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d a t a sh eet product speci?cation supersedes data of august 1992 file under integrated circuits, ic02 january 1993 integrated circuits SAA5246a integrated vip and teletext (ivt1.0)
january 1993 2 philips semiconductors product speci?cation integrated vip and teletext (ivt1.0) SAA5246a features complete teletext decoder in a 48-pin dil or 64-pin qfp, integrated circuit single + 5 v power supply both video and scan related synchronization modes are supported rgb interface to standard colour decoder ics, push-pull output drive digital data slicer and display clock phase-locked loop reduce peripheral components to a minimum data capture performance similar to saa5231 (vip2) option for up to seven national languages optional storage of packet 24 in the display memory separate text and video signal quality detectors, 625/525 video status and language version all readable via i 2 c-bus automatic odd/even output control with override control of display pll free-run and rolling header via i 2 c-bus vcs to scs mode for stable 525 line status display. description the SAA5246a is a single-chip teletext decoder ic for decoding 625 line base world system teletext transmissions. the teletext decoder hardware is based on the enhanced computer controlled ecct device (saa5243) with some additional features. the video input processor section of the device uses mixed analog and digital designs in the data slicer and clock phase-locked-loop functions. as a result the number of external components are greatly reduced and no critical or adjustable components are required. quick reference data ordering information notes 1. sot240-1; 1996 november 22. 2. sot319-3; 1996 november 22. symbol parameter min. typ. max. unit v dd positive supply voltage 4.5 5.0 5.5 v i dd supply current - 64 128 ma v syn sync amplitude 0.1 0.3 0.6 v v vid video amplitude 0.7 1.0 1.4 v f xtal crystal frequency - 27 - mhz t amb operating ambient temperature - 20 - +70 c extended type number package pins pin position material code SAA5246ap 48 dil plastic sot240ac3 (1) SAA5246agp 64 qfp plastic sot319da3 (2)
january 1993 3 philips semiconductors product speci?cation integrated vip and teletext (ivt1.0) SAA5246a fig.1 block diagram for sot240 (dil48) package. handbook, full pagewidth display data slicer and clock regenerator teletext acquisition and decoding analog to digital converter timing chain memory interface i 2 c-bus interface crystal oscillator input clamp and sync separator display clock phase locked loop y blan rgbref rgb 22 19 20 18 15-17 21 24 23 1, 6, 10 25 sda scl v dd v ss dcvbs oscout oscin 2 3 4 7 9 8 11 13 12 oscgnd black iref cvbs pol sttv / lfb mla840 SAA5246a vcr / ffb odd / even cor 48 47 34- 46 26- 33 we oe a0 - a12 d0 - d7 cvbs 5, 14
january 1993 4 philips semiconductors product speci?cation integrated vip and teletext (ivt1.0) SAA5246a pinning symbol pin description sot240 sot319 oscout 2 27 27 mhz crystal oscillator output oscin 3 28 27 mhz crystal oscillator input oscgnd 4 29 0 v crystal oscillator ground v ss 5, 14, 25 26, 30, 31, 43, 58 0 v ground black 7 35 video black level storage pin, connected to ground via a 100 nf capacitor cvbs 8 36 composite video input pin. a positive-going 1 v (peak-to-peak) input is required, connected via a 100 nf capacitor iref 9 37 reference current input pin, connected to ground via a 27 k w resistor v dd 1, 6, 10 25, 32, 38 + 5 v positive supply pol 11 39 sttv/lfb/ffb polarity selection pin sttv/lfb 12 40 sync to tv output pin/line ?yback input pin. function controlled by an internal register bit (scan sync mode) vcr/ffb 13 42 pll time constant switch/?eld input pin. function controlled by an internal register bit (scan sync mode) r 15 44 dot rate character output of the red colour information g 16 45 dot rate character output of the green colour information b 17 47 dot rate character output of the blue colour information rgbref 18 48 input dc voltage to de?ne the output high level on the rgb pins blan 19 52 dot rate fast blanking output cor 20 53 programmable output to provide contrast reduction of the tv picture for mixed text and picture displays or when viewing news?ash/subtitle pages. open-drain output odd/even 21 54 a 25 hz output synchronized to the input cvbs ?eld sync pulses to make a non-interlaced display by adjustment of the vertical de?ection currents. y 22 55 dot rate character output of teletext foreground colour information. open-drain output scl 23 56 serial clock input for i 2 c-bus. it can still be driven high during power-down of the device sda 24 57 serial data port for the i 2 c-bus. open drain output. it can still be driven high during power-down of the device d0-d5 26-31 60-64, 3 data ports for the page sram n.c. - 1, 2, 10, 11, 15, 18, 33, 34, 41, 46, 49 - 51, 59 not connected d6-d7 32, 33 4, 5 data ports for the page sram
january 1993 5 philips semiconductors product speci?cation integrated vip and teletext (ivt1.0) SAA5246a a0-a12 34-46 6-9, 12-14, 16, 17, 19-22 address output for the page sram oe 47 23 output enable for the page sram we 48 24 write enable for the page sram symbol pin description sot240 sot319
january 1993 6 philips semiconductors product speci?cation integrated vip and teletext (ivt1.0) SAA5246a fig.2 pin configuration; sot240 (dil48). handbook, halfpage 1 2 3 4 5 6 7 8 9 10 11 12 13 40 39 38 37 36 35 34 33 32 31 30 29 28 27 14 15 16 17 18 19 20 22 23 24 26 25 21 42 41 43 44 45 46 47 48 v dd oscout oscin oscgnd v ss black cvbs iref v dd pol sttv / lfb v ss r g b rgbref blan y scl sda a12 a11 a10 a9 a8 a7 a6 a5 a4 a3 a2 a1 a0 d7 d6 d5 d4 d3 d2 d1 d0 v ss mla841 SAA5246a we oe vcr / ffb cor odd / even v dd
january 1993 7 philips semiconductors product speci?cation integrated vip and teletext (ivt1.0) SAA5246a fig.3 pin configuration; sot319 (qfp64). handbook, full pagewidth 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 51 50 49 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 48 20 21 22 24 25 26 27 28 29 30 31 32 23 64 63 62 60 59 58 57 56 55 54 53 52 61 mla843 a9 a8 a7 a6 a5 a4 a3 a2 a1 a0 d7 d6 d5 SAA5246a n.c. black iref cvbs pol sttv / lfb vcr / ffb rgbref n.c. n.c. v ss v dd r g b n.c. n.c. n.c. d4 d3 d2 d1 d0 n.c. y sda scl blan cor odd / even v ss v dd we oe a12 a11 a10 v ss v dd v ss v ss oscout oscin oscgnd n.c. n.c. n.c. n.c. n.c. index corner
january 1993 8 philips semiconductors product speci?cation integrated vip and teletext (ivt1.0) SAA5246a limiting values in accordance with absolute maximum system (iec 134) note to the limiting values 1. electrostatic handling is equivalent to discharging a 100 pf capacitor through a 1.5 k w series resistor with a 15 ns rise time. failure rate the failure rate at t amb = 55 c will be a maximum of 1000 fits (1 fit = 1 10 - 9 failures per hour). symbol parameter min. max. unit v dd supply voltage (all supplies) - 0.3 6.5 v v i input voltage (any input) - 0.3 v dd +0.5 v v o output voltage (any output) - 0.3 v dd +0.5 v i o output current (each output) - 10 ma i iok dc input or output diode current - 20 ma t amb operating ambient temperature - 20 +70 c t stg storage temperature - 55 +125 c v stat electrostatic handling (see note 1) - 2000 +2000 v
january 1993 9 philips semiconductors product speci?cation integrated vip and teletext (ivt1.0) SAA5246a characteristics v dd = 5 v 10%; t amb = - 20 to + 70 c, unless otherwise speci?ed symbol parameter conditions min. typ. max. unit supplies v dd supply voltage range 4.5 5.0 5.5 v i dd total supply current - 64 128 ma inputs cvbs v syn sync amplitude 0.1 0.3 0.6 v t syn delay from cvbs to tcs output from sttv buffer (nominal video, average of leading/trailing edge) - 150 0 +150 ns t syd change in sync delay between all black and all white video input at nominal levels 0 - 25 ns v vid(p-p) video input amplitude (peak-to-peak) 0.7 1.0 1.4 v display pll catching range 7 --% z src source impedance -- 250 w c i input capacitance -- 10 pf iref r g resistor to ground - 27 - k w pol v il low level input voltage - 0.3 - +0.8 v v ih high level input voltage 2.0 - v dd +0.5 v i li input leakage current v i = 0 to v dd - 10 - +10 m a c i input capacitance -- 10 pf lfb v il low level input voltage - 0.3 - +0.8 v v ih high level input voltage 2.0 - v dd +0.5 v i li input leakage current v i = 0 to v dd - 10 - +10 m a i i input current note 1 - 1 - +1 ma t lfb delay between lfb front edge and input video line sync - 250 - ns vcr/ffb v il low level input voltage - 0.3 - +0.8 v v ih high level input voltage 2.0 - v dd +0.5 v i li input leakage current v i = 0 to v dd - 10 - +10 m a i i input current note 1 - 1 - +1 ma
january 1993 10 philips semiconductors product speci?cation integrated vip and teletext (ivt1.0) SAA5246a rgbref v il low level input voltage - 0.3 - v dd +0.5 v i li input leakage current v i = 0 to v dd - 10 - +10 m a i dc dc current -- 10 ma scl v il low level input voltage - 0.3 - +1.5 v v ih high level input voltage 3.0 - v dd +0.5 v i li input leakage current v i = 0 to v dd - 10 - +10 m a f scl clock frequency 0 - 100 khz t r input rise time 10% to 90% -- 2 m s t f input fall time 90% to 10% -- 2 m s c i input capacitance -- 10 pf inputs/outputs c rystal oscillator (oscin; oscout) f xtal crystal frequency - 27 - mhz v osc oscillation amplitude (peak-to-peak value) - 1.5 - v g v small signal voltage gain - 1 - v/v g m mutual conductance 5 -- ma/v c i input capacitance -- 10 pf c fb feedback capacitance - 1 - pf black c blk storage capacitor to ground - 100 - nf i li input leakage current v i = 0 to v dd - 10 - +10 m a sda v il low level input voltage - 0.3 - +1.5 v v ih high level input voltage 3.0 - v dd +0.5 v i li input leakage current v i = 0 to v dd - 10 - +10 m a c i input capacitance -- 10 pf t r input rise time 10% to 90% -- 2 m s t f input fall time 90% to 10% -- 2 m s v ol low level output voltage i ol = 3 ma 0 - 0.5 v t f output fall time 3 v to 1 v -- 200 ns c l load capacitance -- 400 pf symbol parameter conditions min. typ. max. unit
january 1993 11 philips semiconductors product speci?cation integrated vip and teletext (ivt1.0) SAA5246a d0 to d7 v il low level input voltage - 0.3 - +0.8 v v ih high level input voltage 2.0 - v dd +0.5 v i li input leakage current - 10 - +10 m a c i input capacitance -- 10 pf v ol low level output voltage i ol = + 1.6 ma 0 - 0.4 v v oh high level output voltage i oh = - 0.2 ma 2.4 - v dd v t r output rise time 0.6 v to 2.2 v -- 50 ns t f output fall time 2.2 v to 0.6 v -- 50 ns c l load capacitance -- 120 pf outputs sttv g stt gain of sttv relative to video input 0.9 1.0 1.1 v tcs tcs amplitude 0.2 0.3 0.45 v v dcs dc shift between tcs output and nominal video output -- 0.15 v i o output drive current -- 3.0 ma c l load capacitance -- 100 pf a0 to a12 a ddress output to memory v ol low level output voltage i ol = + 1.6 ma 0 - 0.4 v v oh high level output voltage i oh = - 0.2 ma 2.4 - v dd v c l load capacitance -- 120 pf t r output rise time 0.6 v to 2.2 v -- 50 ns t f output fall time 2.2 v to 0.6 v -- 50 ns oe, we v ol low level output voltage i ol = + 1.6 ma 0 - 0.4 v v oh high level output voltage i oh = - 0.2 ma 2.4 - v dd v c l load capacitance -- 120 pf t r output rise time 0.6 v to 2.2 v -- 50 ns t f output fall time 2.2 v to 0.6 v -- 50 ns symbol parameter conditions min. typ. max. unit
january 1993 12 philips semiconductors product speci?cation integrated vip and teletext (ivt1.0) SAA5246a r, g and b v ol low level output voltage i ol = 2 ma 0 - 0.2 v v oh high level output voltage i oh = - 1.6 ma; rgbref v dd - 2 v; note 2 rgbref - 0.25 v rgbref rgbref +0.25 v v i dc dc current --- 3.3 ma | z o | output impedance -- 200 w c l load capacitance -- 50 pf t r output rise time 10% to 90% -- 20 ns t f output fall time 90% to 10% -- 20 ns blan v ol low level output voltage i ol = 0.2 ma 0 - 0.4 v v oh high level output voltage i oh = - 0.2 ma; v dd = 4.5 v; note 2 1.1 -- v v oh high level output voltage i oh = 0 ma; v dd = 5.5 v; note 2 -- 2.8 v c l load capacitance -- 50 pf t r output rise time 10% to 90% -- 20 ns t f output fall time 90% to 10% -- 20 ns odd/even v ol low level output voltage i ol = +1.6 ma 0 - 0.4 v v oh high level output voltage i oh = - 1.6 ma v dd - 0.4 - v dd v c l load capacitance -- 120 pf t r output rise time 0.6 to 2.2 v -- 50 ns t f output fall time 2.2 to 0.6 v -- 50 ns cor and y( open drain ) v oh pull-up voltage at pin -- v dd v v ol low level output voltage i ol = +2 ma 0 - 0.4 v v ol low level output voltage i ol = +5 ma 0 - 1.0 v c l load capacitance -- 25 pf t f output fall time load resistor of 1.2 k w to v dd ; measured between v dd - 0.5 and 1.5 v -- 50 ns i lo output leakage current v i = 0 to v dd - 10 - +10 m a t sk skew delay between display outputs r, g, b, cor, y and blan -- 20 ns symbol parameter conditions min. typ. max. unit
january 1993 13 philips semiconductors product speci?cation integrated vip and teletext (ivt1.0) SAA5246a notes to the characteristics 1. this current is the maximum allowed into the inputs when line and field flyback signals are connected to these inputs. series current limiting resistors must be used to limit the input currents to 1 ma. 2. can be pulled higher by external pull-up resistor, (maximum leakage current ? 200 m a). timing m emory interface t cy cycle time - 500 - ns t oe address change to oe low 55 -- ns t addr address active time 450 500 - ns t roew oe pulse width read 295 -- ns t woew oe pulse width write 100 -- ns t acc access time from address data valid -- 150 ns t dh data hold time from oe high or address change 0 - 150 ns t wew we pulse width 100 -- ns t ds data set-up time to we high 60 -- ns t dhwe data hold time from we high 20 -- ns t wr write recovery time 20 -- ns t de data enable from we low 60 -- ns i 2 c- bus t low clock low period 4 --m s t high clock high period 4 --m s t su;dat data set-up time 250 -- ns t hd;dat data hold time 170 -- ns t su;sto set-up time from clock high to stop 4 --m s t buf start set-up time following a stop 4 --m s t hd;sta start hold time 4 --m s t su;sta start set-up time following clock low-to-high transition 4 --m s symbol parameter conditions min. typ. max. unit
january 1993 14 philips semiconductors product speci?cation integrated vip and teletext (ivt1.0) SAA5246a fig.4 composite sync waveforms. handbook, full pagewidth 0 4.66 0 2.33 0 32 34.33 27.33 32 64 m s 59.33 621 (308) 622 (309) 623 (310) 624 (311) 625 (312) 1 2 3456 7 308 309 310 311 312 1 2 3 4 5 6 7 309 310 311 312 313 314 (1) 315 (2) 316 (3) 317 (4) 318 (5) 319 (6) 320 (7) lsp (line sync pulse) ep (equalizing pulse) bp (broad pulse) tcs interlaced tcs interlaced tcs non-interlaced mla037 - 2 64 m s 64 m s [1] [2] tcs is available on sttv/lfb pin. [1] lsp, ep and bp are combined to give tcs as shown below. all timings measured from falling edge of lsp. [2] line numbers placed in the middle of the line. equivalent count numbers in brackets.
january 1993 15 philips semiconductors product speci?cation integrated vip and teletext (ivt1.0) SAA5246a fig.5 display output timing (a) line rate (b) field rate. (1) also blan in character and box blanking handbook, full pagewidth 0 4.66 0 0 lsp mla662 - 1 (tcs) 16.67 41 r, g, b, y (1) r, g, b, y (1) display period display period lines 42 to 291 inclusive (and 355 to 604 inclusive interlaced) 291 312 line numbers 56.67 m s 40 m s 64 m s (a) line rate (b) field rate fig.6 i 2 c-bus timing. handbook, full pagewidth mbc764 t buf t f t high t su;dat t su;sto t hd;dat t su;sta t r t low t hd;sta sda scl sda
january 1993 16 philips semiconductors product speci?cation integrated vip and teletext (ivt1.0) SAA5246a fig.7 odd/even timing. handbook, full pagewidth 621 622 623 624 (311) (310) (308) (309) 625 (312) 1 2 3 4 5 6 309 310 312 313 314 (1) 315 (2) 316 (3) 317 (4) 318 (5) 319 (6) 311 2 m s 2 m s odd / even output (normal sync mode when vcs to scs mode active) odd / even output (normal sync mode) tcs interlaced mla416 - 2 48 m s 30 m s 16 m s (1) 7 odd / even output (slave sync mode) 320 (7) second field start (odd) first field start (even) odd / even output (normal sync mode when vcs to scs mode active) odd / even output (normal sync mode) tcs interlaced odd / even output (slave sync mode) 30 m s (1) (2) (1) or 62 m s if r1 d2.d1.d0 = 111. (2) line numbers placed in the middle of the line. equivalent count numbers in brackets.
january 1993 17 philips semiconductors product speci?cation integrated vip and teletext (ivt1.0) SAA5246a fig.8 memory interface timing (a) read (b) write. _ _ _ _ level during flicker stopped cycle. handbook, full pagewidth mba468 - 2 t cy valid t addr t oe t roew t acc t dh valid (a) read t cy valid t oe t woew t wr t wew t ds t de t dhwe valid valid t acc (b) write address a0 - a12 oe data from ram address a0 - a12 oe we data to ram data from ram
january 1993 18 philips semiconductors product speci?cation integrated vip and teletext (ivt1.0) SAA5246a application information fig.9 application diagram (sot240). (1) value dependent on application handbook, full pagewidth 25 47 48 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 21 22 24 20 1 v dd we oe v ss oscout oscin oscgnd black iref cvbs pol sttv / lfb vcr / ffb y blan rgbref cor odd / even sda scl v dd v ss v dd r g b v ss mla844 - 3 SAA5246a 23 a0 - a12 d0 - d7 34 - 46 26 - 33 v dd v ss 100 nf c7 5 v c4 100 nf 27 mhz 3rd overtone 1 nf 22 nf 10 m f 5 v c5 c6 100 nf 100 nf r2 27 k w 100 nf 33 m f 5 v 5 v 5 v video input sync output (1) (1) (1) 5 v 5 v 2.7 k w 5 v 2.7 k w 8 k x 8-bit sram 100 nf 15 pf 10 pf 3.3 k w 4.7 m h
january 1993 19 philips semiconductors product speci?cation integrated vip and teletext (ivt1.0) SAA5246a SAA5246a page memory organization the organization of the page memory is illustrated by fig.10. the SAA5246a provides an additional row as compared with first generation decoders; this brings the display format up to 40 characters by 25 rows. rows 0 to 23 form the teletext page; row 24 is the extra row available for software generated status messages and flof/fastext prompt information. note to fig.10 row 0 row 0 is for the page header. the first seven columns (0 to 6) are free for status messages. the eighth is an alphanumeric white or green control character, written automatically by SAA5246a to give a green rolling header when a page is being looked for. the last eight characters are for rolling time. row 25 the first 10 bytes of row 25 contain control data relating to the received page as shown in table 1. the remaining 14 bytes are free for use by the microprocessor. fig.10 basic page memory organization. handbook, full pagewidth packet x/22 packet x/23 packet x/24 stored here if r1d7 = 1 14 14 bytes free for microprocessor row 0 1 2 3 4 21 22 23 24 25 mla845 - 1 10 10 bytes for received page information 5 to 20 main page display area 7 characters for status 24 characters from page header rolling when display page looked for 8 characters always rolling (time) fixed character written by ivt hardware alphanumerics white for normal alphanumerics green when looking for display page 7 1 24 8
january 1993 20 philips semiconductors product speci?cation integrated vip and teletext (ivt1.0) SAA5246a table 1 row 25 received control data format. when in extension packet enabled mode the rows of information are organized as illustrated by fig.11. row 23 of the extension page, as shown in fig.11, contains packet 8/30. packet 8/30 is mapped into the SAA5246a memory as follows: 8/30/0 and 8/30/1 to chapter 4 row 23 8/30/2 and 8/30/3 to chapter 5 row 23 8/30/4 to 8/30/15 to chapter 6 row 23 d0 pu0 pt0 mu0 mt0 hu0 ht0 c7 c11 mag0 0 d1 pu1 pt1 mu1 mt1 hu1 ht1 c8 c12 mag1 0 d2 pu2 pt2 mu2 mt2 hu2 c5 c9 c13 mag2 0 d3 pu3 pt3 mu3 c4 hu3 c6 c10 c14 0 0 d4 ham.er ham.er ham.er ham.er ham.er ham.er ham.er ham.er found 0 d5 0 0 0 0 0 0 0 0 0 pblf d60000000000 d70000000000 column 0 1 2 3 4 5 6789 where: page number mag magazine pu page units pt page tens pblf page being looked for found low for page has been found ham.er hamming error in corresponding byte page sub-code mu minutes units mt minutes tens hu hours units ht hours tens c4-c14 transmitted control bits.
january 1993 21 philips semiconductors product speci?cation integrated vip and teletext (ivt1.0) SAA5246a fig.11 organization of the extension memory. handbook, full pagewidth packets x/26/0 - x/26/14 packet x/28/2 packets x/27/0 - x/27/1 packets x/27/4 - x/27/5 packet x/24 if r0d7 = 0 packet x/25 packet x/28/0 packet 8/30 packet x/28/1 row 0 to 14 15 16 17 18 19 20 21 22 23 24 25 mla846 - 1
january 1993 22 philips semiconductors product speci?cation integrated vip and teletext (ivt1.0) SAA5246a register maps SAA5246a mode registers r0 to r11 are shown in table 2. r0 to r10 are write only; r11 is read/write; r11b is read only. register map (r3), for page requests, is shown in detail in table 4. table 2 register map. register d7 d6 d5 d4 d3 d2 d1 d0 adv. control 0 x24 pos free run pll auto odd/even disable hdr roll - disable odd/even vcr mode r1 1/ r11b select mode 1 vcs to scs 7 + p/ 8-bit acq on/off ext. packet enable dew/ full field tcs on ffb mode t1 t0 page request address 2 ham. check bank select a2 acq circuit a1 acq circuit a0 tb start column sc2 start column sc1 start column sc0 page request data 3 -- - prd4 prd3 prd2 prd1 prd0 display chapter 4 -- - - - a2 a1 a0 display control (normal) 5 bkgnd out bkgnd in cor out cor in text out text in pon out pon in display control (news?ash /subtitle) 6 bkgnd out bkgnd in cor out cor in text out text in pon out pon in display mode 7 status top cursor on reveal on bottom half double height box on 24 box on 1-23 box on 0 active chapter 8 -- - - clear mem. a2 a1 a0 cursor row 9 -- - r4 r3 r2 r1 r0 cursor column 10 -- c5 c4 c3 c2 c1 c0 cursor data 11 d7 d6 d5 d4 d3 d2 d1 d0 device status 11b 625/525 sync rom ver r4 rom ver r3 rom ver r2 rom ver r1 rom ver r0 data quality vcs signal quality
january 1993 23 philips semiconductors product speci?cation integrated vip and teletext (ivt1.0) SAA5246a notes to table 2 1. - indicates a bit which does not exist and must be written to logic 0 for future compatibility. 2. all bits in registers r0 to r10 are cleared to logic 0 on power-up except bits d0 and d1 of registers r1, r5 and r6 which are set to logic 1. 3. all memory is cleared to space (00100000) on power-up, except row 0 column 7 chapter 0, which is alpha white (00000111) as the acquisition circuit is enabled but the page is on hold. 4. tb must be set to logic 0 for normal operation. 5. the i 2 c-bus slave address is 0010001. register description r0 advanced control - auto increments to register 1 r11/r11b select selects reading of r11 or r11b vcr mode selects short time constant of pll when logic 1 disable odd/even forces odd/even output low when logic 1 disable hdr roll disables green rolling header and time auto odd/even when set forces odd/even low if any tv picture displayed, if disable odd/even = 0 free run pll will force the pll to free run in all conditions x24 pos automatic display of fastext prompt row when logic 1 r1 mode - auto increments to register 2 t0, t1 interlace/non-interlace 312/313 line control (see table 4) tcs on ffb mode text composite sync or direct sync select (see table 4 for ffb mode selection) dew/full field field-flyback or full channel mode ext. packet enable allocates 2k bytes memory per chapter acq on/off acquisition circuits turned off when logic 1 7 +p/8-bit 7 bits with parity checking or 8-bit mode vcs to scs when logic 1 enables display of messages with 60 hz input signal r2 page request address - auto increments to register 3 ham.check when logic 1 enables hamming 8/4 checking of extension packet 27/0, 27/1 and 8/30/x col sc0 - sc2 point to start column for page request data (see table 3) tb must be logic 0 for normal operation acq circuit selects one of four acquisition circuits bank select selects which bank of four chapters is being accessed, when ext. packet enable = 0 r3 page request data - does not auto increment (see table 3 ) r4 display chapter - auto increments to register 5 determines which of the 8 pages is displayed
january 1993 24 philips semiconductors product speci?cation integrated vip and teletext (ivt1.0) SAA5246a r5 normal display control - auto increments to register 6 pon picture on text text on cor contrast reduction on bkgnd background colour on these functions have in and out referring to inside and outside the boxing function respectively. r6 newsflash display - auto increments to register 7 pon picture on text text on cor contrast reduction on bkgnd background colour on these functions have in and out referring to inside and outside the boxing function respectively. r7 display mode - does not auto increment box on 0 boxing function allowed on row 0 box on 1-23 boxing function allowed on row 1-23 box on 24 boxing function allowed on row 24 double height to display double height text bottom half to select bottom half of page when double height = 1 reveal on to reveal concealed text cursor on to display cursor status top row 25 displayed above or below the main text r8 active chapter - auto increments to register 9 a0 to a2 active chapter clear memory when set to 1, clears the display memory. this bit is automatically reset r9 cursor row - auto increments to register 10 r0 to r4 active row for data written to or read from memory via the i 2 c-bus r10 cursor column - auto increments to register 11 or 11b c0 to c5 active column for data written to or read from memory via the i 2 c-bus r11 cursor data - does not auto increment d0 to d7 data read from/written to memory via i 2 c, at location pointed to by r8, r9 and r10. this location automatically increments each time r11 is accessed r11b device status - does not auto increment vcs signal quality indicates that the video signal quality is good and pll is phase locked to input video when = 1 data quality if good teletext data is detected then = 1 rom ver r0 to r4 indicated language/rom variant. see table 6 - table 13. 625/525 sync if the input video is a 525 line signal when = 1
january 1993 25 philips semiconductors product speci?cation integrated vip and teletext (ivt1.0) SAA5246a table 3 register map for page requests (r3). notes to table 3 1. abbreviations are as for table 1 except for do care bits. 2. when the do care bit is set to logic 1 this means the corresponding digit is to be taken into account for page request. if the do care bit is set to logic 0 the digit is ignored. this allows, for example, normal or timed page selection. 3. if hold is set low, the page is held and not updated 4. columns auto-increment on successive i 2 c-bus transmission bytes 5. x = don t care table 4 interlace/non-interlace 312/313 line control and odd/even ?eld detection option notes to table 4 1. reverts to interlaced mode if a newsflash or subtitle is being displayed. 2. 'x' = don't care. start column prd4 prd3 prd2 prd1 prd0 0 do care magazine hold mag2 mag1 mag0 1 do care page tens pt3 pt2 pt1 pt0 2 do care page units pu3 pu2 pu1 pu0 3 do care hours tens x x ht1 ht0 4 do care hours units hu3 hu2 hu1 hu0 5 do care minutes tens x mt2 mt1 mt0 6 do care minutes units mu3 mu2 mu1 mu0 tcs on ffb mode t1 t0 result x 0 0 interlaced 312.5/312.5 lines x 0 1 non-interlaced 312/313 lines (note 1) x 1 0 non-interlaced 312/312 lines (note 1) 0 1 1 scs (scan composite sync) mode: ffb leading edge in ?rst broad pulse of ?eld m7 version onwards 1 1 1 scs (scan composite sync) mode: ffb leading edge in second broad pulse of ?eld m7 version onwards
january 1993 26 philips semiconductors product speci?cation integrated vip and teletext (ivt1.0) SAA5246a clock systems crystal oscillator the oscillator is a low amplitude, low distortion design operation at 27 mhz. it is capable of oscillating with both fundamental and third overtone mode crystals. external components should be used to suppress the fundamental output of the third overtone as illustrated in fig.12. table 5 crystal characteristics. symbol parameter min. typ. max. unit crystal (27 mhz, 3rd overtone) c1 series capacitance - 1.7 - pf c0 parallel capacitance - 5.2 - pf c l load capacitance - 20 - pf rr resonant resistance -- 50 w r1 series resistance - 20 -w xa ageing -- 510 - 6 /yr xj adjustment tolerance -- 25 10 - 6 xd drift -- 25 10 - 6 fig.12 crystal oscillator application diagram. handbook, full pagewidth SAA5246a mla847 - 1 10 pf crystal oscillator 100 nf 15 pf 27 mhz 3rd overtone 1 nf 4.7 m h 3.3 k w v dd oscout oscin oscgnd
january 1993 27 philips semiconductors product speci?cation integrated vip and teletext (ivt1.0) SAA5246a character sets the wst specification allows the selection of national character sets via the page header transmission bits, c12 to c14. the basic 96 character sets differ only in 13 national option characters as indicated in tables 15 - 23 with reference to their table position in the basic character matrix illustrated in table 14. the SAA5246a automatically decodes transmission bits c12 to c14. tables 6 - 13 illustrate the character matrices. character bytes are listed as transmitted from b1 to b7. fig.13 character format. handbook, full pagewidth mla663 alphanumerics and graphics 'space' character 0000010 alphanumerics character 1011010 alphanumerics or blast-through alphanumerics character 0001001 alphanumerics character 1111111 contiguous graphics character 1111111 separated graphics character 1111111 separated graphics character 0110111 contiguous graphics character 0110111 background colour display colour = =
january 1993 28 philips semiconductors product speci?cation integrated vip and teletext (ivt1.0) SAA5246a table 6 SAA5246ap/e character data input decoding, west european languages. notes for character version number (00000) see register 11b. 1. these control characters are reserved for compatibility with other data codes. 2. these control characters are presumed before each row begins. handbook, full pagewidth mba429 normal height b 4 b 3 b 2 b 1 b 5 b 6 b 7 b 8 0 1 22a3 3a4 5 6 6a 77a 8 912131415 column r o w b i t s 0 0 0 0 0 0 0 1 0 or 1 0 1 0 0 0 1 1 0 or 1 0 1 1 0 0 1 1 0 1 0 0 0 1 0 1 1 0 0 0 1 0 0 1 1 1 0 0 1 1 0 1 1 1 1 0 1 1 1 1 0 1 1 0 0 1 1 1 14 1 1 1 0 so hold graphics 15 1 1 1 1 si release graphics 11 1 0 1 1 start box esc 12 1 1 0 0 black back - ground 13 1 1 0 1 double height new back - ground 10 1 0 1 0 end box separated graphics 9 1 0 0 1 steady contiguous graphics 8 1 0 0 0 flash conceal display 7 0 1 1 1 alpha - numerics white graphics white 6 0 1 1 0 alpha - numerics cyan graphics cyan 5 0 1 0 1 alpha - numerics magenta graphics magenta 4 0 1 0 0 alpha - numerics blue graphics blue 3 0 0 1 1 alpha - numerics yellow graphics yellow 2 0 0 1 0 alpha - numerics green graphics green 0 0 0 0 0 alpha - numerics black graphics black 1 0 0 0 1 alpha - numerics red graphics red (2) (2) (2) (2) (1) (2) (2) (1) (2) (1)
january 1993 29 philips semiconductors product speci?cation integrated vip and teletext (ivt1.0) SAA5246a table 7 SAA5246ap/h character data input decoding, east european languages notes for character version number (00001) see register 11b 1. these control characters are reserved for compatibility with other data codes. 2. these control characters are presumed before each row begins. handbook, full pagewidth mla961 normal height b 4 b 3 b 2 b 1 b 5 b 6 b 7 b 8 0 1 22a3 3a4 5 6 6a 77a 8 912131415 column r o w b i t s 0 0 0 0 0 0 0 1 0 or 1 0 1 0 0 0 1 0 0 or 1 0 1 1 0 0 1 1 0 1 0 0 0 1 0 1 1 0 0 0 1 0 0 1 1 1 0 0 1 1 0 1 1 1 1 0 1 1 1 1 0 1 1 0 0 1 1 1 14 1 1 1 0 so hold graphics 15 1 1 1 1 si release graphics 11 1 0 1 1 start box esc 12 1 1 0 0 black back - ground 13 1 1 0 1 double height new back - ground 10 1 0 1 0 end box separated graphics 9 1 0 0 1 steady contiguous graphics 8 1 0 0 0 flash conceal display 7 0 1 1 1 alpha - numerics white graphics white 6 0 1 1 0 alpha - numerics cyan graphics cyan 5 0 1 0 1 alpha - numerics magenta graphics magenta 4 0 1 0 0 alpha - numerics blue graphics blue 3 0 0 1 1 alpha - numerics yellow graphics yellow 2 0 0 1 0 alpha - numerics green graphics green 0 0 0 0 0 alpha - numerics black graphics black 1 0 0 0 1 alpha - numerics red graphics red (2) (2) (2) (2) (1) (2) (2) (1) (2) (1)
january 1993 30 philips semiconductors product speci?cation integrated vip and teletext (ivt1.0) SAA5246a table 8 SAA5246ap/t character data input decoding, west european and turkish languages. notes for character version number (00010) see register 11b. 1. these control characters are reserved for compatibility with other data codes 2. these control characters are presumed before each row begins. handbook, full pagewidth mba431 normal height b 4 b 3 b 2 b 1 b 5 b 6 b 7 b 8 0 1 22a3 3a4 5 6 6a 77a 8 912131415 column r o w b i t s 0 0 0 0 0 0 0 1 0 or 1 0 1 0 0 0 1 1 0 or 1 0 1 1 0 0 1 1 0 1 0 0 0 1 0 1 1 0 0 0 1 0 0 1 1 1 0 0 1 1 0 1 1 1 1 0 1 1 1 1 0 1 1 0 0 1 1 1 14 1 1 1 0 so hold graphics 15 1 1 1 1 si release graphics 11 1 0 1 1 start box esc 12 1 1 0 0 black back - ground 13 1 1 0 1 double height new back - ground 10 1 0 1 0 end box separated graphics 9 1 0 0 1 steady contiguous graphics 8 1 0 0 0 flash conceal display 7 0 1 1 1 alpha - numerics white graphics white 6 0 1 1 0 alpha - numerics cyan graphics cyan 5 0 1 0 1 alpha - numerics magenta graphics magenta 4 0 1 0 0 alpha - numerics blue graphics blue 3 0 0 1 1 alpha - numerics yellow graphics yellow 2 0 0 1 0 alpha - numerics green graphics green 0 0 0 0 0 alpha - numerics black graphics black 1 0 0 0 1 alpha - numerics red graphics red (2) (2) (2) (2) (1) (2) (2) (1) (2) (1)
january 1993 31 philips semiconductors product speci?cation integrated vip and teletext (ivt1.0) SAA5246a table 9 SAA5246ap/j character data input decoding, jugoslav languages notes for character version number (00011) see register 11b 1. * these control characters are reserved for compatibility with other data codes. 2. ** these control characters are presumed before each row begins. handbook, full pagewidth mla962 normal height b 4 b 3 b 2 b 1 b 5 b 6 b 7 b 8 0 1 22a3 3a4 5 6 6a 77a 8 912131415 column r o w b i t s 0 0 0 0 0 0 0 1 0 or 1 0 1 0 0 0 1 1 0 or 1 0 1 1 0 0 1 1 0 1 0 0 0 1 0 1 1 0 0 0 1 0 0 1 1 1 0 0 1 1 0 1 1 1 1 0 1 1 1 1 0 1 1 0 0 1 1 1 14 1 1 1 0 so hold graphics 15 1 1 1 1 si release graphics 11 1 0 1 1 start box esc 12 1 1 0 0 black back - ground 13 1 1 0 1 double height new back - ground 10 1 0 1 0 end box separated graphics 9 1 0 0 1 steady contiguous graphics 8 1 0 0 0 flash conceal display 7 0 1 1 1 alpha - numerics white graphics white 6 0 1 1 0 alpha - numerics cyan graphics cyan 5 0 1 0 1 alpha - numerics magenta graphics magenta 4 0 1 0 0 alpha - numerics blue graphics blue 3 0 0 1 1 alpha - numerics yellow graphics yellow 2 0 0 1 0 alpha - numerics green graphics green 0 0 0 0 0 alpha - numerics black graphics black 1 0 0 0 1 alpha - numerics red graphics red
january 1993 32 philips semiconductors product speci?cation integrated vip and teletext (ivt1.0) SAA5246a table 10 SAA5246ap/k character data input decoding, french and arabic languages. notes for character version number (00100) see register 11b. 1. these control characters are reserved for compatibility with other data codes. 2. these control characters are presumed before each row begins. handbook, full pagewidth mla972 - 1 normal height b 4 b 3 b 2 b 1 b 5 b 6 b 7 b 8 0 1 22a3 3a4 5 6 6a 77a 8 912131415 column r o w b i t s 0 0 0 0 0 0 0 1 0 or 1 0 1 0 0 0 1 0 0 or 1 0 1 1 0 0 1 1 0 1 0 0 0 1 0 1 1 0 0 0 1 0 0 1 1 1 0 0 1 1 0 1 1 1 1 0 1 1 1 1 14 1 1 1 0 so hold graphics 15 1 1 1 1 si release graphics 11 1 0 1 1 start box twist 12 1 1 0 0 black back - ground 13 1 1 0 1 double height new back - ground 10 1 0 1 0 end box separated graphics 9 1 0 0 1 steady contiguous graphics 8 1 0 0 0 flash conceal display 7 0 1 1 1 alpha - numerics white graphics white 6 0 1 1 0 alpha - numerics cyan graphics cyan 5 0 1 0 1 alpha - numerics magenta graphics magenta 4 0 1 0 0 alpha - numerics blue graphics blue 3 0 0 1 1 alpha - numerics yellow graphics yellow 2 0 0 1 0 alpha - numerics green graphics green 0 0 0 0 0 alpha - numerics black graphics black 1 0 0 0 1 alpha - numerics red graphics red 0 1 1 0 0 or 1 1 1 0 0 1 1 1 0 or 1 1 1 1 (1) (1) (2) (2) (2) (2) (2) (2) (2)
january 1993 33 philips semiconductors product speci?cation integrated vip and teletext (ivt1.0) SAA5246a table 11 SAA5246ap/l character data input decoding, arabic and hebrew languages. note for character version number (00100) see register 11b. 1. these control characters are reserved for compatibility with other data codes. 2. these control characters are presumed before each row begins. handbook, full pagewidth mla963 - 1 normal height b 4 b 3 b 2 b 1 b 5 b 6 b 7 b 8 0 1 22a3 3a4 5 6 6a 77a 8 912131415 column r o w b i t s 0 0 0 0 0 0 0 1 0 or 1 0 1 0 0 0 1 0 0 or 1 0 1 1 0 0 1 1 0 1 0 0 0 1 0 1 1 0 0 0 1 0 0 1 1 1 0 0 1 1 0 1 1 1 1 0 1 1 1 1 14 1 1 1 0 so hold graphics 15 1 1 1 1 si release graphics 11 1 0 1 1 start box twist 12 1 1 0 0 black back - ground 13 1 1 0 1 double height new back - ground 10 1 0 1 0 end box separated graphics 9 1 0 0 1 steady contiguous graphics 8 1 0 0 0 flash conceal display 7 0 1 1 1 alpha - numerics white graphics white 6 0 1 1 0 alpha - numerics cyan graphics cyan 5 0 1 0 1 alpha - numerics magenta graphics magenta 4 0 1 0 0 alpha - numerics blue graphics blue 3 0 0 1 1 alpha - numerics yellow graphics yellow 2 0 0 1 0 alpha - numerics green graphics green 0 0 0 0 0 alpha - numerics black graphics black 1 0 0 0 1 alpha - numerics red graphics red 0 1 1 0 0 or 1 1 1 0 0 1 1 1 0 or 1 1 1 1 (1) (1) (2) (2) (2) (2) (2) (2) (2)
january 1993 34 philips semiconductors product speci?cation integrated vip and teletext (ivt1.0) SAA5246a table 12 SAA5246ap/i character data input decoding, greek and turkish languages. note for character version number (00110) see register 11b. 1. * these control characters are reserved for compatibility with other data codes. 2. ** these control characters are presumed before each row begins. handbook, full pagewidth mla964 - 1 normal height b 4 b 3 b 2 b 1 b 5 b 6 b 7 b 8 0 1 22a3 3a4 5 6 6a 77a 8 912131415 column r o w b i t s 0 0 0 0 0 0 0 1 0 or 1 0 1 0 0 0 1 1 0 or 1 0 1 1 0 0 1 1 0 1 0 0 0 1 0 1 1 0 0 0 1 0 0 1 1 1 0 0 1 1 0 1 1 1 1 0 1 1 1 1 0 1 1 0 0 1 1 1 14 1 1 1 0 so hold graphics 15 1 1 1 1 si release graphics 11 1 0 1 1 start box 12 1 1 0 0 black back - ground 13 1 1 0 1 double height new back - ground 10 1 0 1 0 end box separated graphics 9 1 0 0 1 steady contiguous graphics 8 1 0 0 0 flash conceal display 7 0 1 1 1 alpha - numerics white graphics white 6 0 1 1 0 alpha - numerics cyan graphics cyan 5 0 1 0 1 alpha - numerics magenta graphics magenta 4 0 1 0 0 alpha - numerics blue graphics blue 3 0 0 1 1 alpha - numerics yellow graphics yellow 2 0 0 1 0 alpha - numerics green graphics green 0 0 0 0 0 alpha - numerics black graphics black 1 0 0 0 1 alpha - numerics red graphics red twist
january 1993 35 philips semiconductors product speci?cation integrated vip and teletext (ivt1.0) SAA5246a table 13 SAA5246ap/s character data input decoding, english and thai languages. note for character version number (00111) see register 11b. 1. * these control characters are reserved for compatibility with other data codes. 2. ** these control characters are presumed before each row begins. handbook, full pagewidth mla965 - 1 normal height b 4 b 3 b 2 b 1 b 5 b 6 b 7 b 8 0 1 22a3 3a4 5 6 6a 77a 8 912131415 column r o w b i t s 0 0 0 0 0 0 0 1 0 or 1 0 1 0 0 0 1 1 0 or 1 0 1 1 0 0 1 1 0 1 0 0 0 1 0 1 1 0 0 0 1 0 0 1 1 1 0 0 1 1 0 1 1 1 1 0 1 1 1 1 0 1 1 0 0 1 1 1 14 1 1 1 0 so hold graphics 15 1 1 1 1 si release graphics 11 1 0 1 1 start box twist 12 1 1 0 0 black back - ground 13 1 1 0 1 double height new back - ground 10 1 0 1 0 end box separated graphics 9 1 0 0 1 steady contiguous graphics 8 1 0 0 0 flash conceal display 7 0 1 1 1 alpha - numerics white graphics white 6 0 1 1 0 alpha - numerics cyan graphics cyan 5 0 1 0 1 alpha - numerics magenta graphics magenta 4 0 1 0 0 alpha - numerics blue graphics blue 3 0 0 1 1 alpha - numerics yellow graphics yellow 2 0 0 1 0 alpha - numerics green graphics green 0 0 0 0 0 alpha - numerics black graphics black 1 0 0 0 1 alpha - numerics red graphics red
january 1993 36 philips semiconductors product speci?cation integrated vip and teletext (ivt1.0) SAA5246a notes to table 6 - 13 1. control characters shown in columns 0 and 1 are normally displayed as spaces. 2. characters may be referred to by column and row, for example 2/5 refers to %. 3. black represents displayed colour. white represents background. 4. the SAA5246a national option characters are illustrated in table 5. characters 8/6, 8/7, 9/5, 9/6 and 9/7 are special characters for combining with character 8/5 (e, h and t codes only. characters 5/12, 5/13, 5/14 and 5/15 are combined with 5/11 (s code only). 6. national option characters will be displayed according to the setting of control bits c12 to c14. these will be mapped into the basic code table into positions shown in table 8. 7. columns 2a, 3a, 6a and 7a are displayed in graphics mode.
january 1993 37 philips semiconductors product speci?cation integrated vip and teletext (ivt1.0) SAA5246a table 14 saa5146a basic character matrix. h andbook, full pagewidth mla630 2/1 2/0 2/8 3/0 3/8 4/0 4/8 5/0 5/8 7/8 6/8 7/0 nc 6/0 nc 2/9 3/1 3/9 4/1 4/9 5/1 5/9 6/1 6/9 7/1 7/9 2/2 2/10 3/2 3/10 4/2 4/10 5/2 5/10 6/2 6/10 7/2 7/10 2/11 3/3 3/11 4/3 4/11 5/3 6/3 6/11 7/3 2/12 3/4 3/12 4/4 4/12 5/4 6/4 6/12 7/4 2/5 2/13 3/5 3/13 4/5 4/13 5/5 6/5 6/13 7/5 2/6 2/14 3/6 3/14 4/6 4/14 5/6 6/6 7/6 2/7 2/15 3/7 3/15 4/7 4/15 5/7 6/7 6/15 7/7 7/15 2/3 nc 5/11 nc 5/12 nc 5/13 nc 5/14 nc 5/15 nc 7/11 nc 7/12 nc 7/13 nc 7/14 nc 2/4 nc where: nc = national option character position.
january 1993 38 philips semiconductors product speci?cation integrated vip and teletext (ivt1.0) SAA5246a table 15 SAA5246ap/e national option character set. mea559 language c12 c13 c14 phcb (2) 000 001 010 011 100 french italian swedish german english 2 / 3 2 / 4 4 / 0 5 / 11 5 / 12 5 / 13 5 / 14 5 / 15 6 / 0 7 / 11 7 / 12 7 / 13 7 / 14 character position (column / row) spanish 101 (1) (1) phcb are the page header control bits. other combinations default to english.
january 1993 39 philips semiconductors product speci?cation integrated vip and teletext (ivt1.0) SAA5246a table 16 SAA5246ap/h national option character set. a ndbook, full pagewidth mla966 language c12 c13 c14 phcb (1) 000 001 010 101 110 111 rumanian czechoslovakia serbo-croat swedish german polish 2 / 3 2 / 4 4 / 0 5 / 11 5 / 12 5 / 13 5 / 14 5 / 15 6 / 0 7 / 11 7 / 12 7 / 13 7 / 14 character position (column / row) (1) phcb are the page header control bits. other combinations default to german. only the above characters change with the phcb. all other characters in the basic set are shown in table 14.
january 1993 40 philips semiconductors product speci?cation integrated vip and teletext (ivt1.0) SAA5246a table 17 SAA5246ap/t national option character set. a ndbook, full pagewidth mba430 language c12 c13 c14 phcb (1) 000 001 110 011 100 101 spanish french italian turkish german english 2 / 3 2 / 4 4 / 0 5 / 11 5 / 12 5 / 13 5 / 14 5 / 15 6 / 0 7 / 11 7 / 12 7 / 13 7 / 14 character position (column / row) (1) phcb are the page header control bits. other combinations default to english. only the above characters change with the phcb . all other characters in the basic set are shown in table 14.
january 1993 41 philips semiconductors product speci?cation integrated vip and teletext (ivt1.0) SAA5246a table 18 SAA5246ap/j national option character set. n dbook, full pagewidth language c12 c13 c14 phcb (1) 010 011 100 serbo-croatic cyrillic serbo-croat latin serbo-croat latin 2 / 3 2 / 4 4 / 0 5 / 11 5 / 12 5 / 13 5 / 14 5 / 15 6 / 0 7 / 11 7 / 12 7 / 13 7 / 14 character position (column / row) mla970 234567 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 011 011 011 011 011 rumanian (rumanian) serbo-croat serbo-croat latin hungarian swedish (1) phcb are the page header control bits. other combinations default to serbo-croat latin.
january 1993 42 philips semiconductors product speci?cation integrated vip and teletext (ivt1.0) SAA5246a table 19 SAA5246ap/k national option character set. n dbook, full pagewidth mla968 - 1 language (c12, c13, c14) phcb (1) 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 234567 234567 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 arabic french 1 0 0 1 1 1 (1) phcb are the page header control bits. other combinations default to french.
january 1993 43 philips semiconductors product speci?cation integrated vip and teletext (ivt1.0) SAA5246a table 20 SAA5246ap/l national option character set. n dbook, full pagewidth mla967 language (c12, c13, c14) phcb (1) 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 234567 234567 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 arabic hebrew/english 1 0 1 1 1 1 (1) phcb are the page header control bits. other combinations default to hebrew english.
january 1993 44 philips semiconductors product speci?cation integrated vip and teletext (ivt1.0) SAA5246a table 21 SAA5246ap/i national option character set. n dbook, full pagewidth mla969 - 1 language (c12, c13, c14) phcb (1) 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 234567 234567 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 greek turkish 1 1 0 1 1 1 (1) phcb are the page header control bits. other combinations default to turkish.
january 1993 45 philips semiconductors product speci?cation integrated vip and teletext (ivt1.0) SAA5246a table 22 SAA5246ap/s national option character set (part a). n dbook, full pagewidth mla971a 0 1 22a33a4 5 66a77a8 9 121314 15 10 11 14a 15a 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 english ( 0 0 0 ) twist not invoked or thai ( 0 1 0 ) and twist invoked (c ,c ,c ) 12 13 14 phcb (1) (c ,c ,c ) 12 13 14 phcb (1) (1) phcb are the page header control bits. other combinations default to english.
january 1993 46 philips semiconductors product speci?cation integrated vip and teletext (ivt1.0) SAA5246a table 23 SAA5246ap/s national option character set (part b). n dbook, full pagewidth mla971b 0122a33a 4 5 66a77a8 9 10 11 12 13 14 14a 15 15a 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 thai ( 0 1 0 ) twist not invoked or english ( 0 0 0 ) and twist invoked (1) phcb are the page header control bits. other combinations default to english.
january 1993 47 philips semiconductors product speci?cation integrated vip and teletext (ivt1.0) SAA5246a package outlines unit a max. 1 2 b 1 cd e e m h l references outline version european projection issue date iec jedec eiaj mm inches dimensions (inch dimensions are derived from the original mm dimensions) sot240-1 92-11-17 95-01-25 a min. a max. b z max. w m e e 1 1.4 1.14 0.53 0.38 0.36 0.23 62.60 61.60 14.22 13.56 3.90 3.05 0.254 2.54 15.24 15.88 15.24 18.46 15.24 2.1 4.9 0.36 4.06 0.055 0.045 0.021 0.015 0.014 0.009 2.46 2.42 0.56 0.53 0.15 0.12 0.01 0.10 0.60 0.63 0.60 0.73 0.60 0.083 0.19 0.014 0.16 m h c (e ) 1 m e a l seating plane a 1 w m b 1 e d a 2 z 48 1 25 24 b e pin 1 index 0 5 10 mm scale note 1. plastic or metal protrusions of 0.25 mm maximum per side are not included. (1) (1) (1) dip48: plastic dual in-line package; 48 leads (600 mil) sot240-1
january 1993 48 philips semiconductors product speci?cation integrated vip and teletext (ivt1.0) SAA5246a unit a 1 a 2 a 3 b p ce (1) eh e ll p qz y w v q references outline version european projection issue date iec jedec eiaj mm 0.30 0.10 2.90 2.65 0.25 0.50 0.35 0.25 0.14 14.1 13.9 1 19.0 18.4 1.4 1.2 1.2 0.8 7 0 o o 0.2 0.2 0.1 dimensions (mm are the original dimensions) note 1. plastic or metal protrusions of 0.25 mm maximum per side are not included. 1.4 1.0 sot319-3 94-03-22 95-02-04 d (1) (1) (1) 20.1 19.9 h d 25.0 24.4 e z 1.2 0.8 d e q e a 1 a l p q detail x l (a ) 3 b 19 y c e h a 2 d z d a z e e v m a 1 64 52 51 33 32 20 x pin 1 index 2.35 b p d h b p v m b w m w m 0 5 10 mm scale qfp64: plastic quad flat package; 64 leads (lead length 2.35 mm); body 14 x 20 x 2.8 mm sot319-3 a max. 3.25
january 1993 49 philips semiconductors product speci?cation integrated vip and teletext (ivt1.0) SAA5246a soldering introduction there is no soldering method that is ideal for all ic packages. wave soldering is often preferred when through-hole and surface mounted components are mixed on one printed-circuit board. however, wave soldering is not always suitable for surface mounted ics, or for printed-circuits with high population densities. in these situations reflow soldering is often used. this text gives a very brief insight to a complex technology. a more in-depth account of soldering ics can be found in our ic package databook (order code 9398 652 90011). sdip s oldering by dipping or by wave the maximum permissible temperature of the solder is 260 c; solder at this temperature must not be in contact with the joint for more than 5 seconds. the total contact time of successive solder waves must not exceed 5 seconds. the device may be mounted up to the seating plane, but the temperature of the plastic body must not exceed the specified maximum storage temperature (t stg max ). if the printed-circuit board has been pre-heated, forced cooling may be necessary immediately after soldering to keep the temperature within the permissible limit. r epairing soldered joints apply a low voltage soldering iron (less than 24 v) to the lead(s) of the package, below the seating plane or not more than 2 mm above it. if the temperature of the soldering iron bit is less than 300 c it may remain in contact for up to 10 seconds. if the bit temperature is between 300 and 400 c, contact may be up to 5 seconds. qfp r eflow soldering reflow soldering techniques are suitable for all qfp packages. the choice of heating method may be influenced by larger plastic qfp packages (44 leads, or more). if infrared or vapour phase heating is used and the large packages are not absolutely dry (less than 0.1% moisture content by weight), vaporization of the small amount of moisture in them can cause cracking of the plastic body. for more information, refer to the drypack chapter in our quality reference handbook (order code 9397 750 00192). reflow soldering requires solder paste (a suspension of fine solder particles, flux and binding agent) to be applied to the printed-circuit board by screen printing, stencilling or pressure-syringe dispensing before package placement. several techniques exist for reflowing; for example, thermal conduction by heated belt. dwell times vary from 50 to 300 seconds depending on heating method. typical reflow temperatures range from 215 to 250 c. preheating is necessary to dry the paste and evaporate the binding agent. preheat for 45 minutes at 45 c. w ave soldering wave soldering is not recommended for qfp packages. this is because of the likelihood of solder bridging due to closely-spaced leads and the possibility of incomplete solder penetration in multi-lead devices. if wave soldering cannot be avoided, the following conditions must be observed: a double-wave (a turbulent wave with high upward pressure followed by a smooth laminar wave) soldering technique should be used. the footprint must be at an angle of 45 to the board direction and must incorporate solder thieves downstream and at the side corners. even with these conditions, do not consider wave soldering the following packages: qfp52 (sot379-1), qfp100 (sot317-1), qfp100 (sot317-2), qfp100 (sot382-1) or qfp160 (sot322-1). during placement and before soldering, the package must be fixed with a droplet of adhesive. the adhesive can be applied by screen printing, pin transfer or syringe dispensing. the package can be soldered after the adhesive is cured. maximum permissible solder temperature is 260 c, and maximum duration of package immersion in solder is 10 seconds, if cooled to less than 150 c within 6 seconds. typical dwell time is 4 seconds at 250 c. a mildly-activated flux will eliminate the need for removal of corrosive residues in most applications. r epairing soldered joints fix the component by first soldering two diagonally- opposite end leads. use only a low voltage soldering iron (less than 24 v) applied to the flat part of the lead. contact time must be limited to 10 seconds at up to 300 c. when using a dedicated tool, all other leads can be soldered in one operation within 2 to 5 seconds between 270 and 320 c.
january 1993 50 philips semiconductors product speci?cation integrated vip and teletext (ivt1.0) SAA5246a definitions life support applications these products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. philips customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify philips for any damages resulting from such improper use or sale. purchase of philips i 2 c components data sheet status objective speci?cation this data sheet contains target or goal speci?cations for product development. preliminary speci?cation this data sheet contains preliminary data; supplementary data may be published later. product speci?cation this data sheet contains ?nal product speci?cations. limiting values limiting values given are in accordance with the absolute maximum rating system (iec 134). stress above one or more of the limiting values may cause permanent damage to the device. these are stress ratings only and operation of the device at these or at any other conditions above those given in the characteristics sections of the speci?cation is not implied. exposure to limiting values for extended periods may affect device reliability. application information where application information is given, it is advisory and does not form part of the speci?cation. purchase of philips i 2 c components conveys a license under the philips i 2 c patent to use the components in the i 2 c system provided the system conforms to the i 2 c specification defined by philips. this specification can be ordered using the code 9398 393 40011.

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