mc141622evk 1 motorola
1. summary the mc141622evk is a development board for evaluation of the mc141622. in addition to the mc141622, the mc141622evk contains all the analog circuit that is necessary for buffering both the input and output video signal and generation of the 4xfsc clock. by connecting an external signal source, monitor, and power supply, it is possible to evaluate all the operating modes on the mc141622. 2. specification board dimensions 100 mm (length) x 150 mm (width) y/c separation lsi mc141622fu mount video input amplifier mc14577 2sc2002 use video output amplifier mc14576 use clamp circuit 2sc2002 2sa953 use clock generator mc1378p use clock buffer amplifier mc14576 use analog input/output interface bnc connector x3, s terminal output mount digital input/output interface 16 pin header mount action mode mc141622 supports all operating modes regulator mc7805ct use recommended supply voltage + 10 v operating temperature 0 to 50 c supply current 350 ma order this document by mc141622evk/d semiconductor technical data
? motorola, inc. 1997 rev 3 1/97 tn97012000
mc141622evk motorola 2 3. board operation 3.1 acfii operating mode afcii has four operating modes. any one of these modes can be selected using the digital code input to mode 0 and mode 1 using rotary sw. the function of each mode is as follows. (1) normal fsc mode this is the mode for usual y/c separation. it separates y/c from the video signal that is input to the a/d converter. the coring parameter of the vertical enhancer can be set up by the digital code that is input to c0 c3 (block level parameter), c4 c7 (white level parameter), and d4 d7 (noise slice level parameter). the clock is a 3.579545 mhz subcarrier input to the clk connector; the builtin 4x pll generates 4xfsc clock. (2) normal 4xfsc mode this mode is used for y/c separation. it separates y/c from the video signal that is input to the a/d con- verter. the coring parameter of the vertical enhancer can be set up by the digital code that is input to c0 c3 (block level parameter), c4 c7 (white level parameter), and d4 d7 (noise slice level parameter). the clock is 14.31818 mhz which is a 4x subcarrier input to the clk connector. (3) digital input comb filter mode this mode uses the a/d converter, filter, and d/a converter as two independent blocks. the digital data converted by the a/d converter is output on c0 c7. data input on d0 d7 is processed by the acfii. filtering is performed by the algorithm of acfii and the y/c video is output as analog signals from y out and c out . these two blocks can operate with input clock signals that have different frequencies or phases and can be operated independently by using the clk(ad) for the a/d converter, and the clk input for the d/a converter. the clock is 14.31818 mhz which is a 4x subcarrier input to the clk connector and the clk(ad) con- nector. (4) digital output comb filter mode in addition to the normal y/c analog outputs, the mc141622evk can provide the y/c signals as digital luminance and chrominance signals. the digital luminance data is output on c0 c7 and the digital chrominance data is output on d0 d7. this digital data can be modified by other digital processing.
mc141622evk 3 motorola the following table is the assignment for the operating mode. mode switching function mode mode1 mode0 rotary sw normal fsc mode l l 0 normal 4xfsc mode l h 1 digital input comb filtering mode h l 2 digital output comb filtering mode h h 3 4. bk function by setting the bk pin (toggle sw1) to the h level, composite video is output on the y out pin and the chro- minance signal on the c out pin. the following table is the function of the bk pin. bk function bk pin y out pin c out pin l luminance chrominance h composite chrominance 4.1 vertical enhancer function by setting the vh pin (toggle sw2) to the l level, the vertical enhancer feature is enabled. the coring parameter of the vertical enhancer can be set up every 1 lsb by the digital code that are input to c0 c3 (black level parameter), c4 c7 (white level parameter), and d4 d7 (noise slice level param- eter. the set up level of the coring parameter and characteristics are as follows. coring characteristics out in white black out in white level (c4 c7) (0 15 step) out in black level (c0 c3) (0 16 step) out in noise level (d4 d7) (0 15 step) vertical enhancer function vh pin vertical enhancer l on h off coring parameter set up c7 c6 c5 c4 ll c3 c2 c1 c0 level d7 d6 d5 d4 l l l l l l l l l l h h l h l h 0 1 2 3 l l l l h h h h l l h h l h l h 4 5 6 7 h h h h l l l l l l h h l h l h 8 9 a b h h h h h h h h l l h h l h l h c d e f
mc141622evk motorola 4 4.2 clock generator compounding the clock generator (mc1378p) provides the necessary reference oscillator and phase locks the clock to the color subcarrier by inputting the composite video signal. vc1 adjusts the horizontal vco to synchronize the output of the burst gate (pin 5 on the mc1378p) with the input video signal. vc2 adjusts the chroma vco for maximum amplitude output from the clock buffer (pin 1 on the mc14576). vr3 adjusts pullin of the chroma pll filter. this is usually fixed to the center position. vr4 selects the dc bias for the clock buffer output and is usually 2.25 v. 4.3 video amplifier adjustment on the video amplifier (mc14577), the gain is adjusted by vr1. this sets the input range (3.0 vpp) of the a/d converter in mc141622fu. vr2 is the clamp level adjustment. this adjusts the sync tip clamping of the input video signal to the video amplifier. 4.4 outside interface the outside interface should provide a composite video input signal to bnc1. the mc141622evk pro- vides y/c separation and outputs the luminance from bnc2 and the color signal from bnc3. there is an s output connector on this board for easy connection to instruments having an s input connector. bnc4 and bnc5 are for the external input of each clk and clk(ad). however, when using these, it is necessary to modify the board pattern; i.e., cut (j5, j6). there is no filter for bandwidth limitations on this board beyond that imposed by the bandwidth limitations of the mc14577 buffer amplifier. to minimize noise resulting from excessive bandwidth, the bandwidth of input video signal should be limited to no more than one half of the clock frequency.
mc141622evk 5 motorola 5. mc141622evk circuit clk(ad) bncs 40 + clk bnc4 + + + + + + + + 1/2mc14678 + 2/2mc14678 + + + + + + + + + + + + + + 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 1 2 3 4 5 6 7 8 9 1011121314151617181920 0.1 m f 1.0 m f 470 k w 0.1 m f 0.0047 f 160 30 pf 0.02 f 1.8 k w 1 m f 2.2 k w 4 mhz cer. res. 680 14.3 mhz 17.7 mhz mc1378p mc14576 1 2 3 4 5678 0.1 m f 7.5 m w 1 m w 0.1 m f 47 m f 4.7 m f 47 m f 0.1 m f 0.1 m f 33 m h 47 k w x 8 d4 d5 d6 d7 c0 c1 c2 c3 c4 c5 c6 c7 pco fl in ref(da) i gnd(ad) cc bias y out c out gnd(da) d3 d2 d1 d0 bk gnd (d) v cc(d) vh fsc nc nc nc 10 k w x 2 47 m f 0.1 m f 33 m h te1 te0 mode1 mode0 clk(ad) gnd(d) v cc(d) clc cl out v in rbt rtp 33 m h v cc(a) 10 v y out bnc2 c out bnc3 1 2 3 4 5 6 7 8 8 4 7 k w 7 k w 9.1 k w 47 m f 47 m f 47 m f 0.1 m f 0.1 m f 47 m f 0.1 m f 10 k 47 m f 0.1 m f 33 m h 33 m h 0.1 m f 10 m f 0.33 m f 1 m w 750 k w 0.1 m f 4.7 m f mc7805ct v cc(a) (5 v) v out v in gnd mc141622 12345 6789101112 15 16 17 18 19 20 13 14 48 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 41 42 43 44 45 46 47 48 adc gnd dac gnd digital gnd tantalum capacitor multilayer ceramic capacitor c2002 mc14677 1 2 3 4 8 47 m f 0.1 m f 0.1 m f 47 m f 33 m h 160 video in bnc1 1.0 m f clamp level 2.2 k w a953 c2002 2 k w 10 k w x 8 rotary sw 47 m f 0.1 m f v cc(d) 5 v v cc(d) 5 v gain adjust 1 k w 610 47 m f 30 pf 750 k w 1 k w j6 v cc(a) 10 v sw m m 0.1 m f 0.1 m f 0.1 m f 0.1 m f 0.1 m f 0.1 m f 0.1 m f 0.1 m f 0.1 m f 1.0 m f 1.0 m f 1.0 m f 0.1 m f 33 m h 0.001 f m + 1.0 m f 5 10 k w x 8 47 k w x 8 j5 v cc(d) 5 v 33 m h 33 m h 0.1 f m w 0.1 m f 10 m f v cc(a) (10 v) 0.1 m f 4.7 m f 1.0 m f 2 k w 2.2 k w 2.2 k w 33 m h v cc(da) v cc(ad) 47 k x 4 w 610 k 43 k w 200 ov bias
mc141622evk motorola 6 6. mc141622evk parts list reference designation description ic1 mc141622fu ic2 mc14576cp ic3 mc14577cp ic4 mc7805ct ic5 mc14576cp ic6 mc1378p tr1 2sc2002 tr2 2sc2002 tr3 2sa953 r1 9.1 k w r2 62 k w r3, r4 75 w r5 3.6 k w r6 750 k w r7, r8 2.0 k w r9 510 w r10 150 w r11 510 k w r12, r13 2.2 k w r14 47 k w x 4 r15 47 k w x 8 r16 10 k w x 8 r17 47 k w x 8 r18 10 k w x 8 r19, r20 10 k w x 4 r21 200 w r22 1.8 k w r23 680 w r24 750 k w r25 2.2 k w r26 7.5 m w r27 1.0 m w r28 150 w r29 470 k w l1 l9 33 m h l10 4.7 m h l11 33 m h vr1 1 k w vr2 2.2 k w vr3 1 k w vr4 1 m w vc1, vc2 30 pf sw1, sw2 toggle switch dip sw1, dip sw2 8 channel dip switch rotary sw 16 channel switch 4 mhz cer. res 14.32 mhz crystal reference designation description c1 0.1 m f c2, c3 47 m f c4, c5, c6 0.1 m f c7 47 m f c8 0.1 m f c9 10 m f c10 0.1 m f c11 10 m f c12 0.33 m f c13 1.0 m f c14, c15 0.1 m f c16 47 m f c17 0.1 m f c18 1.0 m f c19 47 m f c20, c21 0.1 m f c22 47 m f c23 0.1 m f c24 47 m f c25 0.1 m f c26 47 m f c27 10 m f c28 0.1 m f c29, c30 47 m f c31 0.1 m f c32 0.022 m f c33, c34 1.0 m f c35 0.1 m f c36 0.001 m f c37 47 m f c38 c45 0.1 m f c46 1.0 m f c47, c48 0.1 m f c49 c51 1.0 m f c52 0.1 m f c53 47 m f c54 0.047 m f c55 c57 0.1 m f
mc141622evk 7 motorola 7. mc141622evk layout c57 mc1378p ic8 c53 c52 c49 c48 7805ct bnc1 c30 c31 l8 r22 c32 c33 r25 c36 c34 r24 l9 l10 r26 c39 c47 power c24 c23 c20 c19 r161 tr2 tr1 r6 c13 c10 c11 c8 c9 c7 j2 ic4 c29 c16 l3 r5 r1 c27 r21 c28 c29 r7 r20 c25 c26 j4 r19 r2 c3 c14 r4 setting clamp level bnc2 bnc3 bnc4 clk mc141622 ic1 bnc5 clk(ad) rotary sw setting video amplitude video in mc14577 ic3 y out clk c out on off on off vr2 vr1 vr3 vr4 r28 c31 vc1 c56 c55 c54 l11 c51 c50 r28 c21 c22 l5 r13 tr3 r12 r11 c18 r9 r8 c17 l4 r27 c38 c37 j6 j3 c15 j1 c6 l1 c2 c1 c4 l4 r3 r4 r15 pin header dip sw2 r16 r18 dip sw1 r17 pin header sw1 sw2 l6 j5 vc2 vertical enhance bk mc14576 ic2 r7 c42 c43 c44 c45 c46 c41 cport dport 4 mhz 14.32 mc14576 ic6 c12 c40 s connector
mc141622evk motorola 8 motorola reserves the right to make changes without further notice to any products herein. motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. atypicalo parameters which may be provided in motorola data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. all operating parameters, including atypicalso must be validated for each customer application by customer's technical experts. motorola does not convey any license under its patent rights nor the rights of others. motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the motorola product could create a situation where personal injury or death may occur. should buyer purchase or use motorola products for any such unintended or unauthorized application, buyer shall indemnify and hold motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that motorola was negligent regarding the design or manufacture of the part. motorola and are registered trademarks of motorola, inc. motorola, inc. is an equal opportunity/affirmative action employer. mfax is a trademark of motorola, inc. how to reach us: usa / europe / locations not listed : motorola literature distribution; japan : nippon motorola ltd.; tatsumispdjldc, 6f seibubutsuryucenter, p.o. box 5405, denver, colorado 80217. 3036752140 or 18004412447 3142 tatsumi kotoku, tokyo 135, japan. 81335218315 mfax ? : rmfax0@email.sps.mot.com touchtone 6 022446609 asia / pacific : motorola semiconductors h.k. ltd.; 8b tai ping industrial park, internet : http://www.mot.com/sps/ 51 ting kok r oad, tai po, n.t., hong kong. 85226629298 mc141622evk/d ?
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