View CXD2304R_6551070.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

? e94307c0z-te sony reserves the right to change products and specifications without prior notice. this information does not convey any licens e by any implication or otherwise under any patents or other right. application circuits shown, if any, are typical examples illustr ating the operation of the devices. sony cannot assume responsibility for any problems arising out of the use of these circuits. absolute maximum ratings (ta=25 ?) supply voltage av dd , dv dd 7v input voltage (all pins) v in v dd +0.5 to v ss ?.5 v output current (every each channel) i out 0 to 15 ma storage temperature tstg ?5 to +150 ? recommended operating conditions supply voltage av dd , av ss 3.0 to 3.6 v dv dd , dv ss 3.0 to 3.6 v reference input voltage v ref 1.2 v clock pulse width t pw1 , t pw0 22.5 ns (min.) to 1.1 ? (max.) operating temperature topr ?0 to +85 ? description the CXD2304R is an 8-bit high-speed d/a converter for video band use. it has an input/output equivalent to 3 channels of r, g and b. it is suitable for use of digital tv, graphic display, and others. features resolution 8-bit maximum conversion speed 20 msps rgb 3-channel input/output differential linearity error ?.5 lsb low power consumption 50 mw (330 ? load at 1.2 vp-p output) single 3.3 v power supply low glitch noise stand-by function structure silicon gate cmos ic 8-bit 20 msps rgb 3-channel d/a converter 48 pin lqfp (plastic) CXD2304R
? CXD2304R block diagram decoder decoder decoder decoder decoder decoder latches latches latches 32 35 34 42 29 41 40 31 30 33 28 39 38 46 45 44 43 27 37 36 48 47 2lsb s current cells 6msb s current cells clock generator 2lsb s current cells 6msb s current cells clock generator 2lsb s current cells 6msb s current cells clock generator current cells (for full scale) bias voltage generator 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 (lsb) r0 (msb) r7 (lsb) g0 (msb) g7 (lsb) b0 b1 b2 b3 b4 b5 b6 (msb) b7 blk ce r1 r2 r3 r4 r5 r6 g1 g2 g3 g4 g5 g6 dv dd dv dd ro ro rck av dd av dd av dd av dd go go gck av ss dv ss dv ss bo bo bck vg vb iref vref
3 CXD2304R pin configuration r0 r1 r2 r3 r4 r5 r6 r7 g0 g1 g2 g3 b7 b6 b5 b4 b3 b2 b1 b0 g7 g6 g5 g4 bck ro i ref v ref av ss vb dv ss dv ss gck rck ce blk ro go go bo bo vg av dd av dd av dd av dd dv dd dv dd 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 pin description and i/o pins equivalent circuit pin no. symbol i/o equivalent circuit description 1 to 8 9 to 16 17 to 24 25 32 r0 to r7 g0 to g7 b0 to b7 blk vb i i o 1 24 dv dd dv ss to dv dd dv ss 25 dv dd dv ss 32 dv dd digital input r0 (lsb) to r7 (msb) g0 (lsb) to g7 (msb) b0 (lsb) to b7 (msb) blanking input. this is synchronized with the clock input signal for each channel. no signal at h (output 0 v). output condition at l . connect a capacitor of about 0.1 f.
4 CXD2304R pin no. symbol i/o equivalent circuit description 27 28 29 30, 31 33 26 35 34 42 43 to 46 rck gck bck dv ss av ss ce iref vref vg av dd i i o i o dv dd dv ss 28 27 29 dv dd dv ss 26 av dd av ss 34 35 av dd av ss av dd av dd av ss 42 clock input. digital gnd analog gnd chip enable input. this is not synchronized with the clock input signal. no signal (output 0 v) at h and minimizes power consumption. reference current output. connect a resistance 16 times r ir that of output resistance value r out . reference voltage output. set full scale output value. connect a capacitor of about 0.1 f. analog v dd
5 CXD2304R pin no. symbol i/o equivalent circuit description 37 39 41 36 38 40 47, 48 ro go bo ro go bo dv dd o av dd av ss 41 39 37 av dd av ss 36 38 40 current output. voltage output can be obtained by connecting a resistance. inverted current output. normally dropped to analog gnd. digital v dd
6 CXD2304R electrical characteristics (f clk =20 mhz, av dd =dv dd =3.3 v, r out =330 ? , v ref =1.2 v, r ir =5.1 k ? , ta=25 c) item resolution conversion speed integral non-linearity error differential non-linearity error output full-scale voltage output full-scale ratio ? 1 output full-scale current output offset voltage glitch energy crosstalk supply current analog input resistance input capacitance digital input voltage digital input current setup time hold time propagation delay time ce enable time ? 2 ce disable time ? 2 symbol n f clk e l e d v fs f sr i fs v os ge ct i dd i stb r in c i v ih v il i ih i il ts th t pd t e t d measurement conditions av dd =dv dd =3.0 to 3.6 v ta= 40 to 85 c endpoint when 00000000 data input when 1 khz sine wave input when 14.3 mhz color ce= l bar data input ce= h vref av dd =dv dd =3.0 to 3.6 v ta= 20 to +75 c av dd =dv dd =3.0 to 3.6 v ta= 20 to +75 c ce=h l ce=l h min. 0.5 2.5 0.5 1.12 0 1 2.5 5 7 3 typ. 8 1.24 1.5 3.8 150 53 15 20 4 4 max. 20 2.5 0.5 1.36 3.0 1 18 1.2 9 0.5 5 8 8 unit bit msps lsb lsb v % ma mv pv s db ma m ? pf v a ns ns ns ms ms full-scale voltage of channel ? 1 full-scale output ratio = average of the full-scale voltage of the channels 1 100 (%) ? 2 when the external capacitors for the vg pins are 0.1 f.
7 CXD2304R electrical characteristics measurement circuit analog input resistance measurement circuit digital input current CXD2304R +3.6v av dd , dv dd av ss , dv ss v a maximum conversion velocity measurement circuit 8bit counter with latch 0.1 dv ss 25 26 32 27 28 29 clk 20mhz square wave oscilloscope 330 av ss 330 av ss 330 av ss av dd 0.1 5.1k av ss blk ce vb rck gck bck 39 41 42 34 35 37 1k ro go bo vg vref iref r0 to r7 1 to 8 g0 to g7 17 to 24 b0 to b7 17 to 24 }
8 CXD2304R crosstalk measurement circuit digital waveform generator 330 av ss av dd 0.1 5.1k av ss blk ce vb rck gck bck ro go bo vg vref iref 0.1 dv ss 25 26 32 27 28 29 clk 20mhz square wave 1k 330 av ss 330 av ss 39 41 42 34 35 37 all 1 spectrum analyzer r0 to r7 1 to 8 g0 to g7 9 to 16 b0 to b7 17 to 24 setup time hold time measurement circuit glitch energy 8bit counter with latch delay controller av dd 0.1 5.1k av ss 330 av ss 330 av ss 330 av ss 0.1 dv ss blk ce vb rck gck bck ro go bo vg vref iref 39 41 42 34 35 37 delay controller 25 26 32 27 28 29 1k oscilloscope clk 1mhz square wave r0 to r7 1 to 8 g0 to g7 9 to 16 b0 to b7 17 to 24 }
9 CXD2304R dc characteristics measurement circuit 330 av ss 330 av ss 330 av ss av dd 0.1 5.1k av ss blk ce vb rck gck bck ro go bo vg vref iref 0.1 dv ss clk 20mhz square wave controller dvm 1k 25 26 32 27 28 29 39 41 42 34 35 37 r0 to r7 1 to 8 g0 to g7 9 to 16 b0 to b7 17 to 24 propagation delay time measurement circuit 330 av ss 330 av ss 330 av ss clk 1mhz square wave blk ce vb rck gck bck ro go bo vg vref iref 0.1 dv ss 25 26 32 27 28 29 frequency demultiplier av dd 0.1 5.1k av ss 1k 39 41 42 34 35 37 oscilloscope r0 to r7 1 to 8 g0 to g7 9 to 16 b0 to b7 17 to 24 snr measurement circuit digital waveform generator 330 av ss av dd 0.1 5.1k av ss blk ce vb rck gck bck ro go bo vg vref iref 0.1 dv ss 25 26 32 27 28 29 clk 20mhz square wave 1k 330 av ss 330 av ss 39 41 42 34 35 37 all 1 spectrum analyzer all 1 r0 to r7 1 to 8 g0 to g7 9 to 16 b0 to b7 17 to 24 snr : different between primary component and secondary distortion
10 CXD2304R description of operation timing chart i/o chart (when full scale output voltage at 1.2 v) application circuit clk aa aa aa aaa aaa aaa aa aa aa aaa aaa aaa data d/a out t pw1 t pw0 1.5v t s t h t s t h t s t h t pd t pd t pd 100% 50% 0% dv dd av dd 0.1 (lsb) (msb) (lsb) 1 2 3 4 5 6 7 8 9 10 11 12 r (red) in g (green) in b (blue) in (msb) (lsb) (msb) 330 330 330 b (blue) out av ss g (green) out av ss r (red) out av ss 37 38 39 40 41 42 43 44 45 46 47 48 5.1k av ss av dd 1k av ss 0.1f dv ss dv ss clock in 36 35 34 33 32 31 30 29 28 27 26 25 13 14 15 16 17 18 19 20 21 22 23 24 1.2v (bck) (gck) (rck) input code msb lsb 1 1 1 1 1 1 1 1 : 1 0 0 0 0 0 0 0 : 0 0 0 0 0 0 0 0 output voltage 1.2 v 0.6 v 0 v application circuits shown are typical examples illustrating the operation of the devices. sony cannot assume responsibility fo r any problems arising out of the use of these circuits or for any infringement of third party patent and other right due to same .
11 CXD2304R notes on operation how to select the output resistance the CXD2304R is a d/a converter of the current output type. to obtain the output voltage connect the resistance to the current output pins r0, g0 and b0. for specifications we have; output full scale voltage v fs =1.12 to 1.36 [v] output full scale current i fs =3.8 [ma] (typ.) calculate the output resistance value from the relation of v fs =i fs r out . also, 16 times resistance of the output resistance r out is connected to reference current pin iref. in some cases, however, this turns out to be a value that does not actually exist. in such a case a value close to it can be used as a substitute. here please note that v fs becomes v fs =v ref 16r out /r ir . v ref is the voltage set at the reference voltage pin vref and r out is the resistance connected to the current output pins ro, go and bo while r ir is connected to iref pin. increasing the resistance value can curb power consumption. on the other hand glitch energy and data settling time will inversely increase. set the most suitable value according to the desired application. phase relation between data and clock to obtain the expected performance as a d/a converter, it is necessary to set properly the phase relation between data and clock applied from the exterior. be sure to satisfy the provisions of the setup time (t s ) and hold time (t h ) as stipulated in the electrical characteristics. power supply and ground to reduce noise effects separate analog and digital systems in the device periphery. for power supply pins, both digital and analog, bypass respective grounds by using a ceramic capacitor of about 0.1 f, as close as possible to the pin. latch up digital power supply and analog power supply have to be common at the pcb power supply source. this is to prevent latch up due to voltage difference between av dd and dv dd pins when power supply is turned on. ro, go and bo pins the ro, go and bo pins are the inverted current output pins described in the pin description. the sums shown below become the constant value for any input data. a) the sum of the currents output form ro and ro b) the sum of the currents output form go and go c) the sum of the currents output form bo and bo however, the performances such as the linearity error of the inverted current output pin output current is not guaranteed. output full-scale voltage for the applications using the rgb signal, the color balance may be broken up when the no-adjusted output full-scale voltage is used.
12 CXD2304R latch up prevention the CXD2304R is a cmos ic which required latch up precautions. latch up is mainly generated by the lag in the voltage rising time of av dd (pins 43 to 46) and dv dd (pins 47 and 48), when power supply is on. 1. correct usage a. when analog and digital supplies are from different sources b. when analog and digital supplies are from a common source (i) (ii) 43 CXD2304R av ss av dd 44 45 46 33 av dd dv dd dv ss av ss cc 31 dv ss +5v +5v 30 47 48 digital ic dv dd 43 CXD2304R av ss 44 45 46 33 av dd dv dd dv ss av ss cc 31 dv ss +5v 30 47 48 digital ic dv dd 43 CXD2304R av ss 44 45 46 33 av dd dv dd dv ss av ss cc 31 dv ss +5v 30 47 48 digital ic dv dd
13 CXD2304R 2. example when latch up easily occurs a. when analog and digital supplies are from different sources b. when analog and digital supplies are from common source (i) (ii) 43 CXD2304R av ss av dd 44 45 46 33 av dd dv dd dv ss av ss cc 31 dv ss +5v +5v 30 47 48 digital ic dv dd 43 CXD2304R av ss 44 45 46 33 av dd dv dd dv ss av ss cc 31 dv ss +5v 30 47 48 digital ic dv dd av dd 43 CXD2304R av ss 44 45 46 33 av dd dv dd dv ss av ss c 31 dv ss +5v 30 47 48 digital ic dv dd av dd
14 CXD2304R example of representative characteristics 80 60 40 20 0 0.1m 1m 10m output frequency f o (hz) crosstalk ct (db) fig. 1. crosstalk 80 60 40 20 0 0.1m 1m 10m output frequency f o (hz) snr (difference between primary and secondary) (db) 1.27 1.26 0 25 25 75 ambient temperature ta ( c) output fullscale voltage v fs (v) fig. 3. ambient temperature vs. output full scale voltage 50 0 20 10 0 10k 1m output frequency f o (hz) power supply current i dd (ma) 10m 100k 400 200 0 200 400 output resistance r out ( ? ) glitch energy ge (pv s) fig. 5. output resistance vs. glitch energy 600 fig. 4. output frequency vs. power supply current fig. 2. snr (difference between primary component and secondary distortion) reference measurement condition and description av dd =3.3 v dv dd =3.3 v v ref =1.2 v r ir =5.1 k ? ( 16 r out in fig. 5 only) ta=25 c (except fig. 3) fig. 1, 2 refer to the measurement circuit. fig. 3 is input data=all 1 fig. 4 is input data=output of incremental counter.
sony code eiaj code jedec code package material lead treatment lead material package mass epoxy resin 42/copper alloy package structure 48pin lqfp (plastic) 9.0 0.2 ? 7.0 0.1 1 12 13 24 25 36 37 48 (0.22) 0.18 ?0.03 + 0.08 0.2g lqfp-48p-l01 p-lqfp48-7x7-0.5 (8.0) 0.5 0.2 0.127 ?0.02 + 0.05 a 1.5 ?0.1 + 0.2 0.1 solder plating note: dimension ? does not include mold protrusion. 0.1 0.1 0.5 0.2 0? to 10? detail a 0.13 m 0.5 s s b detail b : solder (0.18) (0.127) 0.18 ?0.03 + 0.08 0.127 ?0.02 +0.05 package outline unit : mm CXD2304R 15
16 CXD2304R sony corporation sony code eiaj code jedec code package material lead treatment lead material package mass epoxy resin copper alloy package structure 48pin lqfp (plastic) 9.0 0.2 ? 7.0 0.1 1 12 13 24 25 36 37 48 (0.22) 0.18 0.03 + 0.08 0.2g lqfp-48p-l01 p-lqfp48-7x7-0.5 (8.0) 0.5 0.2 0.127 0.02 + 0.05 a 1.5 0.1 + 0.2 0.1 palladium plating note: dimension ? does not include mold protrusion. 0.1 0.1 0.5 0.2 0 ? to 10 ? detail a 0.13 m 0.5 s s b detail b : palladium 0.127 0.04 0.18 0.03 package outline unit : mm

▲Up To Search▲

Price & Availability of CXD2304R

	To Download CXD2304R Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .