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CXD2312R

Sony Corporation
Part Number CXD2312R
Manufacturer Sony Corporation
Description 9-bit 20MSPS Video A/D Converter
Published Mar 27, 2005
Detailed Description CXD2312R 9-bit 20MSPS Video A/D Converter Description The CXD2312R is a 9-bit CMOS A/D converter for video applications....
Datasheet PDF File CXD2312R PDF File

CXD2312R
CXD2312R

Overview
CXD2312R 9-bit 20MSPS Video A/D Converter Description The CXD2312R is a 9-bit CMOS A/D converter for video applications.
This IC is ideally suited for the A/D conversion of video signals in TVs, VCRs, camcorders, etc.
Features • Resolution: 9-bit ±0.
5 LSB (D.
L.
E.
) • Maximum sampling frequency: 20MSPS • Low power consumption: 130mW (at 20MSPS typ.
) (Not including reference current) • TTL compatible input • Tri-state TTL compatible output (DVDD = 3.
3V) • Low input capacitance • Reference impedance: 300Ω (typ.
) 48 pin LQFP (Plastic) Structure Silicon gate CMOS IC Absolute Maximum Ratings (Ta = 25°C) • Supply voltage VDD 7 V • Reference voltage VRT, VRB VDD + 0.
5 to VSS – 0.
5 V • Input voltage (analog) VIN VDD + 0.
5 to VSS – 0.
5 V • Input voltage (digital) VIH, VIL VDD + 0.
5 to VSS – 0.
5 V • Output voltage (digital) VOH, VOL VDD + 0.
5 to VSS – 0.
5 V • Storage temperature Tstg –55 to +150 °C Recommended Operating Conditions • Supply voltage AVDD, AVSS 5.
0 ± 0.
25 DVDD, DVSS 3.
0 to 5.
25 | DVSS – AVSS | 0 to 100 • Reference input voltage VRB More than 1.
8 VRT to AVDD – 0.
4 • Analog input VIN More than 1.
8Vp-p • Clock pulse width TPW1 25 (min.
) TPW0 25 (min.
) • Operating ambient temperature Topr –20 to + 75 V V mV V V ns ns °C Sony reserves the right to change products and specifications without prior notice.
This information does not convey any license by any implication or otherwise under any patents or other right.
Application circuits shown, if any, are typical examples illustrating the operation of the devices.
Sony cannot assume responsibility for any problems arising out of the use of these circuits.
–1– E94Z29C79-PS CXD2312R Block Diagram AVSS 27 28 36 AVDD 18 26 VIN 39 + + – ×8 Sense Amp Coarse Correction & Latch 12 D8 11 D7 10 D6 9 D5 8 D4 VRT 29 VRT 30 DAC Coarse Comparate & Encode Fine Comparate & Encode Fine Latch Calibration Unit VRB 34 VRB 35 Sense Amp 5 D3 4 D2 3 D1 2 D0 (LSB) 21 MINV 20 LINV 19 TESTMODE CLK 22 CE 23 OE 24 Timing Gen 41 CAL ...


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