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UPC659A

NEC
Part Number UPC659A
Manufacturer NEC
Description 8-BIT A/D CONVERTER FOR VIDEO PROCESSING WITH REFERENCE GENERATOR AND CLAMP CIRCUIT
Published Apr 17, 2005
Detailed Description DATA SHEET BIPOLAR ANALOG INTEGRATED CIRCUIT µPC659A 8-BIT A/D CONVERTER FOR VIDEO PROCESSING WITH REFERENCE GENERATOR...
Datasheet PDF File UPC659A PDF File

UPC659A
UPC659A

Overview
DATA SHEET BIPOLAR ANALOG INTEGRATED CIRCUIT µPC659A 8-BIT A/D CONVERTER FOR VIDEO PROCESSING WITH REFERENCE GENERATOR AND CLAMP CIRCUIT The µPC659A is a 8-bit A/D converter for video signal processing, the power consumption of which is lower than the µPC659.
The high speed and high quality bipolar processing technology has enabled fast conversion rate and high resolution to be achieved.
Conversion rate is up to 20 Msps (sampling per second) and linearity error within ± 0.
5 LSB while operating at low power consumption.
Wide variety of application can be realized in digital application field such as digital TV system and high speed facsimile.
Also, this IC includes sample and hold circuit, clamp circuit and reference voltage generator, which enable simple external circuit to be constructed.
The µPC659A and the µPC659 are different in the number of clock pulses till transformed data is output after analog signal is captured.
This should be taken into consideration when using the µPC659A instead of the µPC659.
For details, refer to the timing chart.
FEATURES • Resolution • Conversion rate • Power supply • Analog input voltage • Power consumption • Built-in circuit : 8-bit : 20 Msps : +5 V : 1.
0 Vp-p : 215 mW TYP.
: Sample and hold circuit Clamp circuit (Clamp voltage and clamp pulse must be supplied.
) Reference voltage generator (VRB = 2.
3 V, VRT = 3.
3 V TYP.
) • Differential non-linearity : ± 0.
5 LSB MAX.
ORDERING INFORMATION Part Number Package 24-pin plastic SOP (300 mil) µPC659AGS The information in this document is subject to change without notice.
Document No.
S10990EJ4V0DS00 (4th edition) Date Published July 1997 N Printed in Japan The mark shows major revised points.
© 1992, 1996 µPC659A BLOCK DIAGRAM VCL 7 3 Flash A/D convertor 5 5 Adder Latch 23 OVER 22 DB1 VIN 4 Clamp S/H 5 PCL 6 Sample and Hold Flash A/D convertor D/A + – 21 DB2 20 DB3 17 DB4 16 DB5 15 DB6 14 DB7 13 DB8 24 CLK 8 AVCC 1 VRT 10 VRB 5 AGND 18 DVCC 19 DGND Timing Generator 2 µPC...


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