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HT82V842A Datasheet(PDF) 1 Page - Holtek Semiconductor Inc |
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HT82V842A Datasheet(HTML) 1 Page - Holtek Semiconductor Inc |
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1 / 18 page  HT82V842A 10-Bit 20MSPS CCD Analog Signal Processor Block Diagram Rev. 1.00 1 January 2, 2006 Features · Operating voltage: 2.7V~3.6V · Low power consumption: 70mW (Typ.) · Power down mode: less than 30mW · Accepts a direct signal input to ADC or PGA at 1.0 VPP (Typ.) · CCD signal input level: 1.1 V P-P (Max.) · 10-bit ADC (up to 20MHz) - DNL: ±0.6 LSB (Typ.) · Black level neutralizer, target setting: 16~127LSB · Built-in serial interface · Independent ADC input conversion clock and data output clock · Independent CDS and PGA gain control - CDS: -1.94/0/6/12dB - PGA: 0~24dB · Wide gain range: -1.94~36dB · High speed sample and hold circuit: pulse width 11ns (Min.) · 48-pin LQFP package S / H C L P C A P A D I N T i m i n g G e n e r a t o r S e r i a l R e g i s t e r O B P A D C L P / C C D C L P C S S C K S D A T A A D C K B L K D C C l a m p C C D C L P C C D I N C C D R E F I N A D C L P O B P D A C B a n d G a p C i r c u i t C o m p a r e B l a c k L e v e l R e g i s t e r 1 0 - B i t A D C 0 / 6 / 1 2 / 1 8 d B 0 ~ 6 d B ( 0 . 0 4 7 d B / S t e p ) P G A R o u g h P G A F i n e C D S - 1 . 9 4 / 0 / 6 / 1 2 d B O B C A P M O N O U T V D D V S S R E S E T S T B Y S H R S H D O U T C K V R N V C O M V R P D O 0 ~ D O 9 General Description The HT82V842A is a CMOS single-chip signal process- ing device for CCD area sensors. It consists of a clamp circuit, Correlated Double Sampler (CDS), Programma- ble Gain Amplifier (PGA), reference voltage generator, black level detection circuit, 20MHz 10-bit A/D converter (ADC), timing generator for internally required pulses, serial interface for internal function control and PGA gain control. |
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