HD49343NPHNP_15 Datasheet, PDF (1/23 Pages) Renesas Technology Corp – CDS/PGA & 12-bit A/D Converter

Preliminary Datasheet
HD49343NP/HNP
CDS/PGA & 12-bit A/D Converter
R19DS0068EJ0200
Rev.2.00
Jul 06, 2012
Description
The HD49343NP/HNP is a CMOS IC that provides CDS-PGA analog processing (CDS/PGA) suitable for CCD camera
digital signal processing systems together with a 12-bit A/D converter in a single chip.
Functions
 Correlated double sampling
 PGA
 Serial interface control
 12-bit ADC
 Operates using only the 3 V, ADC output
 Corresponds to switching mode of power dissipation and operating frequency
HD49343HNP : 200 mW, f_max: 36 MHz
HD49343NP : 120 mW, f_max: 25 MHz
 QFN 36-pin package
Features
 Suppresses the CCD reset noise by the correlated double sampling.
 High sensitivity can be achieved by 10 bit gray scale provided by PGA which can be set to –6 to 34 dB.
 PGA gain, S/H frequency response, pulse timing, etc., is achieved via a serial interface.
 High precision is provided by a 12-bit resolution A/D converter.
 Difference encoded gray code can be selected as an A/D output code. It is effective in suppression of solarization
(wave pattern). It is patented by Renesas.
Block Diagram
ADC_in
CDS_in
FBC
SHC
ADCLK
SP1
SP2
CDS
Timing
generator
PGA
12bit
ADC
Clamp
Differential ¹²
code
D0 to D11
PBLK
OBP
V_ref
Bias
Serial
comm
CS
Sdata
SCK
R19DS0068EJ0200 Rev.2.00
Jul 06, 2012
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