CS7622

Features:

·13-Bit A/D Conversion Using DRX™ Technology
·Backlight Compensation
·Supports Full Scale Analog Input Voltage Ranges from 300 mV to 1 V in 100 mV
·ncrements
·High Resolution Output Mode
·Low Resolution (Preview) Output Mode for LCD Driver
·Integrated Correlated Double Sampler
·Digital Black Level Clamp
·Digital Outputs Selectable for 13, 12, or 10 Bits
·Low Power Consumption
·Power Down Mode
·High Speed Serial Interface
·Supports a Large Variety of Clock Input Frequencies
·Low power mode option


Pinout




Specifications

Parameter	Symbol	Min	Max	Unit
Power Supply Voltage	VDDA, VDDD	-0.3	6.0	V
Digital Input Voltage Range		GNDD-0.3	VDDD + 0.3	V
Analog Input Voltage - AIN only	AIN	GNDA-(0.3)	VDDA+0.3	V
Input Current (except supply pins)			10	mA
Ambient Temperature Range		-	+70	°C
Lead Solder Temperature (10 s duration)		-	+260	°C
Storage Temperature Range		-65	+150	°C

Description

The CS7622 is a low-power analog front-end processor for interline or frame transfer CCD imagers. Main applications include digital still image cameras and video cameras.

The architecture includes a correlated double sampler, black level clamp and a 13-bit A/D conversion module using patented DRX technology.

CS7622 Chip parameters can be programmed using a high speed 4-wire asynchronous digital interface.

CS7622 outputs digitized CCD data in either 13-bit, 12- bit or 10-bit format. 10-bit outputs are generated from the 13-bit A/D output by a programmable companding curve.