Datasheet Texas Instruments LM9822 — 数据表

LM9822 LM9822 3 Channel 42-Bit Color Scanner Analog Front End Literature Number: SNOS475 N LM9822 3 Channel 42-Bit Color Scanner Analog Front End
General Description
The LM9822 is a high performance Analog Front End (AFE) for
image sensor processing systems. It performs all the analog and
mixed signal functions (correlated double sampling, color specific gain and offset correction, and analog to digital conversion)
necessary to digitize the output of a wide variety of CIS and
CCD sensors. The LM9822 has a 14 bit 6MHz ADC. Key Specifications Features Applications 6 million pixels/s conversion rate
Digitally programmed gain and offset for red, green and blue
color balancing
Correlated Double Sampling for lowest noise from CCD
sensors
Compatible with CCD and CIS type image sensors
Internal Voltage Reference Generation
TTL/CMOS compatible input/output Output Data Resolution
Pixel Conversion Rate
Analog Supply Voltage
I/O Supply Voltage
Power Dissipation (typical) 14 Bits
6MHz
5VВ±5%
3.3VВ±10% or 5VВ±5%
375mW Color Flatbed Document Scanners
Color Sheetfed Scanners …