AD9824 Ver la hoja de datos (PDF) - Analog Devices

Número de pieza

componentes Descripción

Fabricante

AD9824

Complete 14-Bit 30 MSPS CCD Signal Processor

Analog Devices 

AD9824

APPLICATIONS INFORMATION

The AD9824 is a complete analog front end (AFE) product for

digital still camera and camcorder applications. As shown in

Figure 32, the CCD image (pixel) data is buffered and sent to

the AD9824 analog input through a series input capacitor.

The AD9824 performs the dc restoration, CDS, gain adjust-

ment, black level correction, and analog-to-digital conversion.

The AD9824’s digital output data is then processed by the

image processing ASIC. The internal registers of the AD9824—

used to control gain, offset level, and other functions—are

programmed by the ASIC or microprocessor through a 3-wire

serial digital interface. A system timing generator provides the

clock signals for both the CCD and the AFE.

CCD

VOUT

V-DRIVE

BUFFER

0.1␮F

AD9824

CCDIN

ADCOUT

REGISTER-

DATA

DIGITAL

OUTPUTS

SERIAL

INTERFACE

CCD

TIMING

CDS/CLAMP

TIMING

TIMING

GENERATOR

DIGITAL IMAGE

PROCESSING

ASIC

Figure 32. System Applications Diagram

–20–

REV. 0

Share Link: