Description

The CXD3172AR is a signal processor LSI for Ye,

Cy, Mg and G single CCD color cameras. In addition

to basic camera signal processing functions, it

includes an AE/AWB detection circuit, a sync signal

generation circuit and an external sync circuit, etc.

This chip also has a built-in microcontroller to realize

basic camera functions such as AE/AWB without an

external microcomputer.

Features

• Generates timing pulses to drive the single CCD

image sensor

Built-in H/V driver for CCD image sensor

Luminance/chroma signal processing

• Supports NTSC/PAL modes

• Supports 510H/760H system CCD image sensor

• Built-in 10-bit A/D converter

• Built-in EVR (3ch)

• Analog composite output

— Built-in digital encoder

— 10-bit D/A converter output

• Digital output

— Conforms to ITU-REC656/ITU-REC601 format

• Supports external sync functions

— Sync separation circuit

— Phase comparator

• AE/AWB detector

• Block control functions with a built-in microcontroller

— AE/AWB/CLAMP/Blemish detection and

compensation

• Peripheral IC control function

— EVR/EEPROM communication control

• Serial communication function (2 mode selection)

— Microcomputer communication/start-stop

synchronous system communication (RS232C)

• Auto blemish detection and compensation function

• Mirror function