HB7121B

Electronics Industries Co., Ltd.

CMOS IMAGE SENSOR

System IC Division

With 8-bit ADC

This document is a general product description and is subject to change without notice. Hyundai Electronics does not assume any

responsibility for use of circuits described. NO patent licenses are implied.

DA21991011R_1.0

- 1 -

1999 Hyundai System IC Division

PRELIMINARY

DESCRIPTION

HB7122B is a highly integrated single chip CMOS B/W image sensor using Hyundai 0.5um CMOS process

developed for image application to realize high efficiency photo sensor. The sensor has 414X314 pixels total,

and 400X300 pixels effective. Each pixel is high photo sensitive, small size active pixel element that converts

photons to analog voltage signal. The sensor has three on-chip 8 bit Digital to Analog Convert (DAC) and 414

comparators to digitize the pixel output. The three on-chip 8 bit DAC can be used for independent

gain

control. Hyundai proprietary on-chip Correlated Double Sampling (CDS) circuit can reduce Fixed Pattern

Noise (FPN) dramatically. The whole 8 bit digital B/W raw data is directly available on the package pins and

just a few control signals are needed for whole chip control, so it is very ease to configure a system using the

sensor.

FEATURES

l 400 x 300 pixels resolution

l 8um x 8um square pixel

l Built-in Automatic Gain Control (AGC)

l High efficiency photo sensors

l 48 pin CLCC

l Integrated 8-bit ADC for direct digital output

l Anti-blooming circuit

l Low power 3.3V operation (5V tolerant I/O)

l Flexible exposure time control

l Integrated pan control and window sizing

l Integrated on-chip timing and drive control

l Clock speed up to 15MHz

l 1/4" optical format

l Programmable frame rate and synchronous format

TECHNICAL SPECIFICATION

FUNCTIONAL BLOCK DIAGRAM

Pixel resolution

402x302

Pixel size

Fill factor

30%

Format

CIF

Sensitivity

8.0V/luxžsec

Supply voltage for analog

3.3V

Supply voltage for digital

3.3V

Supply voltage for 5V tolerant input

5.0V

Power Consumption

TBD@15MHz

Operating temperature

0~40 Centigrade

Technology

0.5um 3metal CMOS

Pixel Array

ADC Block

Line Buffer

I