HB7121B
Semiconductor Inc.
System IC SBU
CMOS IMAGE SENSOR
With 8-bit ADC
DESCRIPTION
HB7121B is a highly integrated single chip CMOS B/W image sensor using Hynix 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. Hynix 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
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400 x 300 pixels resolution
8um x 8um square pixel(with Microlens)
High efficiency photo sensors
Integrated 8-bit ADC for direct digital output
Low power 3.3V operation (5V tolerant I/O)
Integrated pan control and window sizing
Clock speed up to 15MHz
Programmable frame rate and synchronous format
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Full function control through standard I
2
C bus
Built-in Automatic Gain Control (AGC)
48 pin CLCC
Anti-blooming circuit
Flexible exposure time control
Integrated on-chip timing and drive control
1/4" optical format
TECHNICAL SPECIFICATION
Pixel resolution
Pixel size
Fill factor(without Microlens)
Format
Sensitivity
Supply voltage for analog
Supply voltage for digital
Supply voltage for 5V tolerant input
Power Consumption
Operating temperature
Technology
402x302
30%
CIF
8.0V/luxžsec
3.3V
3.3V
5.0V
FUNCTIONAL BLOCK DIAGRAM
Decoder/Pixel Driver
8x8um
2
Control Register & Logic
I
2
C
Pixel Array
ADC Block
Line Buffer
TBD@15MHz
0~40 Centigrade
0.5um 3metal CMOS
This document is a general product description and is subject to change without notice. Hynix Semiconductor does not assume any
responsibility for use of circuits described. NO patent licenses are implied.
DA21000601R_1.1
-1 -
2001 Hynix System IC SBU
HYNIX [ HYNIX SEMICONDUCTOR ]
