AL875 datasheet(4/34 Pages) ETC

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AL875

Preliminary version subject to change without notice

January 25, 2001

AL875

Triple High Speed, 8-bit Analog-to-Digital Converter

1.0 Features

• High speed 8-bit ADC up to 110MHz

conversion rate

• Support display resolution up to 1280x1024

at 60Hz refresh rate

• Low power dissipation (0.9W typical at

3.3V, 110MHz)

• 0.6~2.0V p-p analog input range

• 10k~1MHz CKREF locking range

• Full programmability via I2C interface

• Automatic screen position support

• Programmable clock phase adjustment

• TTL compatible digital inputs and outputs

• High impedance tri-state output

• Power-down mode

• Single 3.3 volt power with 5 volt tolerant I/O

• 100-pin 14x20 mm PQFP package

2.0 Applications

• LCD/PDP Monitors

• LCD Projectors

• Other Flat Panel Displays

• High-end Video/Graphics Processing

ADC/R

T/H

RIN

VRT

VRB

ADC/G

T/H

GIN

VRT

VRB

ADC/B

T/H

BIN

VRT

VRB

Output

Logic

ROUT<7:0>

Output

Logic

GOUT<7:0>

Output

Logic

BOUT<7:0>

/OE

IIC Interface

Control Logic

Digital

Logic

Circuits

HSYNC

VSYNC

CK REF

CKEXT

ADDR1/2

SDA

SCL

AL875-01a functional block diagram.vsd

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