AL875
High Speed Triple 8-bit ADC
Applications
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LCD/PDP Monitors
LCD Projectors
Other Flat Panel Displays
High-end Video/Graphics Processing
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High speed 8-bit ADC up to 110MHz encode rate
Support display resolution up to 1280x1024 at 60Hz
Low power dissipation (0.8W typical at 3.3V,
110MHz)
0.6~2.0V p-p analog input range
10k~1MHz HSYNC locking range
Full programmability via I
2
C interface
Support automatic screen positioning
Support automatic 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
Description
The AL875 is a high-speed triple 8-bit
monolithic analog-to-digital converter
(ADC) designed for digitizing RGB
graphics/video signal or other applications.
Its 110 MHz conversion rate can support
display resolution up to 1280x1024 at
60Hz.
ADDR1/2
SDA
SCL
CKEXT
IIC Interface
&
Control Logic
HSYNC
Digital
Logic
Circuits
VSYNC
CK REF
CP
RIN
VRT
VN
VRB
T/H
ADC/R
Output
Logic
ROUT<7:0>
GIN
VRT
VN
VRB
T/H
ADC/G
Output
Logic
GOUT<7:0>
BIN
VRT
VN
VRB
T/H
ADC/B
Output
Logic
BOUT<7:0>
/OE
AL875-01a functional block diagram.vsd
A
VER
L
OGIC
T
ECHNOLOGIES
, I
NC
. E-mail: sales_usa@averlogic.com
A
VER
L
OGIC
T
ECHNOLOGIES
, C
ORP
. E-mail: sales@averlogic.com.tw
URL: www.averlogic.com
URL: www.averlogic.com.tw
February 25, 2003
AVERLOGIC [ AVERLOGIC TECHNOLOGIES INC ]
