AD9483KS140 Analog Devices, AD9483KS140 Datasheet

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AD9483KS140

Manufacturer Part Number
AD9483KS140
Description
QFP-100
Manufacturer
Analog Devices
Datasheet
a
GENERAL DESCRIPTION
The AD9483 is a triple 8-bit monolithic analog-to-digital
converter optimized for digitizing RGB graphics signals from
personal computers and workstations. Its 140 MSPS encode
rate capability and full-power analog bandwidth of 330 MHz
supports display resolutions of up to 1280 × 1024 at 75 Hz with
sufficient input bandwidth to accurately acquire and digitize
each pixel.
To minimize system cost and power dissipation, the AD9483
includes an internal 2.5 V reference and track-and-hold circuit.
The user provides only a 5 V power supply and an encode clock.
No external reference or driver components are required for
many applications. The digital outputs are three-state CMOS
outputs. Separate output power supply pins support interfacing
with 3.3 V or 5 V logic.
The AD9483’s encode input interfaces directly to TTL, CMOS,
or positive ECL logic and will operate with single-ended or
differential inputs. The user may select dual channel or single
channel digital outputs. The Dual Channel (demultiplexed)
REV. C
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties that
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective owners.
FEATURES
140 MSPS Guaranteed Conversion Rate
100 MSPS Low Cost Version Available
330 MHz Analog Bandwidth
1 V p-p Analog Input Range
Internal 2.5 V Reference
Differential or Single-Ended Clock Input
3.3 V/5.0 V Three-State CMOS Outputs
Single or Demultiplexed Output Ports
Data Clock Output Provided
Low Power: 1.0 W Typical
5 V Converter Power Supply
APPLICATIONS
RGB Graphics Processing
High Resolution Video
LCD Monitors and Projectors
Micromirror Projectors
Plasma Display Panels
Scan Converters
mode interleaves ADC data through two 8-bit channels at one-
half the clock rate. Operation in Dual Channel mode reduces
the speed and cost of external digital interfaces while allowing
the ADCs to be clocked to the full 140 MSPS conversion rate.
In the Single Channel mode, all data is piped at the full clock
rate to the Channel A outputs and the ADCs conversion rate is
limited to 100 MSPS. A data clock output is provided at the
Channel A output data rate for both Dual Channel or Single
Channel output modes.
Fabricated in an advanced BiCMOS process, the AD9483 is
provided in a space-saving 100-lead MQFP surface-mount
plastic package (S-100) and is specified over the 0°C to 85°C
temperature range.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
ENCODE
ENCODE
G AIN
G AIN
R AIN
R AIN
B AIN
B AIN
DS
DS
FUNCTIONAL BLOCK DIAGRAM
VREF
2.5V
OUT
TIMING
Triple 8-Bit, 140 MSPS
RVREF
© 2004 Analog Devices, Inc. All rights reserved.
T/H
T/H
T/H
IN
GVREF
IN
AD9483
QUANTIZER
QUANTIZER
QUANTIZER
BVREF
IN
A/D Converter
CONTROL
V
CC
8
8
8
V
DD
AD9483
GND
www.analog.com
D
D
D
D
D
D
CLKOUT
CLKOUT
OMS
I/P
PD
R
R
G
G
B
B
A
B
A
B
A
B
7-0
7-0
7-0
7-0
7-0
7-0

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