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參數(shù)資料
| 型號(hào)： | AD9483KS-140 |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | ADC |
| 英文描述： | Triple 8-Bit, 140 MSPS A/D Converter |
| 中文描述： | 3-CH 8-BIT FLASH METHOD ADC, PARALLEL ACCESS, PQFP100 |
| 封裝： | HEAT SINK, PLASTIC, MQFP-100 |
| 文件頁數(shù)： | 1/26頁 |
| 文件大小： | 319K |
| 代理商： | AD9483KS-140 |
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REV. A
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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
a
AD9483
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
Analog Devices, Inc., 1998
Triple 8-Bit, 140 MSPS
A/D Converter
FUNCTIONAL BLOCK DIAGRAM
8
T/H
QUANTIZER
AD9483
TIMING
R AIN
R AIN
G AIN
G AIN
B AIN
B AIN
ENCODE
ENCODE
DS
DS
VREF
OUT
RVREF
IN
GVREF
IN
BVREF
IN
V
CC
V
DD
GND
PD
I/P
OMS
CLKOUT
CLKOUT
D
B
B
7-0
D
B
A
7-0
D
G
B
7-0
D
G
A
7-0
D
R
B
7-0
D
R
A
7-0
8
T/H
QUANTIZER
8
T/H
QUANTIZER
CONTROL
+2.5V
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
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 cir-
cuit. The user provides only a +5 V power supply and an en-
code 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 sup-
port 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)
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 plas-
tic package (S-100) and is specified over the 0
°
C to +85
°
C
temperature range.
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