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XRD98L59AIG Datasheet

  • XRD98L59AIG

  • CCD Image Digitizers with CDS, PGA and 10-Bit A/D

  • 37頁

  • EXAR   EXAR

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XRD98L59
CCD Image Digitizers with
CDS, PGA and 10-Bit A/D
January 2001-2
FEATURES
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10-bit Resolution ADC
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20MHz Sampling Rate
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Programmable Gain: 6dB to 38dB PGA
(2x to 80x)
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Improved Digitally Controlled Offset-Calibration
with Pixel Averager and Hot Pixel Clipper
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DNS Filter Removes Black Level Digital Noise
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Widest Black Level Calibration Range at
Maximum Gain
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Manual Control of Offset DAC via Serial Port for
Use with High Speed Scanners
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2ns/step Programmable Aperture Delay on SPIX
and SBLK
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Single 2.7V to 3.6V Power Supply
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Low Power for Battery Operation:120mW @ V
DD
=3V
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5碌A(chǔ) Typical Stand By Mode Current
Three-State Digital Outputs
2,000V ESD Protection
28-pin TSSOP Package
APPLICATIONS
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Digital Still Cameras
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Digital Camcorders
PC Video Cameras
CCTV/Security Cameras
Industrial/Medical Cameras
2D Bar Code Readers
High Speed Scanners
Digital Copiers
GENERAL DESCRIPTION
The XRD98L59 is a complete low power CCD Image
Digitizer for digital, motion and still cameras. The
product includes a high bandwidth differential Corre-
lated Double Sampler (CDS), 8-bit digitally Program-
mable Gain Amplifier (PGA), 10-bit Analog-to-Digital
Converter (ADC) and improved digitally controlled
black level auto-calibration circuitry with pixel averager
hot pixel clipper, and a DNS filter.
The Correlated Double Sampler (CDS) subtracts the
CCD output signal black level from the video level.
Common mode signal and power supply noise are
rejected by the differential CDS input stage.
The PGA is digitally controlled with 8-bit resolution on
a linear dB scale, resulting in a gain range of 6dB to
38dB with 0.125dB per LSB of the gain code.
The auto calibration circuit compensates for any inter-
nal offset of the XRD98L59 as well as black level offset
from the CCD.
The PGA and black level auto-calibration are con-
trolled through a simple 3-wire serial interface. The
timing circuitry is designed to enable users to select a
wide variety of available CCD and image sensors for
their applications.
The XRD98L59 has direct access to the ADC input for
digitizing other analog signals. The XRD98L59 is
packaged in 28-lead surface mount TSSOP to reduce
space and weight, and is suitable for hand-held and
portable applications.
ORDERING INFORMATION
Operating
Temperature Range Power Supply
-40擄C to 85擄C
3.0V
Maximum
Sampling Rate
20 MSPS
Part No.
XRD98L59AIG
Package
28-Lead TSSOP
Rev. 2.00
EXAR
Corporation, 48720 Kato Road, Fremont, CA 94538
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(510) 668-7000
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FAX (510) 668-7017
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www.exar.com

XRD98L59AIG 產(chǎn)品屬性

  • XRD98L59

  • 50

  • 集成電路 (IC)

  • 數(shù)據(jù)采集 - 模擬前端 (AFE)

  • -

  • 10

  • 1

  • -

  • 2.7 V ~ 3.6 V

  • 2.7 V ~ 3.6 V

  • 28-TSSOP（0.173"，4.40mm 寬）

  • 28-TSSOP

  • 管件

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