Datasheet > XRD98L61_01

XRD98L61_01

更新时间： 2024-11-09 03:13:51

品牌	Logo	应用领域
艾科嘉 - EXAR		/
页数	文件大小	规格书
38页	396K
描述
CCD Image Digitizers with CDS, PGA and 12-Bit A/D

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XRD98L61_01 数据手册

XRD98L61

CCD Image Digitizers with

CDS, PGA and 12-Bit A/D

May 2001-2

FEATURES

• 12-Bit Resolution ADC

• 0.1mA Stand-by Mode Current

• Three-state Digital Outputs

• 2,000V ESD Protection

• 48-Pin TQFP Package

• 20MHz Sampling Rate

• 10-Bit Programmable Gain: 0dB to 36dB PGA

• Digitally Controlled Offset-Calibration with Pixel

Averager and Hot Pixel Clipper

• Widest Black Level Calibration Range at

Maximum Gain

APPLICATIONS

• Mega-pixel Digital Still Cameras

• DNS Filter Removes Black Level Digital Noise

• Manual Control of Offset DAC via Serial Port for

use with High-speed Scanners

• Digital Camcorders

• 3-CCD Professional/Broadcast Camera

• Line Scan Cameras

• 1ns/step Programmable Aperture Delay on SPIX,

SBLK and ADCLK Sampling Clocks

• Single 2.7V to 3.6V Power Supply

• Optimized Power Consumption down to 125mW

with External Resistor

• PC Video Cameras

• CCTV/Security Cameras

• Industrial/Medical Cameras

• 2D Bar Code Readers

• High Speed Scanners

• Digital Copiers

• Low Power for Battery Operation

• Two Serially Controlled 8-Bit D/A Converters

GENERAL DESCRIPTION

The XRD98L61 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), 10-bit digitally Program-

mable Gain Amplifier (PGA), 12-bit Analog-to-Digital

Converter (ADC) and improved digitally controlled

black level auto-calibration circuitry with program-

mable pixel averager, hot pixel clipper, and a DNS

filter.

The PGA is digitally controlled with 10-bit resolution on

a linear dB scale, resulting in a gain range of 0dB to

36dB with 0.047dB per LSB of the gain code.

The auto calibration circuit compensates for any inter-

nal offset of the XRD98L61 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. Readback of the serial data regis-

ters is available from the digital output bus.

Two 8-bit serial controlled digital-to-analog converter

(DACs) are provided to control external analog signals

(Iris, Focus, Flash, etc.)

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 XRD98L61 has direct access to the ADC and

PGA inputs for digitizing other analog signals.

The XRD98L61 is packaged in 48-lead TQFP to reduce

space and weight, and is suitable for hand-held and

portable applications.

ORDERING INFORMATION

Operating

Maximum

Part No.

Package

Temperature Range

Power Supply

Sampling Rate

XRD98L61AIV

48-Pin TQFP

-40°C to 85°C

3.0V

20 MSPS

Rev. 2.00

EXAR Corporation, 48720 Kato Road, Fremont, CA 94538 • (510) 668-7000 • FAX (510) 668-7017 • www.exar.com

12 3 4 5 6 7...38

中文翻译

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与XRD98L61_01相关器件

型号	品牌	获取价格	描述	数据表
XRD98L61AIV	EXAR	获取价格	CCD Image Digitizers with CDS, PGA and 12-Bit A/D
XRD98L61AIV-F	EXAR	获取价格	Consumer Circuit, PQFP48, 7 X 7 MM, 1.40 MM HEIGHT, GREEN, TQFP-48
XRD98L62	EXAR	获取价格	CCD Image Digitizers with CDS, PGA and 12-Bit A/D
XRD98L62ACV	EXAR	获取价格	CCD Image Digitizers with CDS, PGA and 12-Bit A/D
XRD98L62ACV-F	EXAR	获取价格	Consumer Circuit, PQFP48, 7 X 7 MM, 1.40 MM HEIGHT, GREEN, TQFP-48
XRD98L63	EXAR	获取价格	CCD Image Digitizers with CDS, PGA and 12-Bit A/D
XRD98L63AIV	EXAR	获取价格	CCD Image Digitizers with CDS, PGA and 12-Bit A/D
XRD98L63AIV-F	EXAR	获取价格	Consumer Circuit, PQFP48, 7 X 7 MM, 1.40 MM HEIGHT, GREEN, TQFP-48
XRDAN27	EXAR	获取价格	Compensating for Zero Order Hold Effects
XRDAN28	EXAR	获取价格	Frequency Response Effects of Overampling and Averaging on A/D Output Data

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