AD9925BBCZ datasheet(1/96 Pages) AD

tên linh kiện	AD9925BBCZ

Giải thích chi tiết về linh kiện	CCD Signal Processor with Vertical Driver and Precision Timing Generator

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CCD Signal Processor with Vertical Driver

and Precision Timing ™ Generator

AD9925

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 that may result from its use.

Specifications subject to change without notice. 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.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

www.analog.com

Fax: 781.326.8703

FEATURES

Integrated 10-channel V-driver

Register-compatible with the AD9991 and AD9995

3-field (6-phase) vertical clock support

2 additional vertical outputs for advanced CCDs

Complete on-chip timing generator

Precision Timing core with <600 ps resolution

Correlated double sampler (CDS)

6 dB to 42 dB 10-bit variable gain amplifier (VGA)

12-bit 36 MHz ADC

Black level clamp with variable level control

On-chip 3 V horizontal and RG drivers

2-phase and 4-phase H-clock modes

Electronic and mechanical shutter support

On-chip driver for external crystal

On-chip sync generator with external sync input

8 mm × 8 mm CSPBGA package with 0.65 mm pitch

APPLICATIONS

Digital still cameras

Digital video camcorders

CCD camera modules

GENERAL DESCRIPTION

The AD9925 is a complete 36 MHz front end solution for digi-

tal still camera and other CCD imaging applications. Based on

the AD9995 product, the AD9925 includes the analog front end

and a fully programmable timing generator (AFETG), combined

with a 10-channel vertical driver (V-driver). A Precision Timing

core allows adjustment of high speed clocks with approximately

600 ps resolution at 36 MHz operation.

The on-chip V-driver supports up to 10 channels for use with

3-field (6-phase) CCDs. Two additional vertical outputs can be

used with CCDs that contain advanced video readout modes.

Voltage levels of up to +15 V and −8 V are supported.

The analog front end includes black level clamping, CDS, VGA,

and a 12-bit ADC. The timing generator and V-driver provide

all the necessary CCD clocks: RG, H-clocks, vertical clocks,

sensor gate pulses, substrate clock, and substrate bias control.

The internal registers are programmed using a 3-wire serial

interface.

Packaged in an 8 mm × 8 mm CSPBGA, the AD9925 is speci-

fied over an operating temperature range of −25°C to +85°C.

FUNCTIONAL BLOCK DIAGRAM

AD9925

CDS

VGA

CLAMP

12-BIT

ADC

DCLK

MSHUT

STROBE

CLI

DOUT

VREF

6dB TO 42dB

HORIZONTAL

DRIVERS

VERTICAL

TIMING

CONTROL

RG

H1 TO H4

XV1 TO XV8

XSG1 TO XSG6

REFT REFB

PRECISION

TIMING

GENERATOR

SYNC

GENERATOR

INTERNAL CLOCKS

VSUB

SUBCK

HD

VD SYNC

INTERNAL

REGISTERS

CCDIN

V-DRIVER

0dB, –2dB, –4dB

CLO

SDI

SCK

SL

RSTB

12

SUBCK

8

6

V1, V2

V3A, V3B

V4, V6

V5A, V5B

V7, V8

10

4

Figure 1.

Số phần tương tự - AD9925BBCZ

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
Analog Devices	AD9925	1Mb / 96P	CCD Signal Processor with Vertical Driver and Precision Timing Generator REV. A

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	AD9923A	1Mb / 84P	CCD Signal Processor with V-Driver and Precision Timing Generator REV. A
	AD9925	1Mb / 96P	CCD Signal Processor with Vertical Driver and Precision Timing Generator REV. A
	AD9937	416Kb / 44P	CCD Signal Processor with Precision Timing Generator REV. 0
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