ANALOG DEVICES AD9970 Service Manual

14-Bit CCD Signal Processor with

www.BDTIC.com/ADI

FEATURES

1.8 V analog and digital core supply voltage
Serial data link with reduced range LVDS outputs
Correlated double sampler (CDS) with −3 dB, 0 dB, +3 dB,

and +6

dB gain
6 dB to 42 dB, 10-bit variable gain amplifier (VGA)
14-bit, 65 MHz ADC
Black level clamp with variable level control
Complete on-chip timing generator
Precision Timing c
On-chip, 3 V horizontal and RG drivers
5 mm × 5 mm, 32-lead LFCSP_VQ

APPLICATIONS

Professional HDTV camcorders
Professional/high end digital cameras
Broadcast cameras
Industrial high speed cameras
High speed data acquisition systems

ore with 240 ps resolution @ 65 MHz

Precision Timing™ Generator

AD9970

GENERAL DESCRIPTION

The AD9970 is a highly integrated CCD signal processor for
high speed digital video camera applications. Specified at pixel
rates of up to 65 MHz, the AD9970 consists of a complete analog
front end with analog-to-digital conversion combined with a
programmable timing driver. The Precision Timing core allows
adjustment of high speed clocks with 240 ps resolution at
65 MHz operation. The AD9970 also contains a reduced range
LVDS interface for data outputs.

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

nd a 65 MSPS, 14-bit ADC. The timing driver provides the high

a
speed CCD clock drivers for RG, HL, and H1 to H4. Operation
is programmed using a 3-wire serial interface.

Packaged in a space-saving 5 mm × 5 mm, 32-lead LFCSP_VQ,
th

e AD9970 is specified over an operating temperature range of

−25°C to +85°C.

For more information about the AD9970, contact Analog Devices

ia email at [e-mail].

v

FUNCTIONAL BLOCK DIAGRAM

REFT REFB

VREF

14-BIT

ADC

CLAMP

INTERNAL CL OCKS

PRECISION

TIMING

GENERATOR

SYNC

GENERATOR

HD VD

Figure 1.

CLI

CCDIN

RG

H1 TO H4

–3, 0, +3, + 6dB

CDS

HL

4

6dB TO 42d B

HORIZONTAL

DRIVERS

VGA

AD9970

REDUCED

RANGE

LVDS OUTPUT

INTERNAL

REGISTERS

TCLKP
TCLKN

DOUT0P
DOUT0N

DOUT1P
DOUT1N

SL
SCK
SDATA

05770-001

Rev. SpA

Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Anal og Devices for its use, nor for any infringements of patents or ot her
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: [phone] www.analog.com
Fax: [phone] ©2005–2007 Analog Devices, Inc. All rights reserved.

AD9970

www.BDTIC.com/ADI

NOTES

©2005–2007 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
D05770-0-3/07(SpA)

Rev. SpA | Page 2 of 2