AD AD9970

14-Bit CCD Signal Processor with
Precision Timing™ Generator
AD9970
FEATURES
GENERAL DESCRIPTION
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 core with 240 ps resolution @ 65 MHz
On-chip, 3 V horizontal and RG drivers
5 mm × 5 mm, 32-lead LFCSP_VQ
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,
and a 65 MSPS, 14-bit ADC. The timing driver provides the high
speed CCD clock drivers for RG, HL, and H1 to H4. Operation
is programmed using a 3-wire serial interface.
APPLICATIONS
Packaged in a space-saving 5 mm × 5 mm, 32-lead LFCSP_VQ,
the AD9970 is specified over an operating temperature range of
−25°C to +85°C.
Professional HDTV camcorders
Professional/high end digital cameras
Broadcast cameras
Industrial high speed cameras
High speed data acquisition systems
For more information about the AD9970, contact Analog Devices
via email at [email protected]
FUNCTIONAL BLOCK DIAGRAM
REFT REFB
AD9970
VREF
–3, 0, +3, +6dB
CDS
CCDIN
6dB TO 42dB
TCLKP
TCLKN
14-BIT
ADC
VGA
REDUCED
RANGE
LVDS OUTPUT
CLAMP
DOUT0P
DOUT0N
DOUT1P
DOUT1N
INTERNAL CLOCKS
RG
HL
4
HORIZONTAL
DRIVERS
H1 TO H4
PRECISION
TIMING
GENERATOR
SL
INTERNAL
REGISTERS
SCK
SDATA
HD
VD
CLI
05770-001
SYNC
GENERATOR
Figure 1.
Rev. SpA
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: 781.461.3113 ©2005–2007 Analog Devices, Inc. All rights reserved.
AD9970
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)
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