AD AD9972BBCZ

Dual-Channel, 14-Bit, CCD Signal
Processor with Precision Timing™ Core
AD9972
FEATURES OF EACH CHANNEL
GENERAL DESCRIPTION
1.8 V analog and digital core supply voltage
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, 40 MHz analog-to-digital converter (ADC)
Black level clamp with variable level control
Complete on-chip timing generator
Precision Timing core with 400 ps resolution @ 40 MHz
On-chip 3 V horizontal and RG drivers
100-lead, 9 mm × 9 mm, 0.8 mm pitch, CSP_BGA package
Internal LDO regulator circuitry
The AD9972 is a highly integrated, dual-channel CCD signal
processor for high speed digital video camera applications. Each
channel is specified at pixel rates of up to 40 MHz. The AD9972
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 approximately 400 ps resolution at 40 MHz operation.
Each analog front end includes black level clamping, CDS, VGA,
and a 40 MSPS, 14-bit ADC. The timing driver provides the high
speed CCD clock drivers for the RG_A, RG_B, H1_A to H4_A,
and H1_B to H4_B outputs. A 3-wire serial interface is used to
program each channel of the AD9972.
APPLICATIONS
Professional HDTV camcorders
Professional/high end digital cameras
Broadcast cameras
Industrial high speed cameras
Available in a space-saving, 9 mm × 9 mm, CSP_BGA package,
the AD9972 is specified over an operating temperature range of
−25°C to +85°C.
FUNCTIONAL BLOCK DIAGRAM
REFT_A REFB_A
REFT_B REFB_B
VREF_A
VREF_B
AD9972
14
CDS
CCDIN_A
DOUT_A
ADC
VGA
6dB ~ 42dB
–3, 0, +3, +6dB
CLAMP
CLAMP
6dB ~ 42dB
–3, 0, +3, +6dB
CDS
1.8V OUTPUT
LDO A
1.8V OUTPUT
LDO B
RG_A
RG_B
H1_A TO H4_A
H1_B TO H4_B
14
DOUT_B
ADC
VGA
INTERNAL CLOCKS
PRECISION
TIMING
CORE
4
4
CLI_A
CLI_B
HORIZONTAL
DRIVERS
SYNC
GENERATOR
SCK_A
INTERNAL
REGISTERS
HD_A VD_A HD_B VD_B
SL_A
SDATA_A SL_B
SCK_B
SDATA_B
05866-001
CCDIN_B
Figure 1.
For more information on the AD9772, contact Analog Devices, Inc. at: [email protected]
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
©2006 Analog Devices, Inc. All rights reserved.
AD9972
NOTES
©2006 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
D05866F-0-6/06(SpA)
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