AD AD9973

Dual-Channel, 14-Bit CCD Signal
Processor with Precision Timing™ Core
AD9973
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,
+6 dB gain
6 dB to 42 dB, 10-bit variable gain amplifier (VGA)
14-bit, 65 MHz analog-to-digital converter
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
6 mm × 6 mm, 84-ball CSP_BGA package
The AD9973 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 65 MHz, and
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 AD9973 also
contains a reduced range LVDS interface for the dual-channel
data outputs.
Each analog front end (AFE) includes black level clamping,
CDS, VGA, and a 65 MSPS, 14-bit analog-to-digital converter.
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
Professional HDTV camcorders
Professional, high-end digital cameras
Broadcast cameras
Industrial high speed cameras
Packaged in a space-saving 6 mm × 6 mm, 84-ball CSP_BGA,
the AD9973 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
AD9973
CCDINP_A
CDS
CCDINM_A
ADC
VGA
–3dB, 0dB,
+3dB, +6dB
6dB ~ 42dB
CLAMP
CLAMP
CCDINP_B
CDS
–3dB, 0dB,
+3dB, +6dB
LDO_OUT_B
1.8V OUTPUT
1.8V OUTPUT
LDO A
LDO B
RG_A
RG_B
HLA, H1A TO H4A
HLB, H1B TO H4B
ADC
INTERNAL CLOCKS
PRECISION
TIMING
CORE
5
CLI_A
CLI_B
HORIZONTAL
DRIVERS
SYNC
GENERATOR
5
HL_A HL_B
INTERNAL
REGISTERS
HD_A VD_A HD_B VD_B
SL_A SDATA_A SL_B SDATA_B
SCK_A
SCK_B
06055-001
LDO_OUT_A
6dB ~ 42dB
VGA
CCDINM_B
REDUCED
RANGE
LVDS
INTERFACE
DOUT0P_A
DOUT0N_A
DOUT1P_A
DOUT1N_A
TCLKP_A
TCLKN_A
DOUT0P_B
DOUT0N_B
DOUT1P_B
DOUT1N_B
TCLKP_B
TCLKN_B
Figure 1.
For more information about the AD9973, contact Analog Devices, Inc. via email 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 ©2006–2007 Analog Devices, Inc. All rights reserved.
AD9973
NOTES
©2006–2007 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
D06055F-0-3/07(SpA)
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