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AD9978 Datasheet(PDF) 1 Page - Analog Devices

Part No. AD9978
Description  Dual-Channel, 14-Bit CCD Signal Processor with Precision Timing Core
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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AD9978 Datasheet(HTML) 1 Page - Analog Devices

   
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Dual-Channel, 14-Bit CCD Signal
Processor with Precision Timing Core
AD9978
Rev. SpA
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
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
©2007 Analog Devices, Inc. All rights reserved.
FEATURES
Dual AFE channels
1.8 V analog and digital core supply voltage
Serial data output with reduced range LVDS outputs
Differential analog inputs
CDS or SHA configuration (CDS bypass) 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 analog-to-digital converter (ADC)
Black level clamp with variable level control
Precision Timing core with 240 ps resolution @ 65 MHz
APPLICATIONS
Digital video cameras
Digital still cameras
Digital copiers
Multifunction printers
High speed industrial cameras
GENERAL DESCRIPTION
The AD9978 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 ADC conversion. The
Precision Timing™ core allows adjustment of the correlated
double sampler (CDS) and sample-and-hold amplifier (SHA)
clocks with 240 ps resolution at 65 MHz operation. The
AD9978 also contains a reduced range, low voltage differential
signaling (LVDS) interface for the dual-channel data outputs.
Each analog front end includes black level clamping, a CDS,
a VGA, and a 65 MHz, 14-bit ADC. Operation is programmed
using a 3-wire serial interface.
Packaged in a space-saving, 6 mm × 6 mm, 40-lead LFCSP, the
AD9978 is specified over an operating temperature range of
−25°C to +85°C.
FUNCTIONAL BLOCK DIAGRAM
INP_A
INM_A
INM_B
INP_B
–3dB, 0dB, +3dB, +6dB
–3dB, 0dB, +3dB, +6dB
CDS/
SHA
VGA
6dB TO 42dB
CLAMP
ADC
VD
HD
SDATA
SCK
CLI
CLK_OUT
DOUT0P
DOUT0N
DOUT1P
DOUT1N
DOUT2P
DOUT2N
DOUT3P
DOUT3N
TCLKP
TCLKN
SL
CLAMP
VREF
ADC
6dB TO 42dB
CDS/
SHA
VGA
PRECISION
TIMING
CORE
SYNC
GENERATOR
INTERNAL CLOCKS
INTERNAL
REGISTERS
LVDS
SERIALIZER
AD9978
Figure 1.
For more information about the AD9978, contact Analog Devices via email at afe.ccd@analog.com.


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