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14-Bit, CCD Signal Processor with
www.BDTIC.com/ADI
FEATURES
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 65 MHz analog-to-digital converter
Black-level clamp with variable level control
Complete on-chip timing generator
Precision Timing c
On-chip 3 V horizontal and RG drivers
General-purpose outputs (GPOs) for shutter and system
sup
port
7 mm × 7 mm, 48-lead LFCSP package
Internal LDO regulator circuitry
APPLICATIONS
Professional HDTV camcorders
Professional/high end digital cameras
Broadcast cameras
Industrial high speed cameras
ore with 240 ps resolution @ 65 MHz
Precision Timing™ Core
AD9979
GENERAL DESCRIPTION
The AD9979 is a highly integrated CCD signal processor for
high speed digital video camera applications. Specified at pixel
rates of up to 65 MHz, the AD9979 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
240 ps resolution at 65 MHz operation.
The analog front end includes black-level clamping, CDS, VGA,
a
nd 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.
Available in a space-saving, 7 mm × 7 mm, 48-lead LFCSP
ackage, the AD9979 is specified over an operating temperature
p
range of −25°C to +85°C.
FUNCTIONAL BLOCK DIAGRAM
REFT REFB
AD9979
CCDINP
CCDINM
LDOOUT
RG
HL
H1 TO H4
4
CDS
–3dB, 0dB, +3dB, +6dB
LDO
HORIZONTAL
DRIVERS
VGA
6dB TO 42d B
INTERNAL CLO CKS
PRECISION
TIMING
CORE
SYNC
GENERATOR
HD VD
Figure 1.
VREF
SL
ADC
CLAMP
INTERNAL
REGISTERS
SCK SDATA
14
DOUT
D0 TO D13
CLI
05957-001
Rev. Sp0
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: 781.329.4700 www.analog.com
Fax: 781.461.3113 ©2007 Analog Devices, Inc. All rights reserved.
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AD9979
www.BDTIC.com/ADI
©2007 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
D05957F-0-2/07(Sp0)
Rev. Sp0 | Page 2 of 2
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