AD9849 Analog Devices, AD9849 Datasheet
AD9849
Manufacturer Part Number
AD9849
Description
CCD Signal Processors with Integrated Timing Driver
Manufacturer
Analog Devices
Datasheet
1.AD9849.pdf
(36 pages)
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a
PxGA is a registered trademark and Precision Timing is a trademark of Analog Devices, Inc.
CCDIN
H1–H4
RG
4
AD9848/AD9849
HORIZONTAL
DRIVERS
CDS
CLAMP
FUNCTIONAL BLOCK DIAGRAM
4 6dB
PxGA
GENERATOR
PRECISION
HD
INTERNAL
TIMING
CLOCKS
CORE
2dB TO 36dB
SYNC
VD
TM
VGA
PRODUCT DESCRIPTION
The AD9848 and AD9849 are highly integrated CCD signal pro-
cessors for digital still camera applications. Both include a complete
analog front end with A/D conversion, combined with a program-
mable timing driver. The Precision Timing core allows adjustment
of high speed clocks with approximately 1 ns resolution.
The AD9848 is specified at pixel rates of 20 MHz, and the
AD9849 is specified at 30 MHz. The analog front end includes
black level clamping, CDS, PxGA, VGA, and a 10- or 12-bit A/D
converter. The timing driver provides the high-speed CCD clock
drivers for RG and H1-H4. Operation is programmed using a
3-wire serial interface.
Packaged in a space-saving 48-lead LQFP, the AD9848 and
AD9849 are specified over an operating temperature range of
–20°C to +85°C.
CCD Signal Processors with
VRT
VREF
CLAMP
VRB
SL
Integrated Timing Driver
REGISTERS
ADC
INTERNAL
SCK
SDATA
10 OR 12
AD9848/AD9849
CLPDM
CLPOB
CLI
PBLK
DOUT