AD9979
AD9979 is CCD Signal Processor manufactured by Analog Devices.
FEATURES
1.8 V analog and digital core supply voltage Correlated double sampler (CDS) with
- 3 d B, 0 d B, +3 d B, and
+6 d B gain 6 d B to 42 d B 10-bit variable gain amplifier (VGA) 14-bit 65 MHz analog-to-digital converter Black-level clamp with variable level control plete on-chip timing generator Precision Timing™ core with 240 ps resolution @ 65 MHz On-chip 3 V horizontal and RG drivers General-purpose outputs (GPOs) for shutter and system support 7 mm × 7 mm, 48-lead LFCSP Internal LDO regulator circuitry
APPLICATIONS
Professional HDTV camcorders Professional/high end digital cameras Broadcast cameras Industrial high speed cameras
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 plete analog front end with analog-to-digital conversion, bined 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, and a 65 MSPS, 14-bit analog-to-digital converter (ADC). 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, the AD9979 is specified over an operating temperature range of
- 25°C to +85°C.
CCDINP CCDINM
FUNCTIONAL BLOCK DIAGRAM
REFT REFB
VREF
- 3d B, 0d B, +3d B, +6d B
6d B TO 42d B
ADC CLAMP
14 DOUT
D0 TO D13
LDOOUT
RG HL
H1 TO H4
4 HORIZONTAL DRIVERS
GPO1 GPO2
INTERNAL CLOCKS
PRECISION TIMING CORE
SYNC GENERATOR
HD VD
Figure 1.
INTERNAL REGISTERS
SL SCK SDI
05957-001
Rev. C
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