MS9945
MS9945 is CCD Signal ADC manufactured by Ruimeng.
DESCRIPTION
The MS9945 are plete analog signal processors for CCD applications. They feature a 40 MHz single-channel architecture designed to sample and condition the outputs of interlaced and progressive scan area CCD arrays. The signal chain for the MS9945 consists of a correlated double sampler (CDS), a digitally controlled variable gain amplifier (VGA), and a black level clamp. The MS9945 offers 12-bit ADC resolution.
The internal registers are programmed through a 3-wire serial digital interface. Programmable features include gain adjustment, black level adjustment, input clock polarity, and power-down modes. The MS9945 operate from a single 3 V power supply, typically dissipate 140 m W, and are packaged in space-saving 32-lead QFN packages.
FEATURES
- 40 MSPS correlated double sampler (CDS)
- 6 d B to 40 d B 10-bit variable gain amplifier
- Low noise optical black clamp circuit
- Preblanking function
- No missing codes guaranteed
- 3-wire serial digital interface
- 3 V single-supply operation
- QFN32 package
APPLICATIONS
- Digital still cameras
- Digital video camcorders
- PC cameras
- Portable CCD imaging devices
- CCTV cameras
Class chip
Hangzhou Ruimeng Technology Co.,LTD
Http: .relmon. package
-1-
FUNCTIONAL BLOCK DIAGRAM
QFN32
Hangzhou Ruimeng Technology Co.,LTD
Http: .relmon.
-2-
Pin Configuration
Pin Configuration
Pin Number
Pin Name
1～10 11 12 13 14 15 16 17 18 19 20 21 22 23
D2～D11 DRVDD DRVSS DVDD DATACLK DVSS PBLK CLPOB SHP SHD AVDD AVSS CCDIN REFT
I/O function
Digital Data Outputs.
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Digital Output Driver Supply.
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Digital Output Driver...
