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Complete 12-Bit, 40 MHz CCD Signal ADC
GENERAL DESCRIPTION
The MS9945 are complete 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.