The VSP1221 is a highly-integrated mixed-signal IC used for signal conditioning and analog-to-digital conversion at the output of a CCD array. The IC has a correlated double sampler (CDS) and an analog programmable-gain amplifier (PGA) stage followed by an analog-to-digital converter (ADC) and a digital PGA stage. The CDS is used to sample the CCD signal and is followed by the analog PGA stage. The ADC is a 12-bit, 21-MSPS pipelined ADC. The digital PGA provides further amplification.
Additionally, there is an offset calibration loop for optical-black correction. The optical-black reference level is user-programmable. The chip also has two eight-bit digital-to-analog converters (DAC) for external analog settings.
The chip has a serial port for configuring internal control registers.
The VSP1221 is available in a 48-pin TQFP package and operates from a single 3-V power supply.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | 12-Bit, 21-MSPS, UltraLow-Power CCD Signal Processor datasheet (Rev. B) | 16 Apr 2014 |
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| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| TQFP (PFB) | 48 | Ultra Librarian |
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