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partfinder

:codec

DACs

Digital to Analog Converters. These take serial or parallel data and turn them into an analog signal. Of course you can use a R2R resistor ladder but these are compact and can use fewer pins

Image Part # & Datasheet Description Distributor Eagle library part
mcp4921_t.jpg MCP4921 The cheapest 12-bit thru-hole DAC we found
Input via SPI
Mouser Digikey Adafruit:MCP4921

ADCs

Analog to Digital Converters. These take analog in and turn it into serial or parallel data.

Image Part # & Datasheet Description Distributor Eagle library part
MCP3008 The cheapest 10-bit 8-channel thru-hole ADC we found
Output via SPI
Mouser Digikey Adafruit

Decoders

Image Part # & Datasheet Description
TVP5150AM1 Ultralow-power NTSC/PAL/SECAM video decoder
Converts CVBS to 8-bit digital