Description

The TMC22x91 digital video encoders convert digital computer image or graphics data (in RGB, YCBCR, or color indexed format) or a CCIR-601 signal into a standard analog baseband television (NTSC or PAL) signal with a modulated color subcarrier.

Features

• All-digital video encoding

• Internal digital oscillators, no crystals required

• Multiple input formats supported

– 24-bit and 15-bit GBR/RGB

– YCBCR422 or 444

– Color indexed

• 30 overlay colors (TMC22191)

• Fully programmable timing

• Supports input pixel rates of 10 to 15 Mpps

• 256 x 8 x 3 color look-up tables (bypassable on TMC22191)

• 8-bit mask register

• 8-bit composite digital video input

• Hardware and 24-bit data keying

• Synchronizes with TMC22071 Genlocking Video Digitizer

• 8:8:8 video reconstruction

• SMPTE 170M NTSC or CCIR Report 624 PAL compatible

• Supports PAL-M and NTSC without pedestal

• Simultaneous S-VIDEO (Y/C) NTSC/PAL output

• 10-bit D/A conversion (three channels)

• Controlled edge rates

• 3 power-down modes

• Built-in color bars and modulated ramp test signals

• JTAG (IEEE Std 1149.1-1990) test interface

• Single +5V power supply

• 84 lead PLCC package

• 100 lead MQFP package