描述 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.

特性 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