描述 Description

The TMC22x5yA family of Digital Video Decoders offers unprecedented, broadcast-quality video processing performance in a single chip. It accepts line-locked or subcarrier locked composite, YC, or D1 digital video and produces digital components in a variety of formats.

An internal three-line adaptive comb decoder structure produces optimal picture quality with a wide range of source material. NTSC/PAL field and NTSC frame based decoding is supported with external memory. Full comb programmability allows the user to tailor the decoder’s response to a particular systems goals.

A family of products offers 3-line, 2-line, and simple decoders in 8-bit and 10-bit versions—all in a pin and software compatible format. Serial and parallel control ports are provided. These submicron CMOS devices are packaged in a 100-lead Metric Quad Flat Pack (MQFP).

特性 Features

? Very high performance, low cost

? Adaptive comb-based decoding

? Multiple pin-compatible versions

- 3-line, 2-line, and band-split

- 8- and 10-bit processing

? Internal digital linestores

? Supports NTSC/PAL field and NTSC frame based decoding

? Multiple input formats

- CCIR-601/624 (D1), D2, CVBS, YC

? Multiple output formats

- CCIR-601/624 (D1), RGB, YCBCR

? 10-18 Mpps data rate

? Parallel and serial control interface

? Single +5V power supply

Applications

? Studio television equipment

? Personal computer video input

? MPEG and JPEG compression inputs