tmc22051 Cadeka Microcircuits LLC., tmc22051 Datasheet

tmc22051

Manufacturer Part Number

tmc22051

Description

Multistandard Digital Video Decoder Three-line Adaptive Comb Decoder Family, 8 & 10 Bit

Manufacturer

Cadeka Microcircuits LLC.

Datasheet

1.TMC22051.pdf (84 pages)

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Features

• Very high performance, low cost

• Adaptive comb-based decoding

• Multiple pin-compatible versions

• Internal digital linestores

• Supports NTSC/PAL ﬁeld and NTSC frame based

• Multiple input formats

• Multiple output formats

• 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

Block Diagram

TMC22x5yA

Multistandard Digital Video Decoder

Three-Line Adaptive Comb Decoder Family, 8 & 10 bit

MASTER

VIDEOA

VIDEOB

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

- 8- and 10-bit processing

decoding

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

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

BUFFER

HSYNC

CLOCK

VSYNC

LDV

1-0

9-0

Processor

Sync Pulse

Generator

Input

Internal

Linestore1

Linestore2

A 1-0

Parallel Control

R/W

Y/C Split0

Y/C Split1

Y/C Split2

D 7-0

Adaptive

Comb

Filter

Description

The TMC22x5yA family of Digital Video Decoders offers

unprecedented, broadcast-quality video processing perfor-

mance in a single chip. It accepts line-locked or subcarrier-

locked composite, YC, or D1 digital video and produces dig-

ital components in a variety of formats.

An internal three-line adaptive comb decoder structure pro-

duces 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 programma-

bility 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 decod-

ers in 8-bit and 10-bit versions—all in a pin and software-

compatible format. Serial and parallel control ports are pro-

vided. These submicron CMOS devices are packaged in a

100-lead Metric Quad Flat Pack (MQFP).

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