HMP8112 参数 Datasheet PDF下载

Semiconductor

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HMP8112

NTSC/PAL Video Decoder

March 1998

Features

• Supports ITU-R BT.601 (CCIR601) and Square Pixel

• 3 Composite Analog Inputs with Sync Tip AGC, Black

Clamping and White Peak Control

• Patented Decoding Scheme with Improved 2-Line

Comb Filter, Y/C Separation

• NTSC M, N, and PAL (B, D, G, H, I, M, N, CN) Operation

• Composite or S-Video Input

• User-Selectable Color Trap and Low Pass Video

Filters

• User Selectable Hue, Saturation, Contrast, Sharpness,

and Brightness Controls

• User Selectable Data Transfer Output Modes

- 16-Bit 4:2:2 YCbCr

- 8-Bit 4:2:2 YCbCr

• User Selectable Clock Range from 20MHz - 30MHz

• I

2

C Interface

• VMI Compatible Video Data Bus

Description

The HMP8112 is a high quality, digital video, color decoder with

internal A/D converters. The A/D function includes a 3:1 analog

input mux, Sync Tip AGC, Black clamping and two 8-bit A/D

Converters. The high quality A/D converters minimize pixel jitter

and crosstalk.

The decoder function is compatible with NTSC M, PAL B, D,

G, H, I, M, N and special combination PAL N video stan-

dards. Both composite (CVBS) and S-Video (Y/C) input for-

mats are supported. A 2 line comb filter plus a user

selectable Chrominance trap filter provide high quality Y/C

separation. Various adjustments are available to optimize

the image such as Brightness, Contrast, Saturation, Hue and

Sharpness controls. Video synchronization is achieved with

a 4xf

SC

chroma burst lock PLL for color demodulation and

line lock PLL for correct pixel alignment. A chrominance sub-

sampling 4:2:2 scheme is provided to reduce chrominance

bandwidth.

The HMP8112 is ideally suited as the analog video interface

to VCR’s and camera’s in any multimedia or video system.

The high quality Y/C separation, user flexibility and inte-

grated phase locked loops are ideal for use with today’s pow-

erful compression processors. The HMP8112 operates from

a single 5V supply and is TTL/CMOS compatible.

Applications

• Multimedia PCs

• Video Conferencing

• Video Editing

• Video Security Systems

• Settop Boxes (Cable, Satellite, and Telco)

• Digital VCRs

• Related Products

- NTSC/PAL Encoders: HMP8154, HMP8156,

HMP8171, HMP8173

- NTSC/PAL Decoders: HMP8115

Ordering Information

PART NUMBER

HMP8112CN

HMP8112EVAL2

HMP8156EVAL2

TEMP.

RANGE (

o

C)

0 to 70

PACKAGE

80 Ld PQFP†

PKG.NO.

Q80.14x20

PCI Reference Design (Includes Part)

Frame Grabber Evaluation Board

(Includes Part)

†

PQFP is also known as QFP and MQFP

Table of Contents

Page

Functional Block Diagrams . . . . . . . . . . . . . . . . . . . . . . . . 2

Functional Operation Introduction. . . . . . . . . . . . . . . . . . . 6

Internal Register Description Tables . . . . . . . . . . . . . . . . . 14

Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

AC and DC Electrical Specifications . . . . . . . . . . . . . . . . . 24

Typical Performance Curves . . . . . . . . . . . . . . . . . . . . . . . 27

Applications Information . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Package Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.

Copyright

©

Harris Corporation 1998

File Number

4221.3

1