W9952Q

更新时间： 2024-09-25 13:15:35

品牌	Logo	应用领域
华邦 - WINBOND		电视编码器
页数	文件大小	规格书
1页	34K
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中文翻译

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数据手册

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W9952Q 数据手册

W9952QP

TV ENCODER

GENERAL DESCRIPTION

FUNCTIONAL BLOCK

The W9952QP digital video encoder converts

YCbCr (4:2:2) 8-bit data into analog composite

video and Y/C video signals. It accepts ITU-601/656

or square pixel input formats, and the output video is

formatted to be compatible with 525-line (M) NTSC/

PAL or 625-line (B,D,G,H,I,M,Nc) PAL TV System.

Sync/ Blank/ Pedestal

FSADJ

VREF_IN

COMP

P[7:0]

Color

Space

1.3 MHz

Low

Pass

Mux

Sampl-

ing

DAC

Converter

Modu -

lator

CBSWAP

Filter

CLK

MASTER

SLEEP

Bandgap

Voltage

Reference

Video

Timing

DTO

VREF

_OUT

The W9952QP operates in both master or slave

modes. At slave mode, the W9952QP auto detects

the input video format from the HSYNCN and

VSYNCN pins and generates the corresponding

video signals. At master mode, It generates the

required video timing internally according to the

configuration.

Generator

MODE[3:0]

SVIDEO

TEST

VSYNCN HSYNCN

Figure-1 W9952QP Functional Block

The W9952QP has two DAC outputs which can

output either two composite video signals or one Y/C

S-video signal. The W9952QP doesn't output

composite video and S-video simultaneously.

APPLICATIONS

W9952QP is designed for digital video applications,

such as VCDs (Video CDs), STBs (Set-Top Box) and

video games.

The W9952QP can operate at power-down mode by

selecting the SLEEP pin.

Figure 2 shows a typical configuration of W9952QP

application.

The W9952QP is designed to connect to MPEG1

and MPEG2 video decoders without glue logic. All

video processing is done digitally and requires no

external adjustment and no software programming is

required.

P[7:0]

CVBS/ Y

CLK

MPEG1/2

W9952QP

HSYNCN

VSYNCN

DESKTOP

VIDEO

CVBS/ C

FEATURES

Full multi-standard digital encoder support for

525-line (M) NTSC/ PAL or 625-line PAL ( B, D,

G, H, I, M, Nc)

Fig. 2 W9952QP Application

Accepts 8-bit ITU-601/656 or square YCbCr

(4:2:2) video data

Two composite outputs or one Y/C video output

(S video)

FSADJ

COMP

CLK

P[7]

P[6]

P[5]

P[4]

P[3]

P[2]

P[1]

P[0]

Master/ slave sync signal switchable

Interlaced and non-interlaced operation modes

Optional internal voltage reference

Power down mode

No software programming is required

5 Volts operation

VAA

VREF_OUT

VREF_IN

W9952QP

CVBS_C

AGND

SLEEP

32-pin PLCC package

Winbond Corporate Headquarters

Tel : 886-3-5790666

Fax : 886-3-5796139

Taipei Sales Office

Tel : 886-2-27190505

Fax : 886-2-27197502

Winbond Electronics North America Corp.

Tel : 1-408-943666

Fax : 1-408-9436668

Winbond Electronics H.K. Ltd.

Tel : 852-27513100

Fax : 852-27552064

Details are subject to change without notice. All trademarks are property of their respective holders.

May 1997

中文翻译

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