W9952 Winbond, W9952 Datasheet

W9952

Manufacturer Part Number

W9952

Description

TV ENCODER

Manufacturer

Winbond

Datasheet

1.W9952.pdf (1 pages)

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GENERAL DESCRIPTION

The W9952QP digital video encoder converts

YCbCr

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.

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.

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.

The W9952QP can operate at power-down mode by

selecting the SLEEP pin.

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.

FEATURES

Winbond Corporate Headquarters

Tel : 886-3-5790666

Fax : 886-3-5796139

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

Full multi-standard digital encoder support for

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

G, H, I, M, Nc)

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

(4:2:2) video data

Two composite outputs or one Y/C video output

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

32-pin PLCC package

(S video)

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

Taipei Sales Office

Tel : 886-2-27190505

Fax : 886-2-27197502

Winbond Electronics North America Corp.

Tel : 1-408-943666

Fax : 1-408-9436668

FUNCTIONAL BLOCK

APPLICATIONS

W9952QP is designed for digital video applications,

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

video games.

Figure 2 shows a typical configuration of W9952QP

application.

MODE[3:0]

DESKTOP

CBSWAP

MASTER

MPEG1/2

SLEEP

VIDEO

P[7:0]

CLK

Figure-1 W9952QP Functional Block

HSYNCN

VSYNCN

Converter

P[7:0]

Generator

CLK

Color

Space

Timing

Fig. 2 W9952QP Application

Video

VREF_OUT

VREF_IN

CVBS_C

SLEEP

Sync/ Blank/ Pedestal

FSADJ

COMP

AGND

VAA

DTO

W9952QP

1.3 MHz

Pass

Filter

Low

VSYNCN

W9952QP

HSYNCN

Modu -

TV ENCODER

lator

Winbond Electronics H.K. Ltd.

Tel : 852-27513100

Fax : 852-27552064

CVBS/ C

CVBS / Y

TEST

Mux

W9952QP

SVIDEO

Sampl-

ing

P[1]

CLK

P[7]

P[6]

P[5]

P[4]

P[3]

P[2]

P[0]

Reference

Bandgap

Voltage

May 1997

DAC

FSADJ

VREF_IN

COMP

VREF

_OUT

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