Datasheet > SPCA701A

SPCA701A

更新时间： 2024-10-13 22:50:11

品牌	Logo	应用领域
其他 - ETC		编码器
页数	文件大小	规格书
16页	146K
描述
DIGITAL VIDEO ENCODER FOR VIDEOCD

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中文翻译

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数据手册

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SPCA701A 数据手册

Preliminary

SPCA701A

DIGITAL VIDEO ENCODER FOR VIDEOCD

GENERAL DESCRIPTION

The SPCA701A is designed specifically for VideoCD, video games and other digital video systems, which require

the conversion of digital YCrCb (MPEG) data to analog NTSC/PAL video. The device supports a glue-less

interface to most popular MPEG decoders. The SPCA701A supports worldwide video standards, including

NTSC (N America, Japan) PAL-B, D, G, H, I (Europe, Asia). Furthermore, the SPCA701A operates with a

single 2x clock and can be powered with a single 3.3V supply. The composite analog video signal is output

simultaneously onto two outputs. Therefore, it allows one output to provide base-band composite video while

the other drives a RF modulator. Alternatively, analog luminance (Y) and chrominance (C) information is

available for interfacing to S-video equipment. As a slave, the SPCA701A automatically detects the input data

formats (PAL/NTSC, CCIR601) and switches internally to provide the proper format on the outputs. This feature,

along with the on-board voltage reference and single clock interface, makes the SPCA701A extremely simple to

use. In addition, use of 2x over-sampling on-chip simplifies external filter design resulting in reduced overall

system cost.

FEATURES

BLOCK DIAGRAM

ꢀ 8-bit 4:2:2 YCrCb inputs for glue-less interface to

MPEG decoders

VBIAS VREFOUT

FSADJUST

ꢀ NTSC/PAL composite video outputs (North

American NTSC and Western European PAL)

ꢀ CVBS or S-video outputs

CLK

Internal

VREF

COMP

VRDAC

P[7:0]

DAC

CVBS/Y

CVBS/C

ꢀ 3.3 V supply voltage

Mod.

and

Mixer

2 x

Upsample

HSYNC*

Latch

ꢀ 5 V tolerant for all digital I/O data pins

ꢀ CCIR 601 operation

1.3MHz

LPF

VSYNC*

ꢀ 2x over sampling simplifies external filtering

ꢀ 9-bit DACs

MODE[3:0]

MASTER

CBSWAP

SVIDEO

SLEEP

ꢀ Master or slave video timing

ꢀ Interlaced operation

APPLICATIONS

ꢀ Automatic mode detection/switching in slave mode

ꢀ On-board voltage reference

ꢀ 32-pin PLCC package

ꢀ VideoCD

ꢀ Karaoke/video games

ꢀ Digital Video Disk (DVD)

ꢀ Digital VCR

ꢀ Digital set top box

ꢀ Sunplus Technology Co., Ltd.

Rev.: 0.2 1999.12.07

12 3 4 5 6 7...16

中文翻译

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