UPD61012 NEC, UPD61012 Datasheet

UPD61012

Manufacturer Part Number

UPD61012

Description

MPEG1 Decoder LSI for Video CD

Manufacturer

NEC

Datasheet

1.UPD61012.pdf (2 pages)

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Introduction

decoder has rapidly expanded, particularly

in Asian countries such as China and Korea.

Recently, demand for video CD players in

China has grown because of their falling

price, and high-cost-performance video CD

systems with an MPEG1 decoder and

peripheral functions are in high demand.

video CD systems required in the Chinese

market because it provides the peripheral

functions necessary for video CD systems

on a single chip.

Outline

decoder LSI for video CD that integrates an

MPEG1 decoder, video encoder, video DAC,

CD-ROM decoder, and on-screen display

(OSD) on a single chip.

supporting Chinese, a code input control

function for damaged discs, reduced screen

playback function, and a playback control

memory, the

configuration for the Chinese video CD

system market.

Function

described below.

1. MPEG1 decoder

data of a video CD (352 x 240 x 30 frames:

NTSC format, or 352 x 288 x 25 frames: PAL

format) and High Resolution still picture data

Published January 1998

PD61012. The major functions are

The market of video CDs using an MPEG1

The PD61012 is ideal for the type of

The PD61012 is Japan’s first MPEG1

In addition, equipped with OSD characters

Table 1 lists the functions of the

The PD61012 can decode motion picture

MPEG1 DECODER LSI FOR VIDEO CD

PD61012

PD61012 offers an ideal

(704 x 488 pixels, or 704 x 576 pixels).

image size, it can implement frame format

conversion according to the output monitor.

In other words, the PD61012 can output

disc data recorded in the NTSC format to a

PAL monitor, and disc data recorded in the

PAL format to an NTSC monitor.

MPEG1

video decode

MPEG1

audio decoding

CD-ROM

data format

OSD function

Video output

Host interface

Others

To automatically recognize and decode

Errors due to erroneous MPEG1 data are

NEW PRODUCTS 5

Parameter

352 pixels x 240 lines x 30 frames

352 pixels x 288 lines x 25 frames

704 pixels x 480 lines (High Resolution still picture)

704 pixels x 578 lines (High Resolution still picture)

Supports MPEG1 audio layers 1, 2

Sampling frequency: 44.1 kHz

Bit rate: All bit rates except free format

Mode: Monaural, stereo, joint stereo, dual channel

Mode1

Mode2Form1

Mode2Form2?(double-speed input supported)

Character size: 12 x 18 dots

Character type: 224 fixed characters

31 user-defined characters

Color: Character color and background color can be specified in screen units.

Function: Framing, with/without background color, blinking, expansion

Composite output, Y/C separate output, RGB output (analog output)

Supports PAL and NTSC TV systems

Serial interface: 2-wire, 3-wire

Parallel interface: 8-bit separate mode, 8-bit multiplexed mode

Reduced screen function

Supports auto pause

8 KB sector buffer

Can be decoded with 60-ns 4M DRAM

Operating voltage: 3.0 to 3.6 V

100-pin QFP

(1 to 4 times)

System Micro Engineering Department, Semiconductor Solution Engineering Division

corrected by image skipping and muting.

2. CD-ROM decoder

MODE2form1, and MODE2form2 data

formats. The data of MODE2form2 of

MPEG1 data can be input at double speed.

The CD-ROM decoder can control code

PD61012

Function

The internal CD-ROM decoder of the

Yasuhiko Kawaguchi

supports

Table 1 Function List

the

MODE1,

Related parts for UPD61012

UPD61012 Summary of contents

Page 1

... The PD61012 is ideal for the type of video CD systems required in the Chinese market because it provides the peripheral functions necessary for video CD systems on a single chip. Outline The PD61012 is Japan’s first MPEG1 decoder LSI for video CD that integrates an ...

Page 2

... The PD61012 can specify an LR clock, whether data is transferred starting from the MSB or LSB, a data length, and a bit clock by using registers, so that it can be connected to the CD player of each manufacturer also supports the I S interface used in Phillips’ ...

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