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SAA2510

Video CD (VCD) decoder

Philips Electronics 

Philips Semiconductors

Video CD (VCD) decoder

Preliminary specification

SAA2510

FEATURES

(With standard microcode loaded)

• Decoding and display of MPEG1 video streams

(constrained parameters)

• Decoding of MPEG audio streams (layer II)

• Decoding, storage (compressed) and display of

high-resolution still pictures of 704 × 576 pixels

• Requires only 4 Mbits of external 70 ns DRAM

• Audio transparency mode for CD-DA discs

• On-screen display capability

• Play options:

– Play

– Stop

– Pause/continue

– Slow-motion forward

– Scan forward

– Scan backward.

• Supports auto-pause feature

• Disc interface: Philips I2S, EIAJ, MEC formats and

IEC 958 (EBU) interface

• Separate error flag input (EFIN) and data valid input

(NDAV)

• Performs basic block decoder functions:

– serial-to-parallel conversion

– sync detection

– descrambling

– EDC calculation

– error-correction for mode 2 form 1 sectors

– header and sub-header interpretation.

• I2C-bus interface

• Video output YUV 4 : 2 : 2 format. DMSD bus

compatible

• Also supports CCIR656 video interface, including line

and field timing codes

• Audio output: 44.1 kHz. 16, 18 or 20 bits per audio

sample in Philips I2S, Sony or MEC formats

• EBU audio output, fully transparent from input to output

in CD-DA mode and generated in MPEG mode

• Downloadable microcode for internal controllers

• Internal video timing generator

• Requires 40 MHz crystal for system clock generation

• Requires 27 MHz crystal or external 27 MHz source for

video timing generation

• Requires 16.9344 MHz (384 × 44.1 kHz) clock locked to

CD drive

• Internal generation of 90 kHz MPEG clock

• Capability of sharing external DRAM by 3-stating all

DRAM pins.

APPLICATION

• Dedicated video CD players.

GENERAL DESCRIPTION

MPEG1 audio and video CD (VCD) decoder, intended for

use in low-cost dedicated video CD players. When used

with a 4 Mbit DRAM and a digital video encoder, the

decoder adds the required functionality to a CD decoder to

implement a low-cost video CD player capable of playing

discs coded to version 2.0 of the video CD specification.

The SAA2510 is an I2C-bus controlled chip and features

serial data input in four common bus formats. It provides

digital video output in CCIR601 and 656 formats.

A bit-mapped on-screen display is provided and output

video timing can be 525 lines/30 frames per second or

625 lines/25 frames per second. The chip is microcode

programmable for feature enhancement.

ORDERING INFORMATION

TYPE NUMBER

SAA2510

NAME

QFP100

PACKAGE

DESCRIPTION

plastic quad flat package; 100 leads (lead length 1.95 mm);

body 14 × 20 × 2.7 mm; high stand-off height

1996 May 21

2

VERSION

SOT317-1

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