SAA7370GP/M1 Просмотр технического описания (PDF) - Philips Electronics

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Компоненты Описание

производитель

SAA7370GP/M1

Digital servo processor and Compact Disc decoder (CD7)

Philips Electronics 

Philips Semiconductors

Digital servo processor and

Compact Disc decoder (CD7)

Product specification

SAA7370

1 FEATURES

• CD ROM mode

• Up to 4 times-speed mode

• Lock-to-disc mode

• Full error correction strategy, t = 2 and e = 4

• Full CD graphics interface

• All standard decoder functions implemented digitally on

chip

• FIFO overflow concealment for rotational shock

resistance

• Digital audio interface (EBU), audio and data

• 2 and 4 times oversampling integrated digital filter,

including fs mode

• Audio data peak level detection

• Kill interface for DAC deactivation during digital silence

• All TDA1301 (DSIC2) digital servo functions, plus extra

high-level functions

• Low focus noise

• Improved playability on ABEX TCD-721R, TCD-725 and

TCD-714 discs

• Automatic closed loop gain control available for focus

and radial loops

• Pulsed sledge support

• Up to 80 kHz jump performance

• Electronic damping of fast radial actuator during long

jump

• Microcontroller loading LOW

• High-level servo control option

• High-level mechanism monitor

• Communication may be via TDA1301/SAA7345

compatible bus or I2C-bus

• On-chip clock multiplier allows the use of 8.4672 MHz

crystal.

2 GENERAL DESCRIPTION

The SAA7370 (CD7) is a single chip combining the

functions of a CD decoder IC and digital servo IC.

The decoder part is based on the SAA7345 (CD6) with an

improved error correction strategy. The servo part is based

on the TDA1301T (DSIC2) with improvements

incorporated, extra features have also been added.

Supply of this Compact Disc IC does not convey an implied

license under any patent right to use this IC in any

Compact Disc application.

3 QUICK REFERENCE DATA

SYMBOL

VDD

IDD

fxtal

Tamb

Tstg

PARAMETER

supply voltage

supply current

crystal frequency

operating ambient temperature

storage temperature

CONDITIONS MIN.

4.75

n = 1 mode −

8

0

−55

TYP.

5.0

49

8.4672

−

−

MAX.

5.25

−

35

+70

+125

UNIT

V

mA

MHz

°C

°C

4 ORDERING INFORMATION

TYPE NUMBER

SAA7370

NAME

QFP64

PACKAGE

DESCRIPTION

plastic quad flat package; 64 leads (lead length 1.6 mm);

body 14 × 14 × 2.7 mm

VERSION

SOT393-1

1998 Feb 26

3

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