Philips SAA7345

1998 Feb 16 2

Philips Semiconductors Product speciﬁcation

CMOS digital decoding IC with RAM for

Compact Disc SAA7345

FEATURES

•Integrated data slicer and clock regenerator

•Digital Phase-Locked Loop (PLL)

•Demodulator and Eight-to-Fourteen Modulation (EFM)

decoding

•Subcoding microcontroller serial interface

•Integrated programmable motor speed control

•Error correction and concealment functions

•Embedded Static Random Access Memory (SRAM) for

de-interleave and First-In First-Out (FIFO)

•FIFO overflow concealment for rotational shock

resistance

•Digital audio interface [European Broadcasting Union

(EBU)]

•2 to 4 times oversampling integrated digital filter

•Audio data peak level detection

•Versatile audio data serial interface

•Digital de-emphasis filter

•Kill interface for Digital-to-Analog Converter (DAC)

deactivation during digital silence

•Double speed mode

•Compact Disc Read Only Memory (CD-ROM) modes

•A single speed only version is available

(SAA7345GP/SS).

GENERAL DESCRIPTION

The SAA7345 incorporates the CD signal processing

functions of decoding and digital filtering. The device is

equipped with on-board SRAM and includes additional

features to reduce the processing required in the analog

domain.

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.

QUICK REFERENCE DATA

ORDERING INFORMATION

SYMBOL PARAMETER MIN. TYP. MAX. UNIT

VDD supply voltage 3.4 5.0 5.5 V

IDD supply current −22 50 mA

fxtal crystal frequency 8 16.9344 or

33.8688 35 MHz

Tamb operating ambient temperature −40 −+85 °C

Tstg storage temperature −55 −+125 °C

TYPE

NUMBER

PACKAGE

NAME DESCRIPTION VERSION

SAA7345GP QFP44 plastic quad ﬂat package; 44 leads (lead length 2.35mm); body

14 ×14 ×2.2 mm SOT205-1