M5218 Ver la hoja de datos (PDF) - Oki Electric Industry

Número de pieza

componentes Descripción

Lista de partido

M5218

ADPCM Voice Analysis/Synthesis IC

Oki Electric Industry 

¡ ¡ SemicondSucetormiconductor

MSM5218

ADPCM Voice Analysis/Synthesis IC

MSM5218

GENERAL DESCRIPTION

The MSM5218 is a complete voice analysis/synthesis IC featuring the Adaptive Differential Pulse

Code Modulation (ADPCM) method of data compression. The MSM5218 contains an analysis stage

where serial PCM data is compressed to 3- or 4-bit parallel ADPCM data. In addition, a synthesis

stage synthesizes PCM data from ADPCM data.

FEATURES

• ADPCM data compatible with OKI's synthesis IC MSM5205

• Analysis/synthesis switching pin provided

• Lower power consumption achieved by one-chip CMOS IC

• Built-in 10-bit D/A converter for analog output

• Variable sampling frequency (4 kHz, 6 kHz, 8 kHz)

• Master clock frequency: 384 kHz

• Package: 24-pin plastic DIP (DIP24-P-600) (Product name: MSM5218RS)

BLOCK DIAGRAM

VDD

BIN/TOC

SICK

ADSI

SCON

XT

XT

S1

S2

VCK

RESET

12-bit

S•R 12

f SI

OSC

Timing

Circuit

ADPCM

Analyzer

ADPCM

Synthesizer

10 10-bit

DAC

12 12-bit

S•R

4B/3B

ANA/SYN

D3

D2

D1

D0

DAOUT

MSB/SO

SOCK

T1 T2

VSS

DAS

Share Link: