MSM6688LGS-2K(2002) 데이터 시트보기 (PDF) - Oki Electric Industry

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MSM6688LGS-2K
(Rev.:2002)

ADPCM Solid-State Recorder IC

Oki Electric Industry 

OKI Semiconductor

FEDL6688-6688L-04

MSM6688/6688L

CONTENTS

GENERAL DESCRIPTION ................................................................................................................................... 1

Differences between MSM6688 and MSM6688L............................................................................................. 1

(1) STAND-ALONE MODE (FOR MSM6688 (5 V VERSION))...................................................................... 4

FEATURES............................................................................................................................................................. 4

BLOCK DIAGRAM ............................................................................................................................................... 5

PIN CONFIGURATION (TOP VIEW) .................................................................................................................. 6

PIN DESCRIPTIONS ............................................................................................................................................. 7

ABSOLUTE MAXIMUM RATINGS (for MSM6688 (5 V Version))................................................................. 11

RECOMMENDED OPERATING CONDITIONS (for MSM6688 (5 V Version)).............................................. 11

ELECTRICAL CHARACTERISTICS (for MSM6688 (5 V Version))................................................................ 12

TIMING DIAGRAMS .......................................................................................................................................... 16

FUNCTIONAL DESCRIPTION........................................................................................................................... 29

Recording Time and Memory Capacity........................................................................................................... 29

Connection of an Oscillator ............................................................................................................................. 29

Power Supply Wiring....................................................................................................................................... 31

Configuring SGC and SG pins......................................................................................................................... 31

Analog Input Amplifier Circuit ....................................................................................................................... 32

Connection of LPF Circuit Peripherals............................................................................................................ 34

LPF Characteristics.......................................................................................................................................... 35

Reset Function ................................................................................................................................................. 36

Power Down by the PDWN pin...................................................................................................................... 37

Record/Playback Control Mode....................................................................................................................... 38

Deleting phrases............................................................................................................................................... 40

Recording Method ........................................................................................................................................... 41

Playback Method ............................................................................................................................................. 42

ROM Playback Method ................................................................................................................................... 43

Voice Triggered Starting ................................................................................................................................. 44

Method of Temporarily Stopping Record/Playback by Pause Function.......................................................... 46

APPLICATION CIRCUIT.................................................................................................................................... 47

(2) MICROCONTROLLER INTERFACE MODE (FOR MSM6688 (5 V VERSION)

AND MSM6688L (3 V VERSION)) ............................................................................................................. 48

FEATURES........................................................................................................................................................... 48

BLOCK DIAGRAM ............................................................................................................................................. 49

PIN CONFIGURATION (TOP VIEW) ................................................................................................................ 50

PIN DESCRIPTIONS ........................................................................................................................................... 51

ABSOLUTE MAXIMUM RATINGS (for MSM6688 (5 V Version))................................................................. 54

RECOMMENDED OPERATING CONDITIONS (for MSM6688 (5 V Version)).............................................. 54

ELECTRICAL CHARACTERISTICS (for MSM6688 (5 V Version))................................................................ 54

ABSOLUTE MAXIMUM RATINGS (for MSM6688L (3 V Version)) .............................................................. 59

RECOMMENDED OPERATING CONDITIONS (for MSM6688L (3 V Version)) ........................................... 59

ELECTRICAL CHARACTERISTICS (for MSM6688L (3 V Version)) ............................................................. 59

TIMING DIAGRAMS .......................................................................................................................................... 64

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