MSM6688(2002) View Datasheet(PDF) - Oki Electric Industry

Part Name

Description

Manufacturer

MSM6688
(Rev.:2002)

ADPCM Solid-State Recorder IC

Oki Electric Industry 

OKI Semiconductor

FEDL6688-6688L-04

MSM6688/6688L

FUNCTIONAL DESCRIPTION........................................................................................................................... 83

Recording Time and Memory Capacity........................................................................................................... 83

Connection of an Oscillator ............................................................................................................................. 83

Power Supply Wiring....................................................................................................................................... 86

Configuring SGC and SG pins......................................................................................................................... 86

Analog Input Amplifier Circuit ....................................................................................................................... 87

Connection of LPF Circuit Peripherals............................................................................................................ 89

LPF Characteristics.......................................................................................................................................... 89

Full Scale of A/D and D/A Converters ............................................................................................................ 90

Reset Function ................................................................................................................................................. 91

Power Down by the PDWN pin...................................................................................................................... 92

Record/Playback Control Modes ..................................................................................................................... 93

Data Configuration of External Serial Registers.............................................................................................. 95

Data Configuration of External Serial Voice ROMs ..................................................................................... 104

Command Description ................................................................................................................................... 106

Status Register ............................................................................................................................................... 115

Inputting the Commands................................................................................................................................ 118

Changes of Record/Playback Conditions....................................................................................................... 122

Setting and Confirming the Record/Playback Conditions ............................................................................. 123

Flex Record/Playback Method....................................................................................................................... 134

Direct Record/Playback Method.................................................................................................................... 141

ROM Playback by Inputting Address Code................................................................................................... 144

Direct ROM Playback Method ...................................................................................................................... 148

Stopping Record/Playback Temporarily (by the PAUSE Command) ........................................................... 150

Transferring Data to/from External Memories .............................................................................................. 151

Record/Playback by Inputting/Outputting Voice Data via Data Bus............................................................. 157

Suppression of Pop Noise at AOUT Output (by the LEV Command) .......................................................... 161

APPLICATION CIRCUIT.................................................................................................................................. 163

PACKAGE DIMENSIONS................................................................................................................................. 164

REVISION HISTORY ........................................................................................................................................ 166

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