Datasheet > MSM6688_07

MSM6688_07

更新时间： 2024-12-01 04:38:55

品牌	Logo	应用领域
冲电气 - OKI		PC
页数	文件大小	规格书
167页	962K
描述
ADPCM Solid-State Recorder IC

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数据手册

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MSM6688_07 数据手册

FEDL6688-6688L-04

Issue Date: Mar 12. 2002

OKI Semiconductor

MSM6688/6688L

ADPCM Solid-State Recorder IC

GENERAL DESCRIPTION

The MSM6688/6688L is a “solid-state recorder” IC developed using the ADPCM method. By externally

connecting a microphone, a speaker, a speaker drive amplifier, and a dedicated register to store ADPCM data, it

can record and play back voice data in a manner similar to a tape recorder.

The MSM6688 supports 5 V operation and has a stand-alone mode and a microcontroller interface mode.

The MSM6688L supports 3 V operation and controls recording/playback in microcontroller interface mode.

In the stand-alone mode, recording/playback conditions can be selected by pins and the MSM6688/6688L can be

controlled by a simple drive timing. In the microcontroller interface mode, recording/playback can be controlled

by commands from the microcontroller. In the microcontroller interface mode, the MSM6688/6688L is much

more flexible than in the stand-alone mode.

In addition, the MSM6688/6688L can form easily a recording and playback circuit with fixed messages by

connecting serial registers and serial voice ROMs as external memories.

Note: This data sheet explains a stand-alone mode and a microcontroller interface mode, separately.

Differences between MSM6688 and MSM6688L

Parameter

Operating voltage

MSM6688

3.5 to 5.5 V

MSM6688L

2.7 to 3.6 V

Standalone mode,

Control mode

Microcontroller interface mode only

1/4 to 3/4 V_DD

Microcontroller interface mode

Full scale of A/D and D/A

converters

0 to V_DD

V_DD

128

V_DD

Voice detection level for voice

triggered starting

32M bits (max.)

4M bits (MSM6684B)

8M bits (MSM6685A)

4M bits (max.)

4M bits (MSM66V84B)

External-only register

1/167

12 3 4 5 6 7...167

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