MSA180 查看數據表（PDF） - Oki Electric Industry

零件编号

产品描述 (功能)

生产厂家

MSA180

Piezo Speaker Amplifier

Oki Electric Industry 

¡ Semiconductor

MSA180

Application Example for Circuits Containing MSM6375/MSM6650 Family Speech Synthesizers

The example below shows how to connect the MSA180 with the MSM6375 or MSM6650 family

speech synthesizers using the synthesizer's BUSY output to control operation and standby mode of

the MSA180. As voice output stops, BUSY rises to the "H" level. For this reason, MODE2 is used to

control operation and standby modes of the MSA180.

VDD

VDD

AOUT

MSM6650 BUSY

or MSM6375

GND

BASE

VCC

PIEZO SPEAKER

MODE2

SP

R1

C1 AIN MSA180

MODE1

SP

GND

Notes: 1. The diode on AOUT reduces pop noise.

2. This circuit makes use of the BUSY output of the speech synthesizer.

3. As the voice reproduction stops, BUSY outputs a "H" level to MODE2, setting the stand-

by function.

4. If MODE2 is used, MODE1 must be connected to GND.

5. Leave the BASE pin open if it is not used.

9/16

Share Link: