Semiconductor MSA180 Piezo Speaker Amplifier This version: F

The Datasheet Archive - 100 Million Datasheets from 7500 Manufacturers.

Semiconductor MSA180 Piezo Speaker Amplifier This version: F

Datasheet Thumbnail

Top Searches for this datasheet

E2D0049-39-21 Semiconductor
Semiconductor MSA180
Piezo Speaker Amplifier
This version: Feb. 1999 MSA180 Previous version: May. 1997
GENERAL DESCRIPTION
MSA180 piezo speaker driver OKI's speech synthesizers. voltage gain adjusted factor differential output provides amplitude twice voltage supply. separate output connects base external transistor controlling system voltage. standby function eliminates power loss when input signal present.
FEATURES
Power supply voltage (single supply voltage) current consumption (VCC=3 load) Standby current Differential output Twice supply voltage (maximum output amplitube) Package options 8-pin plastic (DIP8-P-300-2.54) (Product name: MSA180RS) 8-pin plastic (SOP8-P-250-1.27-K) (Product name: MSA180MS-K) Chip
BLOCK DIAGRAM
BASE
MODE1 MODE2
Logic
AV=20
AV=20
1/16
Semiconductor
MSA180
CONFIGURATION (TOP VIEW)
MODE2 MODE1 BASE
8-Pin Plastic 8-Pin Plastic
DESCRIPTIONS
Symbol Type Power supply pin. Ground pin. Voice signal input pin. This switches device between operation standby modes. MODE1 operation mode MODE1 standby mode MODE1 pin. When MODE1 used, MODE2 must connected VCC. This switches device between operation standby modes. MODE2 operation mode VCC-1.0 MODE1 standby mode VCC-0.3 MODE1 pin. When MODE2 used MODE1 must connected GND. This connected base external transistor. BASE external transistor used control system voltage, this must left open. This speaker output that provides signals with same phase input. This speaker output that provides signals with inverted phase input. Description
2/16
Semiconductor
MSA180
ABSOLUTE MAXIMUM RATINGS
(Ta=25°C unless otherwise specified) Parameter Power Supply Voltage Symbol Condition Rating -0.3 +6.5 Unit Remarks Input Voltage -0.3 VCC+0.3 MODE1 MODE2 BASE Maximum Output Current Power Dissipation Junction Temperature Storage Temperature IOMAX TjMAX TSTG VCC=3 Ta=25°C +150 type type Chip
RECOMMENDED OPERATING CONDITIONS
Parameter Power Supply Voltage Load Impedance Peak Load Current Input Voltage Input Voltage Operating Temperature Symbol IO-P VIH1 VIH2 VIL1 VIL2 Condition
Applied MODE1 Applied MODE2 Applied MODE1 Applied MODE2
Min. VCC-0.3
Max. VCC-1.0
Unit
3/16
Semiconductor
MSA180
ELECTRICAL CHARACTERISTICS
(Ta=25°C, VCC=2 unless otherwise specified) Parameter Voltage Gain Input Resistance Output Voltage Output Offset Voltage Output Voltage Output Voltage Symbol signal SP-SP Condition VCC=2 VCC=6 VCC=2 VCC=6 Min. 4.25 4.25 17.2 VCC-0.25 Typ. 24.6 Max. 5.75 5.75 11.5 32.0 0.25 Unit
IOUT=-10 IOUT=10 VCC=3 BASE=Open MODE1=MODE2=GND MODE1=MODE2=VCC AIN=Open
Operating Current
Circuit Current Standby Mode
ICCS
MODE1=GND MODE2=VCC VCC=2 VCC=6 MODE1=VCC MODE2=VCC MODE1=GND MODE2=GND VCC=2 BASE=VCC VCC=6 BASE=VCC
0.18 0.52 -160
0.26 0.74
0.34 0.96
Input Bias Voltage MODE1 Input Current MODE2 Input Current MODE1 Input Current MODE2 Input Current
VAIN IIH1 IIH2 IIL1 IIL2 IBO1
Base Output Current IBO2
Typical value 0.625 0.25. Maximum value 0.1. Typical value VAIN 0.12 0.02.
4/16
Semiconductor
MSA180
APPLICATION CIRCUITS
Adjust Gain Gain control adjustment input signal level shown below. When using OKI's speech synthesizer devices, insert diode series with variable resistor reduce noise.
Signal BASE MODE2 MSA180
PIEZO SPEAKER
MODE1
circuit below also implements gain adjustment higher impedance signal source.
BASE Signal MODE2
MSA180
PIEZO SPEAKER
MODE1
5/16
Semiconductor Connect Piezo Speaker
MSA180
achieve full gain level even supply voltage (VCC=3 connect coil series with piezo speaker.
BASE MODE2
MSA180
COIL
PIEZO SPEAKER
MODE1
resonance frequency that occurs circuit containing coil piezo speaker
[Hz]
Where piezo capacitance coil inductance. instance, piezo capacitance range kHz, then coil inductance should
6/16
Semiconductor
MSA180
Application Example Circuits Containing MSM6378A/MSM6379 Speech Synthesizers This example shows connect MSA180 with MSM6378A MSM6379 speech synthesizer using external transistor MODE1 pin. analog output both synthesizers lowers their standby mode. this reason, voice signal used control operation standby modes MSA180. circuit also controls voltage external transistor. this function used, leave BASE open.
START SWITCH
MSM6378A MSM6379
AOUT BASE MODE2 MSA180 PIEZO SPEAKER
MODE1
Operation Flow When start switch pressed, power supplied pins MSM6378A MSM6379, operation mode invoked. Voice output level then rises. When operation mode involved, voice signal rises above level, MODE1 MSA180 goes high (H). BASE MSA180 goes drive external transistor power-supply control. audio continues operate using external transistor power supply. device continues operate voice sounds, even start switch released this time. When sound ends, MODE1 MSA180 falls (L), voice signal falls level, standby mode ensues. external transistor power-supply control switched off, switching voice synthesizer because power supply switched off.
7/16
Semiconductor
MSA180
Supplemental Information When Using Voice Signal MODE1 When using voice signal MODE1, circuit below, care must taken regarding voice input level. Application voice signal below VIH1level MODE1 causes MSA180 switch into standby mode, interrupting voice reproduction flow, causing undesired noises.
Signal BASE MODE2 MSA180 PIEZO SPEAKER
MODE1
When using voice signal lower than VIH, refer circuit below. With low-pass filter consisting voice levels lower than VIH1 passed through. However, select values such that input voltage MODE1 greater than VIH2.
Signal BASE MODE2 MSA180 PIEZO SPEAKER
MODE1
cutoff frequency low-pass filter calculated follows:
[Hz]
instance, cutoff frequency lower cutoff frequency, larger value
8/16
Semiconductor
MSA180
Application Example Circuits Containing MSM6375/MSM6650 Family Speech Synthesizers example below shows connect MSA180 with MSM6375 MSM6650 family speech synthesizers using synthesizer's BUSY output control operation standby mode MSA180. voice output stops, BUSY rises level. this reason, MODE2 used control operation standby modes MSA180.
MSM6650 MSM6375
AOUT BUSY BASE MODE2 MSA180 PIEZO SPEAKER
MODE1
Notes: diode AOUT reduces noise. This circuit makes BUSY output speech synthesizer. voice reproduction stops, BUSY outputs level MODE2, setting standby function. MODE2 used, MODE1 must connected GND. Leave BASE open used.
9/16
Semiconductor
MSA180
Application Example Circuits Containing MSM6388/MSM6588 Speech Recorders example below shows connect MSA180 with MSM6388 MSM6588 family speech recording using recorders' STBY output control operation standby mode MSA180. voice output stops, STBY rises level. this reason, MODE2 used control operation standby modes MSA180.
AOUT BASE MODE2 MSA180 PIEZO SPEAKER
MSM6388 CS3(STBY) MSM6588
MODE1
Notes: diode AOUT reduces noise. This circuit makes STBY output speech synthesizer. voice reproduction stops, STBY outputs level MODE2, setting standby function. MODE2 used, MODE1 must connected GND. Leave BASE open used.
10/16
Semiconductor
MSA180
Application Examples Circuits Containing Microcontroller Other Peripheral Devices circuit below uses voice signal which rises high operation mode. MODE1 used. sure connect MODE2 pin.
Signal BASE MODE2 Control Signal Input MSA180 PIEZO SPEAKER
MODE1
Note: BASE used, leave open. circuit below, signal falls operation mode. MODE2 used. sure connect MODE1 pin.
Control Signal Input BASE Signal MODE2 MSA180 PIEZO SPEAKER
MODE1
Note: BASE used, leave open.
11/16
Semiconductor
MSA180
OPERATING CHARACTERISTICS
Power Supply Voltage No-Load Circuit Current
No-load circuit current [mA]
No-load circuit current [mA]
No-Load Circuit Current Temperature Characteristic VCC=6
Power supply
VCC=3 VCC=2
Temperature [°C]
Output Voltage Characteristic
Output voltage VCC-VOH Output voltage VCC-VOH
VCC=6 -0.5 -1.5 VCC=2 VCC=3
-0.5 -1.5
Output Voltage Temperature Characteristic Ta=85°C Ta=25°C Ta=-40°C
VCC=3
Output current [mA]
Output current [mA]
Output Voltage Characteristic
Output voltage
Output voltage
Output Voltage Temperature Characteristic
VCC=2 VCC=6 Output current [mA] VCC=3
VCC=3
Ta=25°C Ta=-40°C
Ta=85°C Output current [mA]
12/16
Semiconductor
MSA180
Voltage gain, [Magnification]
Ta=25°C
Ta=85°C
Voltage gain, [Magnification]
Power Supply Voltage Voltage Gain
Voltage Gain Temperature Characteristics
VCC=3
VCC=6
VCC=2
Ta=-40°C
Power Supply Voltage MODE1 Input voltage Input Current
Temperature [°C] MODE2 Input Voltage Input Current
MODE1 input current [µA]
MODE2 input current [µA]
VCC=6
-100 -120 VCC=6 MODE2 input voltage VCC=3 VCC=2
MODE1 input voltage
BASE output current [mA]
BASE Output Current Temperature Characteristic VCC=6 Ta=25°C Ta=85°C
Ta=-40°C
BASE voltage
13/16
Semiconductor
MSA180
CONFIGURATION
Chip Layout Chip size Chip thickness size Board potential
2.00 2.00 potential
Y-axis
X-axis
Coordinates (Chip center: X=0, Y=0)
name MODE2 BASE MODE1 X-coordinate [mm] -655 -835 -835 -185 Y-coordinate [mm] -835 -789 -789 -835
14/16
Semiconductor
MSA180
PACKAGE DIMENSIONS
(Unit
DIP8-P-300-2.54
Package material Lead frame material treatment Solder plate thickness Package weight
Epoxy resin alloy Solder plating more 0.46 TYP.
15/16
Semiconductor
MSA180
(Unit
SOP8-P-250-1.27-K
Mirror finish
Package material Lead frame material treatment Solder plate thickness Package weight
Epoxy resin alloy Solder plating more 0.10 TYP.
Notes Mounting Surface Mount Type Package SOP, QFP, TSOP, TQFP, LQFP, SOJ, (PLCC), SHP, surface mount type packages, which very susceptible heat reflow mounting humidity absorbed storage. Therefore, before perform reflow mounting, contact Oki's responsible sales person product name, package name, number, package code desired mounting conditions (reflow method, temperature times).
16/16
E2Y0002-29-11
NOTICE
information contained herein change without notice owing product and/or technical improvements. Before using product, please make sure that information being referred up-to-date. outline action examples application circuits described herein have been chosen explanation standard action performance product. When planning product, please ensure that external conditions reflected actual circuit, assembly, program designs. When designing your product, please product below specified maximum ratings within specified operating ranges including, limited operating voltage, power dissipation, operating temperature. assumes responsibility liability whatsoever failure unusual unexpected operation resulting from misuse, neglect, improper installation, repair, alteration accident, improper handling, unusual physical electrical stress including, limited exposure parameters beyond specified maximum ratings operation outside specified operating range. Neither indemnity against license third party's industrial intellectual property right, etc. granted connection with product and/or information drawings contained herein. responsibility assumed infringement third party's right which result from thereof. products listed this document intended general electronics equipment commercial applications (e.g., office automation, communication equipment, measurement equipment, consumer electronics, etc.). These products authorized system application that requires special enhanced quality reliability characteristics system application where failure such system application result loss damage property, death injury humans. Such applications include, limited traffic automotive equipment, safety devices, aerospace equipment, nuclear power control, medical equipment, life-support systems. Certain products this document need government approval before they exported particular countries. purchaser assumes responsibility determining legality export these products will take appropriate necessary steps their expense these. part contents cotained herein reprinted reproduced without prior permission. MS-DOS registered trademark Microsoft Corporation.
Copyright 1999 Electric Industry Co., Ltd.
Printed Japan

Semiconductor MSA180 Piezo Speaker Amplifier This version: F

Top Searches for this datasheet

Other recent searches