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What is MSA180?

This electronic component, produced by the manufacturer "OKI electronic", performs the same function as "Piezo Speaker Amplifier".


MSA180 Datasheet PDF - OKI electronic

Part Number MSA180
Description Piezo Speaker Amplifier
Manufacturers OKI electronic 
Logo OKI electronic Logo 


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Total 17 Pages



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E2D0049-39-21
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¡¡SemicondSucetormiconductor
MSA180
Piezo Speaker Amplifier
This version: FeMb.S1A991980
Previous version: May. 1997
GENERAL DESCRIPTION
The MSA180 is a piezo speaker driver for OKI's speech synthesizers. Its voltage gain can be adjusted
by a factor of up to 10. The differential output provides an amplitude of twice the voltage supply.
A separate output connects to the base of an external transistor for controlling system voltage.
A standby function eliminates power loss when no input signal is present.
FEATURES
• Power supply voltage
: 2.0 V to 6.0 V (single supply voltage)
• Low current consumption
• Standby current
: 4.2 mA typ (VCC=3 V, no load)
: <1 mA
• Differential output
: Twice the supply voltage (maximum output
amplitube)
• Package options :
8-pin plastic DIP (DIP8-P-300-2.54) (Product name: MSA180RS)
8-pin plastic SOP (SOP8-P-250-1.27-K) (Product name: MSA180MS-K)
Chip
BLOCK DIAGRAM
VCC
MODE1
MODE2
AIN
GND
VCC VCC
Logic
18 kW
6.6 kW
+
AV=20
+
AV=20
6.6 kW
2.2 kW
BASE
1.3 kW
SP
SP
1/16

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MSA180 equivalent
¡ Semiconductor
MSA180
APPLICATION CIRCUITS
How to Adjust Gain
Gain control adjustment of the input signal level is shown below. When using OKI's speech
synthesizer devices, insert a diode in series with the variable resistor to reduce pop noise.
VDD
Signal
R1
100 kW
C1
0.1 mF
BASE
MODE2
VCC
SP
AIN MSA180
MODE1
GND
SP
PIEZO SPEAKER
The circuit below also implements gain adjustment for a higher impedance signal source.
VDD
Signal
R1
20 kW
C1
0.1 mF
BASE
MODE2
VCC
SP
AIN MSA180
MODE1
GND
SP
PIEZO SPEAKER
5/16


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Part Details

On this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for MSA180 electronic component.


Information Total 17 Pages
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Download [ MSA180.PDF Datasheet ]

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Featured Datasheets

Part NumberDescriptionMFRS
MSA180The function is Piezo Speaker Amplifier. OKI electronicOKI electronic

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