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AMIS
AMIS

AMIS-14935 Datasheet Preview

AMIS-14935 Datasheet

Audio Amplifier

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AMIS-14935 pdf
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AMIS-14935 Audio Amplifier
Description
The AMIS-14935 (former MSC-LX1792) offers a patent
pending, low-voltage, low-power and high efficiency
amplifier for driving a high impedance speaker such as a
hearing aid receiver or a headset. The AMIS-14935 consists
of a pre-amplifier followed by a fixed gain class D amplifier.
Key Features
• Low Operating Current: 120µA Typical
• Low Operating Voltage: 0.9V minimum
• Gain Set by External Resistors
Applications
• Hearing aid applications
• High impedance speaker/transducer applications
Product Highlight
The input resistor and feedback resistor is external in the
AMIS-14935 making it possible to set the gain arbitrarily, up
to approximately 40dB. The feedback resistor can also be
potentiometer to facilitate volume control.
• 3 output switch resistance settings: 48, 24 & 16
• 5µVrms Input Referred Noise
Important: For the most current data, consult AMI
Semiconductor’s website: http://www.amis.com.
Package Order Info
TJ (°C): 10…15
J: Ceramic Dip 14-Pin
NQFP: Plastic MLPM 8-Pin
BD: Bare Die
Note for hearing aid applications are covered by Knowles patents numbers US
4,592,087 & 4,689,819: AMI Semiconductor policy is not to sell the AMIS-14935
into hearing aid applications unless a patent license exist between customer
and Knowles Corporation. Please contact AMIS for assistance with this.
AMI Semiconductor
www.amis.com
1



AMIS
AMIS

AMIS-14935 Datasheet Preview

AMIS-14935 Datasheet

Audio Amplifier

No Preview Available !

AMIS-14935 pdf
AMIS-14935 Audio Amplifier
Absolute Maxium Ratings
Input Logic Supply Voltage (VDD) -0.3V to +3.0V
Operating Temperature Range 10°C to 55°C
Note: Exceeding these ratings could cause damage to
the device. All voltages are with respect to Ground.
Currents are positive into, negative out of specified
terminal.
Package Pin Out
PACKAGE
(Top View)
Settings
Pin
IMPSEL
IMPSEL=VSS
16
PACKAGE
(Top View)
IMPSEL=VDD
24
IMPSEL=Floating
48
Functional Pin Description
Pin Name
VDD
VSS
IN
OUTP
OUTN
PREOUT
IMPSEL
Pin No
14 Pin J
(Evaluation
Samples)
13
2
8
14
1
9
6
Pin No Description
8 Pin
8 Supply Voltage
1 Ground
5 Analog Audio Input
7 Positive Output Voltage
2 Negative Output Voltage
6 Pre-Amplifier Output
3 Output Resistance Select. See Settings table below for selections.
AMI Semiconductor
www.amis.com
2


Part Number AMIS-14935
Description Audio Amplifier
Maker AMIS
Total Page 9 Pages
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AMIS-14935 pdf
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