AMIS-14935 Audio Amplifier
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.
• Low Operating Current: 120µA Typical
• Low Operating Voltage: 0.9V minimum
• Gain Set by External Resistors
• Hearing aid applications
• High impedance speaker/transducer applications
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 & 16Ω
• 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.