Anpac Semiconductor Ltd.

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AP1085 - Mono Microphone Amplifier with Variable Gain Control

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General Descriptions :

AP1085 is a differential input and differential output mono microphone amplifier. It is capable of delivering 40mW average power into 8Ω with 0.11% THD+N. The device operates from 2.2V to 5V.

It is designed with flexible gain setting and high PSRR for different kinds of application. Few external components can be added as a low pass filter for certain frequencies amplification.

AP1085 consumes only 1.8mA of supply current during operation. It provides superior power saving for battery operated portable devices


Key Specifications :

  • Supply current 1.8mA (typ)
  • Standby current 0.1uA (typ)
  • Signal to Noise Ratio (20Hz to 20kHz) 66dB (typ)
  • Total Harmonic Distortion + Noise (Vin=100mVpp) 0.11% (typ)
  • High PSRR @ 217Hz 95dB (typ)


Features :

  • Ultra low power consumption
  • Space-saving package
  • Low external component count and costs
  • High audio quality
  • Excellent RF immunity with high PSRR
  • Differential inputs and outputs
  • Adjustable 3 -39dB microphone gain
  • Selectable microphone mute
  • Power-saving shutdown mode
  • Amplify ambient audio signal selection