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AS3543 Audio Codec

High end stereo audio Codec with power management system


High performance, low power, Analog audio front end with integrated dual channel 18bit DAC(102dB SNR, 8-48kHz), 20bit ADC(83dB SNR, 8-24kHz), headphone drive capability and multiple voltage supplies.

Key Features

  • 5mW playback power consumption
  • On chip power management
  • High performance Codec

Key Benefits

  • Extend battery life
  • Reduces system component count
  • Ideal for voice recording and playback

Product Facts

Power Management "DCDC StepUp: 1x60mA @ 12V
DCDC StepDown: 2x250mA with DVM
LDO: 3x200mA, 1x50mA
Charge Pump: -
Current Sink: 1x36mA (prog., log. Dimming)"
Main Audio Features "Headphone Amp: 1x
Line In/Out: 1x
Microphone In: 1x
Audio Mix: yes"
Audio Codec SNR "DAC: 100dB
ADC: 85dB"
Speaker Amplifier
Main Interface & Control "Gen. Purpose ADC: 10bit
I2C & I2S: yes
RES & WDT: yes
DRM Enabled (UID): 64bit"
USB Charger with Temp Supervision
+ Current Limitation
+ Battery Switch
Boot ROM for Start-up Sequences 5 (25 voltage combinations each)
Package BGA-64 (6x6)

Additional Information


Portable Digital Audio/Video Player and Recorder
PDA, Smartphone