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Cirrus Logic, Inc. - WM8963
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Ultra Low Power Portable Codec with Speaker and Headphone Drivers

Model: WM8963

  • DAC SNR 98dB (‘A’ weighted), THD -84dB at 48kHz, 1.8V
  • ADC SNR 94dB (‘A’ weighted), THD -85dB at 48kHz, 1.8V
  • Stereo Class D speaker driver
  • 2W per channel into 4W BTL speakers
  • 2W mono mode (for improved THD)
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The ultra-low power WM8963 stereo codec features a programmable audio enhanced DSP, 2 watt per channel speaker drivers and Class W headphone drivers. An integrated charge pump provides a ground referenced output that eliminates the need for DC-blocking capacitors on the headphone outputs and incorporates a dual-mode charge pump architecture to optimize efficiency and power consumption during playback. 

  • DAC SNR 98dB (‘A’ weighted), THD -84dB at 48kHz, 1.8V
  • ADC SNR 94dB (‘A’ weighted), THD -85dB at 48kHz, 1.8V
  • Stereo Class D speaker driver
  • 2W per channel into 4W BTL speakers
  • 2W mono mode (for improved THD)
  • Flexible internal switching clock
  • Class W ultra-low power headphone driver
  • Up to 31mW per channel output power at 1% THD+N
  • Support for 2 stereo headphone outputs
  • Ground referenced
  • Low offset (+/- 1.4mV)
  • Pop and click suppression
  • Microphone Interface
  • Four stereo, single-ended analogue inputs
  • Digital microphone interface
  • Integrated low noise MICBIAS
  • Integrated LDO to generate MICVDD supply
  • Programmable ALC/Limiter and Noise Gate
  • Programmable audio enhancement DSP with presets
  • Virtual surround sound
  • ReTune™ frequency linearisation
  • Multi-band compression (MBC)
  • Fixed audio processing DSP
  • LPF/HPF
  • 3D stereo widening
  • 5-band Parametric EQ
  • Dynamic range controller
  • Beep generator
  • Integrated FLL for flexible audio system clocking
  • External clock outputs from FLL
  • Low power consumption
  • 5.0mW headphone playback
  • 6.1mW analogue record mode
  • 1.8V analogue and digital I/O supplies
  • 1.2V digital core supply, for low power operation. 1.7V (min) required for full range of clocking ratios
  • 5.5V (max) speaker supply for high power output
  • 2-wire I²C and 3 or 4 wire SPI serial control interface
  • Standard sample rates from 8kHz to 96kHz
  • 3.6 x 3.9mm WLCSP 49 pin
 
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