Smart Codec with Voice Processor DSP

The WM5102 is a highly integrated, low power, digital core audio system that provides a powerful combination of fixed-function signal processing blocks with a programmable DSP. These are supported by a fully-flexible, all-digital audio mixing and routing engine with sample rate converters, for wide use-case flexibility. The programmable DSP supports a range of audio processing software packages (supplied separately), or user-programmed solutions can also be supported. Fixed-function signal processing blocks include filters, EQ, dynamics processors and sample rate converters.

Innovation that Rocks® Cirrus RocksTM Cirrus®


Smart Codecs, Audio DSPs


  • Smart codec with integrated voice processor DSP
  • Programmable DSP capability for audio processing
  • Fixed function signal processing functions
    • Wind noise, sidetone and other programmable filters
    • Dynamic Range Control, Fully parametric EQs
    • Tone, Noise, PWM, Haptic control signal generators
  • Multi-channel asynchronous sample rate conversion
  • Integrated 6/7 channel 24-bit hi-fi audio hub codec
    • 6 ADCs, 96 dB SNR microphone input (48kHz)
    • 7 DACs, 113 dB SNR headphone playback (48kHz)
  • Audio inputs
    • Up to 6 analog or digital microphone inputs
    • Single-ended or differential mic/line inputs
  • Multi-purpose headphone / earpiece / line output drivers
    • 2 stereo output paths
    • 29mW into 32Ω load at 0.1% THD+N
    • 100mW into 32Ω BTL load at 5% THD+N
    • 6.5mW typical headphone playback power consumption
    • Pop suppression functions
    • 2.3µVRMS noise floor (A-weighted)
  • Mono BTL earpiece output driver
  • 2 x 2W stereo Class D speaker output drivers
    • Direct drive of external haptics vibe actuators
  • Two-channel digital speaker (PDM) interface
  • SLIMbus® audio and control interface
  • 3 full digital audio interfaces
    • Standard sample rates from 4kHz up to 192kHz
    • Ultrasonic accessory function support
    • TDM support on all AIFs
    • 8 channel input and output on AIF1
  • Flexible clocking, derived from MCLKn, BCLKn or SLIMbus
  • 2 low-power FLLs support reference clocks down to 32kHz
  • Advanced accessory detection functions
    • Low-power standby mode and configurable wake-up
  • Configurable functions on 5 GPIO pins
  • Integrated LDO regulators and charge pumps
  • Support for single 1.8V supply operation
  • Small WLCSP package, 0.4mm pitch

Parametric Specifications

DACs 7
ADCs 6
DAC THD+N (dB) -85
ADC THD+N (dB) -86
Sample Rate (kHz) 4-192
Analog Power Supply (V) 1.8
Digital Power Supply (V) 1.2;
Power Consumption (mW) 7.6-1606
Package 137 WLCSP

Software and Tools


v3.11.0.10 : 42.4 Mb

WM5102 Setup

Feb 4, 2015, Rev 2.9 : 15661 Kb


Jan 1, 1977, Rev 2.0.3 : 1445 Kb


Comprehensive Solutions