Skip to main content
Active
Codecs

WM8963

Ultra-Low-Power Portable Codec with Speaker and Headphone Drivers

WM8963 Overview

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.

CIRRUS®
CIRRUS ROCKS®
ENGINEERED TO ROCK®
INNOVATION THAT ROCKS®

Product Features

  • DAC SNR 98dB (‘A’ weighted), THD -84 dB at 48 kHz, 1.8 V

  • ADC SNR 94dB (‘A’ weighted), THD -85 dB at 48 kHz, 1.8 V

  • Stereo Class D speaker driver

    • 2 W per channel into 4 W BTL speakers

    • 2 W mono mode (for improved THD)

    • Flexible internal switching clock

  • Class W ultra-low power headphone driver

    • Up to 31 mW per channel output power at 1% THD+N

    • Support for 2 stereo headphone outputs

    • Ground Referenced

    • Low offset (+/- 1.4 mV)

    • 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

    • 5.0m W headphone playback

    • 6.1m W analogue record mode

    • 1.8 V analogue & digital I/O supplies

    • 1.2 V digital core supply, for low power operation. 1.7 V (min) required for full range of clocking ratios

    • 5.5 V (max) speaker supply for high power output

  • 2-wire I²C and 3- or 4-wire SPI serial control interface

  • Standard sample rates from 8 kHz to 96 kHz

  • 3.6 x 3.9 mm WLCSP 49 pin

Parametric Specifications

Analog Input TypeSingle-ended
Analog Output TypeSingle-ended
Channels In2
Channels Out2
Control InterfaceSPI/I²C
ADC Dynamic Range (dB)94
DAC Dynamic Range (dB)98
ADC THD+N (dB)-82
DAC THD+N (dB)-85
Sample Rate (kHz)96
Analog Power Supply (V)1.7-2
Digital Power Supply (V)1.2
Logic Power Supply (V)1.8
Power Consumption (mW)6.1-26.5
FeaturesVSS, HD bass, ReTune™, 3D, EQ, DRC, DMIC interface, programmable ALC & noise gate, HP/speaker amps, PLL, FLL
Package49 WLCSP

Design Resources

Sales Support

Select your location to find a sales representative or distributor for pricing, availability, and next steps for purchasing this product.
Contact location filters