Product specifications
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.
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
o 2 W per channel into 4 W BTL speakers
o 2 W mono mode (for improved THD)
o Flexible internal switching clock
• Class W ultra-low power headphone driver
o Up to 31 mW per channel output power at 1% THD+N
o Support for 2 stereo headphone outputs
o Ground Referenced
o Low offset (+/- 1.4 mV)
o Pop and click suppression
• Microphone Interface
o Four stereo, single-ended analogue inputs
o Digital microphone interface
o Integrated low noise MICBIAS
o Integrated LDO to generate MICVDD supply
o Programmable ALC / Limiter and Noise Gate
• Programmable Audio Enhancement DSP with Presets
o Virtual Surround Sound
o ReTune™ frequency linearisation
o Multi-Band Compression (MBC)
• Fixed Audio Processing DSP
o LPF/HPF
o 3D stereo widening
o 5-band Parametric EQ
o Dynamic range controller
o Beep generator
• Integrated FLL for flexible audio system clocking
External clock outputs from FLL
• Low power consumption
o 5.0m W headphone playback
o 6.1m W analogue record mode
o 1.8 V analogue & digital I/O supplies
o 1.2 V digital core supply, for low power operation. 1.7 V (min) required for full range of clocking ratios
o 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
