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.
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 Type | Single-ended |
| Analog Output Type | Single-ended |
| Channels In | 2 |
| Channels Out | 2 |
| Control Interface | SPI/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 |
| Features | VSS, HD bass, ReTune™, 3D, EQ, DRC, DMIC interface, programmable ALC & noise gate, HP/speaker amps, PLL, FLL |
| Package | 49 WLCSP |