Ultra Low Power Portable Codec with Speaker and Headphone Drivers
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 ROCKS® CIRRUS® ENGINEERED TO ROCK® INNOVATION THAT ROCKS®
Technology
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
- 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
| DACs | 2 |
| ADCs | 2 |
| DAC THD+N (dB) | -85 |
| ADC THD+N (dB) | -82 |
| Sample Rate (kHz) | 96 |
| Analog Power Supply (V) | 1.7-2 |
| Power Consumption (mW) | 6.1-26.5 |
| Package | 49 WLCSP |
