WM8994 Overview
FEATURES The WM8994 is a highly integrated ultra-low power hi-fi CODEC designed for smartphones and other portable devices rich in multimedia features. An integrated stereo class D/AB speaker driver and class W headphone driver minimize power consumption during audio playback. The device requires only two voltage supplies, with all other internal supply rails generated from integrated LDOs.
WM8994 Key Features
- Hi-fi 24-bit 4-channel DAC and 2-channel ADC
- 100dB SNR during DAC playback (‘A’ weighted)
- Smart MIC interface
- Power, clocking and data input for up to four digital MICs
- High performance analogue MIC interface
- MIC activity detect & interrupt allows processor to sleep
- 2W stereo (2 x 2W) class D/AB speaker driver
- Capless Class W headphone drivers
- Integrated charge pump
- 5.3mW total power for DAC playback to headphones