Featuring 122 dB DAC to headphone signal-to-noise ratio (SNR) and headphone total harmonic distortion (THD+N) of 85 dB, while also supporting common audio samples rates from 8 kHz up to 24-bit/192 kHz, the WM8998 delivers loud, clear voice calls and exceptional audio playback for music and video. Small and cost-effective, the WM8998 offers flexible digital routing and mixing which supports a wide range of system architecture and use cases, while its low DAC to headphone power consumption of 6.7 mW significantly maximises battery life. The WM8998 also features an IEC-60958-3 compatible transmitter to drive S/PDIF audio input of consumer electronics equipment.
The device includes two efficient, stereo 100 dB SNR Class D speaker output drivers; a 100 mW, 127 dB SNR earpiece output driver; three concurrent microphone inputs with 96 dB SNR; programmable equaliser; wind noise, side tone and other programmable filters; and configurable dynamic range controllers (DRCs). Its fully flexible digital routing and mixing core supports a wide variety of use cases and system architectures. Its product / Linux drivers are based on the same platform as many other products in the Wolfson Audio Hub family, helping to simplify software integration by allowing designers to develop a range of products with different feature sets.
The company adds that the WM8998 complements its Audio Hub family, offering innovation for mobile devices from high-tier devices, through to mid- and lower-tier products.
Wolfson Microelectronics/Cirrus Logic; www.cirrus.com