The solution is enabled by Nuvoton’s on-chip silicon signal processing design, including the Low Latency (LL) decimator (for down-sampling)/ interpolation (for up-sampling) digital linear and non-linear filters, these low pass filters are valuable additions to the ANC (active noise cancellation) and wireless real-time stream application.
The NAU88L21CYG is an ultra-low power high-performance audio codec that supports both analog and digital audio functions. It includes one I2S/ PCM interface, one set of digital microphone interfaces, one digital mixer, two high-quality DACs and ADCs, and one stereo class-G headphone amplifier. The advanced on-chip signal processing engine includes dynamic range compressor (DRC), programmable bi-quad filter, as well as an integrated frequency-locked loop (FLL) to support various input clocks.
NAU88L21CYG Key Features
- Stereo digital and analog microphones can be switchable by hardware register settings for wearables & gaming devices.
- Provides Low Latency decimator (for down sampling)/ interpolation (for up sampling) digital linear and non-linear filter.
- Group delay of ADC/ DAC digital filters can reduce one-six latency time compared to the conventional Audio Codec without these filters.
