Описание
The WM8594 is a high performance multi-channel audio codec with flexible input/output selection and digital and analog volume control. Features include a 24-bit stereo ADC with digital gain control, two 24-bit DACs with independent volume control and clocking, and a range of input/output channel selection options with analog volume control for flexible routing within current and future audio systems.
- Multi-channel codec with 5 stereo input selector and 3 stereo output selector
- 4-channel DAC, 2-channel ADC
- 5x2Vrms stereo input selector with 3×2 channel analog bypass to output selector
- 3x2Vrms stereo output selector
- Stereo headphone driver
- Audio performance
- DAC: 100dB SNR typical (‘A’ weighted @ 48kHz)
- DAC: -87dB THD typical
- ADC: 96dB SNR typical (‘A’ weighted @ 48kHz)
- ADC: -80dB THD typical
- Independent sampling rate for ADC and DACs
- Independent sampling rate for DAC1 and DAC2
- DACs sampling frequency 32kHz – 192kHz
- ADC sampling frequency 32kHz – 96kHz
- DAC digital volume control +12dB to -100dB in 0.5dB steps
- ADC digital volume control from +30dB to -97dB in 0.5dB steps
- ADC input analog boost control, selectable from 0dB, +3dB, +6dB and +12dB
- Output analog volume control +6dB to -73.5dB in 0.5dB steps with zero cross or soft ramp to prevent pops and clicks
- Headphone drive capability on one stereo output with jack detect
- 2 and three-wire serial control interface with readback and hardware reset, mute and powerdown pins
- Independent master or slave clocking modes
- Programmable format audio data interface modes
- I²S, LJ, RJ, DSP
- 3.3V / 9V analog, 3.3V digital supply operation
- 48-lead TQFP package
