Описание
The WM8569 is a stereo audio codec ideal for DVD, PVR, LCD-TV and automotive applications. Independent ADC and DAC clocking permits separate record and playback sampling rates.A stereo 24-bit multi-bit Delta Sigma DAC with oversampling and digital interpolation filters provides the output signal. Digital audio input word lengths from 16-24 bits and sampling rates from 8kHz to 192kHz are supported.A stereo 24-bit multi-bit Delta Sigma ADC is used. Digital audio output word lengths from 16-24 bits and sampling rates from 32kHz to 96kHz are supported. The DAC and ADC support independent sampling rates. The audio data interface supports I²S, left justified, right justified and DSP digital audio formats.The device is controlled via a three-wire serial interface. The interface provides access to all features including volume controls, mutes, de-emphasis and power management facilities. A hardware control interface allows access to a limited feature set. The WM8569 is available in a 28-lead SSOP.
- Audio Performance
- 103dB SNR (’A’ weighted @ 48kHz) DAC
- DAC Sampling Frequency: 8kHz – 192kHz
- 100dB SNR (’A’ weighted @ 48kHz) ADC
- ADC Sampling Frequency: 32kHz – 96kHz
- Independent Sampling Rates for ADC and DAC
- three-wire SPI Serial or Hardware Control Interface
- Audio Mute and De-Emphasis Functions
- Programmable Audio Data Interface Modes
- 16/20/24/32 bit Word Lengths
- I²S, Left, Right Justified or DSP
- 2.7V to 5.5V Analog Supply
- 2.7V to 3.6V Digital Supply
- 28-lead SSOP Package
