WM8770: CODEC
설명
The WM8770 is a high performance, multi-channel audio codec. The WM8770 is ideal for surround sound processing applications for home hi-fi, automotive and other audio visual equipment.
A stereo 24-bit multi-bit sigma delta ADC is used with an eight stereo channel input selector. Each channel has analogue domain mute and programmable gain control. Digital audio output word lengths from 16-32 bits and sampling rates from 8kHz to 96kHz are supported.
Four stereo 24-bit multi-bit sigma delta DACs are used with oversampling digital interpolation filters. Digital audio input word lengths from 16-32 bits and sampling rates from 8kHz to 192kHz are supported. Each DAC channel has independent analogue volume and mute control, with a set of input multiplexors allowing selection of an external 3 channel stereo analogue input into these volume controls.
The audio data interface supports I²S, left justified and right justified digital audio formats.
The device is controlled via a 3 wire serial interface. The interface provides access to all features including channel selection, volume controls, mutes, de-emphasis and power management facilities. The device is available in a 64-pin TQFP package.
특징
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106dB SNR (’A’ weighted @ 48kHz) DAC
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102dB SNR (’A’ weighted @ 48kHz) ADC
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DAC Sampling Frequency: 8kHz - 192kHz
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ADC Sampling Frequency: 8kHz - 96kHz
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3-Wire SPI or CCB MPU Serial Control Interface
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Master or Slave Clocking Mode
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Programmable Audio Data Interface Modes
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16/20/24/32 bit Word Lengths
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Four stereo DAC outputs with independent analogue and digital volume controls
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Analogue Bypass Path Feature
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Six channel selectable AUX input to the volume controls
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Eight stereo ADC inputs with analogue gain adjust
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2.7V to 5.5V Analogue, 2.7V to 3.6V Digital supply Operation
Support
Ordering & Samples
