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Datenblatt-Suchmaschine für elektronische Bauteile |
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Datenblatt-Suchmaschine für elektronische Bauteile |
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WM8770 Datenblatt(PDF) 1 Page - Wolfson Microelectronics plc |
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WM8770 Datenblatt(HTML) 1 Page - Wolfson Microelectronics plc |
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1 / 52 page  w WM8770 24-bit, 192kHz 8-Channel Codec with Volume Control WOLFSON MICROELECTRONICS plc To receive regular email updates, sign up at http://www.wolfsonmicro.com/enews/ Production Data, June 2005, Rev 4.1 Copyright 2005 Wolfson Microelectronics plc DESCRIPTION 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 I 2S, left justified, right justified and DSP 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-lead TQFP package. FEATURES • Audio Performance − 106dB SNR (‘A’ weighted @ 48kHz) DAC − 102dB SNR (‘A’ weighted @ 48kHz) ADC • DAC Sampling Frequency: 8KHz – 192kHz • ADC Sampling Frequency: 8KHz – 96kHz • 3-Wire SPI or CCB MPU Serial Control Interface • Master or Slave Clocking Mode • Programmable Audio Data Interface Modes − I 2S, Left, Right Justified or DSP − 16/20/24/32 bit Word Lengths • Four Independent stereo DAC outputs with independent analogue and digital volume controls • Analogue Bypass Path Feature • Six channel selectable AUX input to the volume controls • Eight stereo ADC inputs with analogue gain adjust from +19dB to –12dB in 1dB steps • 2.7V to 5.5V Analogue, 2.7V to 3.6V Digital supply Operation • 5V tolerant digital inputs APPLICATIONS BLOCK DIAGRAM • Surround Sound AV Processors and Hi-Fi systems • Automotive Audio VOUT1L VOUT1R VOUT2L VOUT2R VOUT3L VOUT3R VOUT4L VOUT4R STEREO ADC AUDIO INTERFACE AND DIGITAL FILTERS STEREO DAC STEREO DAC STEREO DAC STEREO DAC AIN2R AIN3L AIN3R AIN4L AIN4R AIN5L AIN5R AIN6L AIN6R RECL RECR AINOPR AINOPL CONTROL INTERFACE AIN2L AIN1R AIN1L AIN7L AIN7R AIN8L AIN8R W WM8770 MUTE LOW PASS FILTERS LOW PASS FILTERS LOW PASS FILTERS LOW PASS FILTERS CCB is a trademark of SANYO ELECTRIC CO., LTD CCB is SANYO’s original bus format and all the bus addresses are controlled by SANYO. |
Ähnliche Teilenummer - WM8770 |
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Ähnliche Beschreibung - WM8770 |
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