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WM8772SEDS/V 데이터시트(PDF) 56 Page - Wolfson Microelectronics plc |
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WM8772SEDS/V 데이터시트(HTML) 56 Page - Wolfson Microelectronics plc |
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56 / 73 page ![]() WM8772EFT – 32 LEAD TQFP Production Data w PD Rev 4.2 October 2005 56 DACLRC DACBCLK DIN1 Input Word Length (IWL) 1/fs CHANNEL 1 LEFT n 2 1 n-1 LSB MSB n 2 1 n-1 CHANNEL 1 RIGHT 2 1 CHANNEL 2 LEFT n n-1 CHANNEL 3 RIGHT NO VALID DATA 1 Figure 55 DSP Mode Audio Interface - Mode B Master, DAC The MSB of the left channel ADC data is output on DOUT and changes on the same falling edge of ADCBCLK as the low to high ADCLRC transition and may be sampled on the rising edge of ADCBCLK. The right channel ADC data is contiguous with the left channel data (Figure 56). Figure 56 DSP Mode Audio Interface - Mode A Slave, ADC ADCLRC BCK DOUT Input Word Length (IWL) 1/fs LEFT CHANNEL n 2 1 n-1 LSB MSB n 2 1 n-1 RIGHT CHANNEL NO VALID DATA 1 Figure 57 DSP Mode Audio Interface - Mode B Master, ADC In both DSP mode A and mode B , DACL1 is always sent first, followed immediately by DACR1 and the data words for the other 6 channels. No BCLK edges are allowed between the data words. The word order is DAC1 left, DAC1 right, DAC2 left, DAC2 right, DAC3 left, DAC3 right. |
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