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WM8738ED датащи(PDF) 8 Page - Wolfson Microelectronics plc |
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WM8738ED датащи(HTML) 8 Page - Wolfson Microelectronics plc |
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8 / 15 page ![]() WM8738 Production Data w PD Rev 4.3 November 2004 8 DIGITAL AUDIO INTERFACE TIMING M CLK t MCLKH t MCLKY t MCLKL Figure 1 Master Clock Timing Requirements Test Conditions AVDD = 5.0V, AGND = 0V, DVDD = 3.3V, DGND = 0V, TA = +25 oC, fs = 48kHz, MCLK = 256fs unless otherwise stated. PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT System Clock Timing Information MCLK System clock pulse width high TMCLKH 10 ns MCLK System clock pulse width low TMCLKL 10 ns MCLK System clock cycle time TMCLKY 27 ns BCLK LRCLK t BCH t BCL t BCY SDATO t LRS U t LRH t DD Figure 2 Digital Audio Data Timing Test Conditions AVDD = 5.0V, AGND = 0V, DVDD = 3.3V, DGND = 0V, TA = +25 oC, fs = 48kHz, MCLK = 256fs unless otherwise stated. PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Audio Data Input Timing Information BCLK cycle time tBCY 80 ns BCLK pulse width high tBCH 40 ns BCLK pulse width low tBCL 40 ns LRCLK set-up time to BCLK rising edge tLRSU 10 ns LRCLK hold time from BCLK rising edge tLRH 10 ns SDATO propagation delay from BCLK falling edge tDD 10 ns |
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