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WM8501 датащи(PDF) 8 Page - Wolfson Microelectronics plc |
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WM8501 датащи(HTML) 8 Page - Wolfson Microelectronics plc |
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8 / 20 page ![]() WM8501 Pre-Production w PP Rev 3.1 May 2006 8 MASTER CLOCK TIMING MCLK t MCLKL t MCLKH t MCLKY Figure 1 Master Clock Timing Requirements Test Conditions VDD = 5V, GND = 0V, TA = +25 oC, fs = 48kHz, MCLK = 256fs unless otherwise stated. PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT System Clock Timing Information MCLK Master clock pulse width high tMCLKH 8 ns MCLK Master clock pulse width low tMCLKL 8 ns MCLK Master clock cycle time tMCLKY 20 ns MCLK Duty cycle 40:60 60:40 Time from MCLK stopping to power down. 1.5 12 µs DIGITAL AUDIO INTERFACE Figure 2 Digital Audio Data Timing Test Conditions VDD = 5V, GND = 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 40 ns BCLK pulse width high tBCH 16 ns BCLK pulse width low tBCL 16 ns LRCLK set-up time to BCLK rising edge tLRSU 8 ns LRCLK hold time from BCLK rising edge tLRH 8 ns DIN set-up time to BCLK rising edge tDS 8 ns DIN hold time from BCLK rising edge tDH 8 ns |
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