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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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WM8955LEFL датащи(PDF) 11 Page - Wolfson Microelectronics plc |
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WM8955LEFL датащи(HTML) 11 Page - Wolfson Microelectronics plc |
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11 / 43 page  Product Preview WM8955L w Product Preview Rev 0.4 May2003 11 SIGNAL TIMING REQUIREMENTS SYSTEM CLOCK TIMING MCLK t MCLKL t MCLKH t MCLKY Figure 1 System Clock Timing Requirements Test Conditions DBVDD = 3.3V, DGND = 0V, TA =+25 oC, Slave Mode fs = 48kHz, MCLK = 256fs, 24-bit data, unless otherwise stated. PARAMETER SYMBOL MIN TYP MAX UNIT System Clock Timing Information MCLK System clock pulse width high tMCLKL 16 ns MCLK System clock pulse width low tMCLKH 16 ns MCLK System clock cycle time tMCLKY 27 ns AUDIO INTERFACE TIMING – MASTER MODE BCLK (Output) DACLRC (Output) DACDAT t DST t DHT t DL Figure 2 Digital Audio Data Timing – Master Mode (see Control Interface) Test Conditions DBVDD = 3.3V, DGND = 0V, TA =+25 oC, Slave Mode fs = 48kHz, MCLK = 256fs, 24-bit data, unless otherwise stated. PARAMETER SYMBOL MIN TYP MAX UNIT System Clock Timing Information DACLRC propagation delayfrom BCLK falling edge tDL 10 ns DACDAT setup time to BCLK rising edge tDST 10 ns DACDAT hold time from BCLK rising edge tDHT 10 ns AUDIO INTERFACE TIMING – SLAVE MODE BCLK DACLRC t BCH t BCL t BCY DACDAT t LRSU t DS t LRH Figure 3 Digital Audio Data Timing – Slave Mode (see Control Interface) |
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