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WM8739LEDS 数据表(PDF) 9 Page - Wolfson Microelectronics plc |
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WM8739LEDS 数据表(HTML) 9 Page - Wolfson Microelectronics plc |
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9 / 35 page ![]() WM8739 / WM8739L Advanced Information AI Rev 2.2 September 2001 9 MPU INTERFACE TIMING CSB SCLK SDIN t CSL t DHO t DSU t CSH t SCY t SCH t SCL t SCS LSB t CSS Figure 6 Program Register Input Timing – 3-Wire MPU Serial Control Mode Test Conditions AVDD, DBVDD = 3.3V, AGND = 0V, DCVDD = 3.3V, DGND = 0V, TA = +25 oC, Slave Mode, fs = 48kHz, XTI/MCLK = 256fs unless otherwise stated. PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Program Register Input Information SCLK rising edge to CSB rising edge tSCS 500 ns SCLK pulse cycle time tSCY 80 ns SCLK pulse width low tSCL 20 ns SCLK pulse width high tSCH 20 ns SDIN to SCLK set-up time tDSU 20 ns SCLK to SDIN hold time tDHO 20 ns CSB pulse width low tCSL 20 ns CSB pulse width high tCSH 20 ns CSB rising to SCLK rising tCSS 20 ns SDIN SCLK t 3 t 1 t 6 t 2 t 7 t 5 t 4 t 3 t 8 t 9 Figure 7 Program Register Input Timing – 2-Wire MPU Serial Control Mode |
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