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CS8422 数据表(PDF) 18 Page - Cirrus Logic |
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CS8422 数据表(HTML) 18 Page - Cirrus Logic |
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18 / 82 page ![]() 18 DS692PP2 CS8422 Notes: 7. After powering up the CS8422, RST should be held low until the power supplies and clocks are settled. 8. If ISCLK is selected as the clock source for the PLL, then the Sample Rate = ISCLK/64. SDIN/TDM_IN Setup Time Before I/OSCLK Rising Edge tds 2.2 - - ns SDIN/TDM_IN Hold Time After I/OSCLK Rising Edge tdh 5.5 - - ns TDM Mode OSCLK Frequency (Note 11) - - 49.152 MHz TDM Mode OSCLK Falling Edge to OLRCK Edge tfsm -- 4.2 ns VL = 1.8 V, 2.5 V RMCK Output Frequency -- 31 MHz MCLK_OUT Frequency -- 31 MHz Slave Mode ISCLK Frequency - - 49.152 MHz ISCLK High Time tsckh 9.2 - - ns ISCLK Low Time tsckl 9.2 - - ns OSCLK Frequency -- 15.7 MHz OSCLK High Time tsckh 28.7 - - ns OSCLK Low Time tsckl 28.7 - - ns I/OLRCK Edge to I/OSCLK Rising Edge tlcks 7.4 - - ns I/OSCLK Rising Edge to I/OLRCK Edge tlckd 6.2 - - ns OSCLK Falling Edge/OLRCK Edge to SDOUT Output Valid tdpd -- 25.6 ns SDIN/TDM_IN Setup Time Before I/OSCLK Rising Edge tds 4.7 - - ns SDIN/TDM_IN Hold Time After I/OSCLK Rising Edge tdh 7.3 - - ns TDM Mode OLRCK High Time (Note 10) tlrckh 20 - - ns TDM Mode OLRCK Rising Edge to OSCLK Rising Edge tfss 7.0 - - ns TDM Mode OSCLK Rising Edge to OLRCK Falling Edge tfsh 6.2 - - ns Master Mode I/OSCLK Frequency (non-TDM Mode) 48*Fsi/o - 128*Fsi/o MHz I/OLRCK Duty Cycle 45 - 55 % I/OSCLK Duty Cycle 45 - 55 % I/OSCLK Falling Edge to I/OLRCK Edge tlcks -- 5.7 ns OSCLK Falling Edge to SDOUT Output Valid tdpd -- 5.4 ns SDIN/TDM_IN Setup Time Before I/OSCLK Rising Edge tds 4.7 - - ns SDIN/TDM_IN Hold Time After I/OSCLK Rising Edge tdh 7.3 - - ns TDM Mode OSCLK Frequency (Note 11) -- 31 MHz TDM Mode OSCLK Falling Edge to OLRCK Edge tfsm -- 5.7 ns Parameter Symbol Min Typ Max Units |
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