User's Manual

Smart Machine Smart Decision
SIM7100A_User Manual_V1.01 2014-12-11
42
Figure 25: EXT CODEC to MODULE timing
Figure 26: MODULE to EXT CODEC timing
Table 21: Timing parameters
Parameter Description Min Typ Max Unit
T(sync) PCM_SYNC cycle time – 125 – μs
T(synch) PCM_SYNC high time 400 500 – ns
T(syncl) PCM_SYNC low time – 124.5 – μs
T(clk) PCM_CLK cycle time – 488 – ns
T(clkh) PCM_CLK high time – 244 – ns
T(clkl) PCM_CLK low time – 244 – ns
T(susync)
PCM_SYNC setup time high before falling edge of
PCM_CLK
60 – – ns
T(hsync)
PCM_SYNC hold time after falling edge of
PCM_CLK
60 – – ns