SimCom SIM5320AL User Manual

Smart Machine Smart Decision
SIM5320AL_User Manual_V1.01 2014-08-20
46
Figure 32: MODULE to EXT CODEC timing
Table 29: Timing parameters
Parameter Description Min Typ Max Unit
T(auxsync) AUX_PCM_SYNC cycle time – 125 - μs
T(auxsynch) AUX_PCM_SYNC high time 62.4 62.5 - μs
T(auxsyncl) AUX_PCM_SYNC low time 62.4 62.5 - μs
T(auxclk)* AUX_PCM_CLK cycle time - 7.8 – μs
T(auxclkh) AUX_PCM_CLK high time 3.8 3.9 – μs
T(auxclkl) AUX_PCM_CLK low time 3.8 3.9 – μs
T(suauxsync)
AUX_PCM_SYNC setup time high before
falling edge of PCM_CLK
1.95 – – μs
T(hauxsync)
AUX_PCM SYNC hold time after falling edge
of PCM_CLK
1.95 – – μs
T(suauxdin)
AUX_PCM_DIN setup time before falling
edge of AUX_PCM_CLK
70 – – ns
T(hauxdin)
AUX_PCM_DIN hold time after falling edge
of AUX_PCM_CLK
20 – – ns
T(pauxdout)
Delay from AUX_PCM_CLK rising to
AUX_PCM_DOUT valid
– – 50 ns
*Note: T(auxclk) = 1/(128 KHz).
Primary PCM (2048 KHz PCM clock)
SIM5320 also supports 2.048 MHz PCM data and sync timing for -law codec. This is called the primary
PCM interface. User can use AT command to take the mode you want as discussed above.

SimCom SIM5320AL Specifications

General

Brand	SimCom
Model	SIM5320AL
Category	Control Unit
Language	English