SimCom SIM5320AL, User Manual

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Smart Machine Smart Decision
SIM5320AL_User Manual_V1.01 2014-08-20 35
summation of
sidetone
16384)
rxVol
Digital Volume of
output signal after
speech
decoder,
before summation of
sidetone and DAC
-300…300 dbm
-300…300d
bm
AT+CLVL
AT+CVLVL
AT+CRXVOL
stGain
Digital attenuation
of sidetone
0, 1...65535
Mute,
-96...0dB
20 * log
(stGain/
16384) -12 AT+SIDET
rxFilter
Output PCM 13-tap
filter parameters, 7
values
0...65535 ---
MATLAB
calculate
AT+CRXFTR
Note: If users require better experience on audio, users should modify these parameters according to their own electronic
and mechanical design.
3.5 USIM Interface
The USIM provides the required subscription verification information to allow the mobile equipment to
attach to a UMTS network. Both 1.8V and 3.0V SIM Cards are supported.
3.5.1 Pin description
Table 14: Electronic characteristic
Table 15: Pin description
Pin name
3.0V mode 1.8V mode
Min Typ Max Min Typ Max
V_USIM 2.7 3.00 3.3 1.65 1.8 2.0
USIM_RESET 0.8* V_USIM 3.00 V_USIM 0.8* V_USIM 1.8 V_USIM
USIM_CLK 0.7* V_USIM 3.00 V_USIM 0.8* V_USIM 1.8 V_USIM
USIM_DATA 0.7* V_USIM 3.00 V_USIM 0.8* V_USIM 1.8 V_USIM
Pin name Pin Description
USIM_CLK 19 USIM Card Clock
USIM_RESET 18 USIM Card Reset
USIM_DATA 17
USIM Card data I/O, which has been pulled up with a 22kR resistor to
V_USIM in module. Do not pull up or pull down in users’ application
circuit.