SimCom SIM5320AL, Руководство пользователя

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SIM5320AL_User Manual_V1.01 2014-08-20 50
User can introduce a signal in the ADC pin directly and use the AT command “AT+CADC” to get the raw
data which is between 0 and 4095. The data can be transformed to any type such as voltage, temperature
etc. Please refer to
document [1] .
Figure 38: Reference circuit
Note: The input signal voltage value in ADC must not be higher than 2.2V.
3.12.4 LDO
SIM5320AL has a LDO power output, namely VREG_AUX. The LDO is available and output voltage is
2.85v by default, rated for 250mA. User can switch the LDO on or off by the AT command
“AT+CVAUXS” and configure its output voltage by the AT command “AT+CVAUXV”.
Table 33: Electronic characteristic
Symbol Description Min Typ Max Unit
VREG_AUX Output voltage 1.5 2.85 3.05 V
I
O
Output current - - 250 mA
4 RF Specification
4.1 RF Specification
Table 34: Conducted transmission power
Frequency Max Min
WCDMA 1900 24dBm +1/-3dB -56dBm ±5dB
WCDMA 850 24dBm +1/-3dB -56dBm ±5dB
Table 35: Operating frequencies