Ldo; Rf Specification - SimCom SIM5215 Hardware Design

Note: The input signal voltage value in ADC must not be higher than 2.2V.

3.12.3 LDO

SIM5215&SIM5216 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
VREG_AUX Output voltage
I Output current
O

4 RF Specification

4.1 RF Specification
Table 34: Conducted transmission power
Frequency
GSM850
E-GSM900
DCS1800
PCS1900
GSM850 (8-PSK)
E-GSM900 (8-PSK)
DCS1800 (8-PSK)
PCS1900(8-PSK)
WCDMA 2100
WCDMA 1900
WCDMA 850
WCDMA 900
Table 35: Operating frequencies
Frequency
GSM850
E-GSM900
SIM5215&SIM5216_Hardware Design_V2.02
Min
1.5
-
Max
33dBm ±2dB
33dBm ±2dB
30dBm ±2dB
30dBm ±2dB
27dBm ±3dB
27dBm ±3dB
26dBm +3/-4dB
26dBm +3/-4dB
24dBm +1/-3dB
24dBm +1/-3dB
24dBm +1/-3dB
24dBm + 1/-3dB
Receiving
869 ～894 MHz
925 ～960 MHz
52
Smart Machine Smart Decision
Typ Max
2.85 3.05
- 250
Min
5dBm ± 5dB
5dBm ± 5dB
0dBm ± 5dB
0dBm ± 5dB
5dBm ± 5dB
5dBm ± 5dB
0dBm ±5dB
0dBm ±5dB
-56dBm ±5dB
-56dBm ±5dB
-56dBm ±5dB
-56dBm ±5dB
Transmission
824 ～849 MHz
880 ～915 MHz
Unit
V
mA
2012-08-31