SimCom SIM808, Hardware Design

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SIM808_Hardware Design_V1.00 2014.03.27 56
- - 0.36 V
V
OL
Low-level output voltage
- - 0.4 V
6.5 SIM_VDD Characteristics
Table 42: SIM_VDD characteristics
Symbol Parameter Min Typ Max Unit
- 3 -
V
O
Output voltage
- 1.80 -
V
I
O
Output voltage - - 10 mA
6.6 VDD_EXT Characteristics
Table 43: VDD_EXT characteristics
Symbol Parameter Min Typ Max Unit
V
O
Output voltage 2.70 2.80 2.95 V
I
O
Output current - - 50 mA
6.7 VRTC Characteristics
Table 44: VRTC characteristics
Symbol Parameter Min Typ Max Unit
V
RTC-IN
VRTC input voltage - 2.8 - V
I
RTC-IN
VRTC input current - 3 - uA
V
RTC-OUT
VRTC output voltage - 2.8 - V
I
RTC-OUT
VRTC output current - 2 uA
6.8 Current Consumption (VBAT = 4V, GPS engine is powered down)
Table 45: GSM current consumption
*
Symbol Parameter Conditions Min Typ Max Unit
Voltage 3.4 4.0 4.4 V
Power drop PCL=5 350 mV
VBAT
Voltage ripple PCL=5
@ f<200kHz
@ f>200kHz
50
2
mV
mV