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SIM800H Datasheet(PDF) 51 Page - SIMCom

Part # SIM800H
Description  Hardware Design_V2.02
PDF  73 Pages
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Manufacturer  SIMCOM [SIMCom]
Direct Link  https://www.simcom.com
Logo SIMCOM - SIMCom

SIM800H Datasheet(HTML) 51 Page - SIMCom

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Figure 47: LED driver reference circuit
Table 39: ISINK specification
Pin name
Min
Typ
Max
Unit
ISINK0
-
24
mA
ISINK1
60
-
100
mA
Note: Isink0 provide 6-current-level steps of up to 24mA.
4.18. RF Synchronization Signal
The synchronization signal serves to indicate growing power consumption during the transmit burst. The signal
is generated by the RF_SYNC pin.
Table 40: Definition of the RF_SYNC pin
Pin name
Pin number
Description
RF_SYNC
5
Transmit synchronization signal
The timing of the synchronization signal is shown below. High level of the RF_SYNC pin indicates increased
power consumption during transmission.
Figure 48: RF_SYNC signal during transmit burst
SIM800H&SIM800L_Hardware Design_V2.02
51
2015-07-27



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