Functional Diagram - SimCom SIM800C Hardware Design

2.4. Functional Diagram

The following figure shows a functional diagram of SIM800C:
 GSM baseband
 GSM RF
 Antenna interface
 Other interface
P ow er
S uppl y
R T C
A nal og I nt erf ace
Audio
A D C
SIM800C_Hardware_Design_V1.02
P ow er m anagem ent uni t
A nal og base
D i gi t al base
band
band
Figure 1: SIM800C functional diagram
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Smart Machine Smart Decision
G S M
Radio
Frequency
B T
D i gi t al I nt erf ace
U A R T
S I M
U S B
G P I O
2015-4-27