SIM802 Hardware Design
Table 15: MIC Input Characteristics
Parameter
Min
Typ
Max
Unit
Working Voltage 1.2
1.5
2.0
V
Working Current 300
500
uA
External
Microphone
Load Resistance
1.2
2.2
k Ohms
Table 16: Audio Output Characteristics
Parameter
Min
Typ
Max
Unit
load
Resistance
27
32
Ohm
Single
Ended
Ref level
0.5477
-12.04
Vpp
dBm
load
Resistance
27
32
Ohm
Normal
Output(SPK1)
Differential
Ref level
1.0954
-6.02
Vpp
dBm
load
Resistance
27
32
Ohm
Single
Ended
Ref level
0.5477
-12.04
Vpp
dBm
load
Resistance
27
32
Ohm
Auxiliary
Output(SPK2)
Differential
Ref level
1.0954
-6.02
Vpp
dBm
3.11 SIM interface
3.11.1 SIM card application
You can use AT Command to get information in SIM card. For more information, please refer to
document [1]
.
The SIM interface supports the functionality of the GSM Phase 1 specification and also supports
the functionality of the new GSM Phase 2+ specification for FAST 64 kbps SIM (intended for use
with a SIM application Tool-kit).
Both 1.8V and 3.0V SIM Cards are supported.
SIM802_HD_V2.01
12.01.2010
50
