Audio Electronic Characteristics; Usim Card Interface; Usim Card Application - SimCom SIM5300E Hardware Design

MODULE

4.7.4 Audio Electronic Characteristics

Table 9: Microphone Input Characteristics
Parameter
Mic biasing Voltage
Working Current
External Microphone Load Resistance
Total Harmonic Distortion
Equivalent
Gain set to 35.25dB
output noise
Table 10: Audio Output Characteristics
Parameter Conditions
Normal Output
RL=32Ω Receiver

4.8 USIM CARD INTERFACE

4.8.1 USIM Card Application

SIM5300E_Hardware_Design_V1.02
The lines in bold type should
be accorded to differential
signal layout rules
MIC_N
MIC_P
Close to module
10R
SPK_P
33pF 33pF
Figure 27: Earphone reference circuit
Min
2.5
Min
Close to socket
ESD
33pF 33pF
ANTI
68R
3
ESD
33pF 10pF
4
ANTI
2
1
9001-8905-050
Typ Max
2.54 2.8
3
2.2
-79 -65
110
Typ Max
90
Amphenol
Unit
V
mA
kΩ
dB
uV
Unit
mW
29