UMTS/HSPA Module Series
UC20 EVB User Guide
UC20_EVB_User_Guide Confidential / Released 19 / 30
Table 6: Pin Assignment of J401
3.4. SIM Card Interface
The UC20 EVB has two integrated SIM card interfaces. A suitable SIM card (3V or 1.8V) is required to
start the UMTS module. The 8pin SIM card holder J502 placed on the UC20 EVB is from type Molex, and
the 6pin SIM card holder J503 is not used. Figure 14 shows the simplified interface schematic for J502.
SIM card holder
SIM_VDD
SIM_CLK
SIM_DATA
SIM_RST
SIM_GND
SIM_PRESENCE
J801
J101
UC20 Mini PCIe
UC20-TE-A
8 10 12 14
GND
12 10 8 6 4
14
J502
Figure 14: Simplified SIM Card Interface Schematic
J401 Pin
Pin Name
Function
1
MICN
Negative microphone input.
2
SPKN
Negative speaker output.
3
SPKP
Positive speaker output.
4
MICP
Positive microphone input.
Quectel
Condidential
Produkt dostpny w sklepie www.Soyter.pl <--- kliknij
