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LTE Standard Module Series
EM05-G Hardware Design
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4 Application Interfaces
The physical connections and signal levels of EM05-G comply with PCI Express M.2 specifications. This
chapter mainly describes the definition and application of the following interfaces of EM05-G:
⚫ (U)SIM interface
⚫ USB interface
⚫ PCM interface*
⚫ Control and indication interfaces
⚫ Cellular/WLAN COEX interface*
⚫ Antenna tuner control interface*
⚫ Configuration pins
4.1. (U)SIM Interface
The (U)SIM interfaces circuitry meets ETSI and IMT-2000 requirements. Both Class B (3.0 V) and Class
C (1.8 V) (U)SIM cards are supported.
4.1.1. Pin Definition of (U)SIM
Table 10: Pin Definition of (U)SIM Interfaces
Pin No.
Pin Name
I/O
Description
DC Characteristics
36
USIM1_VDD
PO
Power supply for (U)SIM1 card
1.8/3.0 V
34
USIM1_DATA
DIO, PU
(U)SIM1 card data
USIM1_VDD
1.8/3.0 V
32
USIM1_CLK
DO, PD
(U)SIM1 card clock
USIM1_VDD
1.8/3.0 V
30
USIM1_RST
DO, PD
(U)SIM1 card reset
USIM1_VDD
1.8/3.0 V
66
USIM1_DET
1)
DI, PU
(U)SIM1 card hot-plug detect.
1.8 V
48
USIM2_VDD
PO
Power supply for (U)SIM2 card
USIM2_VDD
1.8/3.0 V