Product Info

LTE Standard Module Series
EC25 Mini PCIe Hardware Design
EC25_Mini_PCIe_Hardware_Design
6
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Contents
About the Document..................................................................................................................................................2
Contents........................................................................................................................................................................6
Table Index................................................................................................................................................................... 8
Figure Index............................................................................................................................................................... 10
1 Introduction....................................................................................................................................................... 11
1.1. Safety Information.................................................................................................................................14
2 Product Concept...............................................................................................................................................15
2.1. General Description..............................................................................................................................15
2.2. Description of Module Series..............................................................................................................16
2.3. Key Features......................................................................................................................................... 18
2.4. Functional Diagram.............................................................................................................................. 20
3 Application Interfaces.....................................................................................................................................21
3.1. Pin Assignment..................................................................................................................................... 21
3.2. Pin Description...................................................................................................................................... 22
3.3. Operating Modes.................................................................................................................................. 25
3.4. Power Saving........................................................................................................................................ 25
3.4.1. Sleep Mode................................................................................................................................. 25
3.4.2. Airplane Mode.............................................................................................................................26
3.5. Power Supply........................................................................................................................................ 26
3.6. (U)SIM Interface....................................................................................................................................27
3.7. USB Interface........................................................................................................................................ 29
3.8. UART Interfaces....................................................................................................................................30
3.8.1. Main UART Interface................................................................................................................. 30
3.8.2. COEX UART Interface*.............................................................................................................31
3.9. PCM and I2C Interfaces...................................................................................................................... 32
3.10. Control and Indication Signals............................................................................................................35
3.10.1. RI Signal...................................................................................................................................... 35
3.10.2. DTR Signal.................................................................................................................................. 36
3.10.3. W_DISABLE# Signal................................................................................................................. 36
3.10.4. PERST# Signal...........................................................................................................................36
3.10.5. LED_WWAN# Signal................................................................................................................. 37
3.10.6. WAKE# Signal............................................................................................................................ 38
4 GNSS Receiver..................................................................................................................................................39
4.1. General Description..............................................................................................................................39
4.2. GNSS Performance..............................................................................................................................39
4.3. GNSS Frequency..................................................................................................................................40
5 Antenna Connection........................................................................................................................................41
5.1. Antenna Connectors............................................................................................................................ 41
5.1.1. Operating Frequency.................................................................................................................41