LTE Module Series
EC20 Mini PCIe Hardware Design
EC20_Mini_PCIe_Hardware_Design Confidential / Released 3 / 36
Contents
About the Document...................................................................................................................................2
Contents.......................................................................................................................................................3
Table Index...................................................................................................................................................5
Figure Index.................................................................................................................................................6
1Introduction..........................................................................................................................................7
1.1. Safety Information......................................................................................................................8
2Product Concept..................................................................................................................................9
2.1. General Description...................................................................................................................9
2.2. Description of Product Series....................................................................................................9
2.3. Key Features ...........................................................................................................................10
2.4. Functional Diagram .................................................................................................................12
3Application Interface .........................................................................................................................13
3.1. General Description.................................................................................................................13
3.2. EC20 Mini PCIe Interface........................................................................................................13
3.2.1. Definition of Interface.....................................................................................................13
3.2.2. Pin Assignment ..............................................................................................................16
3.3. Power Supply...........................................................................................................................17
3.4. USIM Card Interface................................................................................................................18
3.5. USB Interface ..........................................................................................................................19
3.6. UART Interface........................................................................................................................20
3.7. PCM and I2C Interface............................................................................................................22
3.8. Control Signals ........................................................................................................................24
3.8.1. RI Signal.........................................................................................................................25
3.8.2. DTR Signal.....................................................................................................................25
3.8.3. W_DISABLE# Signal......................................................................................................25
3.8.4. PERST# Signal..............................................................................................................26
3.8.5. LED_WWAN# Signal .....................................................................................................26
3.9. Antenna Interface....................................................................................................................27
4Electrical and Radio Characteristics ...............................................................................................28
4.1. General Description.................................................................................................................28
4.2. Power Supply Requirements...................................................................................................28
4.3. IO Requirements......................................................................................................................29
4.4. RF Characteristics...................................................................................................................29
4.5. GNSS Receiver .......................................................................................................................30
4.6. ESD Characteristics ................................................................................................................31
5Mechanical Dimensions....................................................................................................................32
5.1. General Description.................................................................................................................32
5.2. Mechanical Dimensions of EC20 Mini PCIe............................................................................32
5.3. Standard Dimensions of Mini PCI Express .............................................................................33
