LTE Module Series
EC25 Mini PCIe Hardware Design
EC25_Mini_PCIe_Hardware_Design Confidential / Released 6 / 42
Figure Index
FIGURE 1: FUNCTIONAL DIAGRAM ............................................................................................................... 13
FIGURE 2: PIN ASSIGNMENT ......................................................................................................................... 17
FIGURE 3: REFERENCE DESIGN OF POWER SUPPLY ............................................................................... 18
FIGURE 4: REFERENCE CIRCUIT OF USIM CARD INTERFACE WITH A 6-PIN USIM CARD CONNECTOR
........................................................................................................................................................................... 19
FIGURE 5: REFERENCE CIRCUIT OF USB INTERFACE .............................................................................. 20
FIGURE 6: TIMING IN PRIMARY MODE .......................................................................................................... 23
FIGURE 7: TIMING IN AUXILIARY MODE........................................................................................................ 23
FIGURE 8: REFERENCE CIRCUIT OF PCM APPLICATION WITH AUDIO CODEC ...................................... 24
FIGURE 9: RI BEHAVIOR ................................................................................................................................. 25
FIGURE 10: TIMING OF RESETTING MODULE ............................................................................................. 26
FIGURE 11: LED_WWAN# SIGNAL REFERENCE CIRCUIT DIAGRAM ......................................................... 26
FIGURE 12: WAKE# BEHAVIOR ...................................................................................................................... 27
FIGURE 13: DIMENSIONS OF THE RF CONNECTOR (UNIT: MM) ............................................................... 28
FIGURE 14: MECHANICALS OF U.FL-LP CONNECTORS ............................................................................. 28
FIGURE 15: MECHANICAL DIMENSIONS OF EC25 MINI PCIE (UNIT: MM) ................................................. 38
FIGURE 16: STANDARD DIMENSIONS OF MINI PCI EXPRESS (UNIT: MM) ............................................... 39
FIGURE 17: DIMENSIONS OF THE MINI PCI EXPRESS CONNECTOR (MOLEX 679100002, UNIT: MM).. 40
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