Product Info

LTE Standard Module Series
EC21 Mini PCIe Hardware Design
EC21_Mini_PCIe_Hardware_Design 8 / 64
Figure Index
FIGURE 1: FUNCTIONAL DIAGRAM ............................................................................................................... 19
FIGURE 2: PIN ASSIGNMENT ......................................................................................................................... 20
FIGURE 3: REFERENCE CIRCUIT OF POWER SUPPLY .............................................................................. 25
FIGURE 4: REFERENCE CIRCUIT OF (U)SIM INTERFACE WITH AN 8-PIN (U)SIM CARD CONNECTOR 26
FIGURE 5: REFERENCE CIRCUIT OF (U)SIM INTERFACE WITH A 6-PIN (U)SIM CARD CONNECTOR ... 26
FIGURE 6: REFERENCE CIRCUIT OF USB INTERFACE .............................................................................. 28
FIGURE 7: TIMING IN PRIMARY MODE .......................................................................................................... 31
FIGURE 8: TIMING IN AUXILIARY MODE ....................................................................................................... 31
FIGURE 9: REFERENCE CIRCUIT OF PCM APPLICATION WITH AUDIO CODEC ...................................... 32
FIGURE 10: RI BEHAVIOR ............................................................................................................................... 33
FIGURE 11: TIMING OF RESETTING MODULE .............................................................................................. 34
FIGURE 12: LED_WWAN# SIGNAL REFERENCE CIRCUIT DIAGRAM ........................................................ 34
FIGURE 13: WAKE# BEHAVIOR ...................................................................................................................... 35
FIGURE 14: DIMENSIONS OF ANTENNA CONNECTORS (UNIT: MM) ......................................................... 41
FIGURE 15: MECHANICALS OF U.FL-LP MATING PLUGS ........................................................................... 41
FIGURE 16: SPACE FACTOR OF MATING PLUGS (UNIT: MM) ..................................................................... 42
FIGURE 17: REFERENCED HEATSINK DESIGN ........................................................................................... 61
FIGURE 18: MECHANICAL DIMENSIONS OF EC21 MINI PCIE .................................................................... 62
FIGURE 19: STANDARD DIMENSIONS OF MINI PCI EXPRESS ................................................................... 63
FIGURE 20: DIMENSIONS OF THE MINI PCI EXPRESS CONNECTOR (MOLEX 679100002) .................... 64