Quectel RM520N-GL Hardware Design page 11

5G Module Series
Figure Index
Figure 1: Functional Diagram ..................................................................................................................... 20
Figure 2: Pin Assignment ........................................................................................................................... 21
Figure 3: DRX Run Time and Current Consumption in Sleep Mode ......................................................... 28
Figure 4: Sleep Mode Application with USB Remote Wakeup .................................................................. 28
Figure 5: Power Supply Limits during Radio Transmission ....................................................................... 30
Figure 6: Reference Circuit for VCC .......................................................................................................... 31
Figure 7: Reference Circuit for Power Supply ........................................................................................... 31
Figure 8: Turn on the Module with a Host GPIO ........................................................................................ 33
Figure 9: Turn-on Timing of the Module ..................................................................................................... 33
Figure 10: Turn-off Timing through FULL_CARD_POWER_OFF# ........................................................... 35
Figure 11: Reference Circuit of RESET# with NPN Driver Circuit ............................................................. 36
Figure 12: Reference Circuit of RESET# with a Button ............................................................................. 36
Figure 13: Reset Timing of the Module's Warm Reset .............................................................................. 37
Figure 14: Reset Timing of the Module's Hard Reset ................................................................................ 38
Figure 15: Reference Circuit for Normally Closed (U)SIM Card Connector .............................................. 41
Figure 16: Reference Circuit for Normally Open (U)SIM Card Connector ................................................ 42
Figure 17: Reference Circuit for a 6-Pin (U)SIM Card Connector ............................................................. 43
Figure 18: Recommended Compatible Design for (U)SIM2 Interface ....................................................... 43
Figure 19: Reference Circuit of USB 3.1 & 2.0 Interface ........................................................................... 45
Figure 20: PCIe Interface Reference Circuit .............................................................................................. 48
Figure 21: W_DISABLE1# and W_DISABLE2# Reference Circuit ........................................................... 51
Figure 22: LED_WWAN# Reference Circuit .............................................................................................. 52
Figure 23: WAKE_ON_WAN# Signal Reference Circuit ........................................................................... 53
Figure 24: Recommended Circuit of Configuration Pins ........................................................................... 55
Figure 25: RF Connector Dimensions (Unit: mm) ...................................................................................... 62
Figure 26: RM520N-GL Antenna Connectors ............................................................................................ 63
Figure 27: Specifications of Mating Plugs Using Ø 0.81 mm Coaxial Cables ........................................... 64
Figure 28: Connection Between RF Connector and Mating Plug Using Ø 0.81 mm Coaxial Cable......... 64
Figure 29: Connection Between RF Connector and Mating Plug Using Ø 1.13 mm Coaxial Cable......... 65
Figure 30: Plug in a Coaxial Cable Plug .................................................................................................... 65
Figure 31: Pull out a Coaxial Cable Plug ................................................................................................... 66
Figure 32: Install the Coaxial Cable Plug with A Jig .................................................................................. 66
Figure 33: Thermal Dissipation Area Inside and on Bottom Side of the Module ...................................... 72
Figure 34: Placement and Fixing of the Heatsink ...................................................................................... 73
Figure 35: Mechanical Dimensions of the Module (Unit: mm) ................................................................... 75
Figure 36: RM520N-GL Top and Bottom Views ........................................................................................ 76
Figure 37: Blister Tray Dimension Drawing ............................................................................................... 77
Figure 38: Packaging Process ................................................................................................................... 78
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