Quectel FC905A User Manual page 8

Wi-Fi&Bluetooth Module Series
Figure Index
Figure 2: Pin Assignment (Top View) ...................................................................................................... 17
Figure 4: Power-up Timing ...................................................................................................................... 21
Figure 6: WLAN Application Interface Connection .................................................................................. 22
Figure 7: SDIO Interface Connection ...................................................................................................... 23
Figure 8: Block Diagram of Bluetooth Application Interface Connection ................................................. 25
Figure 9: Reference Design for UART Interface Connection ................................................................... 26
Figure 10: PCM Interface Connection ..................................................................................................... 27
Figure 12: Microstrip Design on a 2-layer PCB ....................................................................................... 31
Figure 13: Coplanar Waveguide Design on a 2-layer PCB ..................................................................... 31
Figure 14: Coplanar Waveguide Design on a 4-layer PCB (Layer 3 as Reference Ground) ................... 32
Figure 15: Coplanar Waveguide Design on a 4-layer PCB (Layer 4 as Reference Ground) ................... 32
Figure 16: Dimensions of the U.FL-R-SMT Connector (Unit: mm) .......................................................... 34
Figure 17: Mechanicals of U.FL-LP Connectors ...................................................................................... 34
Figure 18: Space Factor of Mated Connector (Unit: mm) ........................................................................ 35
Figure 19: Top and Side Dimensions (Top and Side View) ..................................................................... 43
Figure 22: Top & Bottom View of FC905A .............................................................................................. 44
Figure 23: Recommended Reflow Soldering Thermal Profile .................................................................. 46
Figure 24: Carrier Tape Dimension Drawing ....................................................................................... 48
Figure 25: Plastic Reel Dimension Drawing ........................................................................................ 48
Figure 26: Packaging Process................................................................................................................. 49
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