Wi-Fi&BT Module Series
AF50T Hardware Design
AF50T_Hardware_Design 7 / 52
Figure Index
Figure 1: Functional Diagram of AF50T Module ........................................................................................ 12
Figure 2: Pin Assignment (Top View) ......................................................................................................... 14
Figure 3: Reference Circuit for VDD_CORE_VL, VDD_CORE_VM, VDD_CORE_VH, and VDD_IO ..... 19
Figure 4: Reference Circuit for VDD_RF ................................................................................................... 20
Figure 5: WLAN Interface Connection ....................................................................................................... 20
Figure 6: PCIe Interface Connection .......................................................................................................... 22
Figure 7: Block Diagram of BT Interface Connection ................................................................................ 23
Figure 8: PCM Interface Connection .......................................................................................................... 24
Figure 9: UART Interface Connection ........................................................................................................ 25
Figure 10: SW_CTRL Connection .............................................................................................................. 25
Figure 11: UART Coexistence Interface Connection ................................................................................. 26
Figure 12: Reference Circuit for RF Antenna Interfaces ............................................................................ 29
Figure 13: Microstrip Design on a 2-layer PCB ......................................................................................... 29
Figure 14: Coplanar Waveguide Design on a 2-layer PCB ....................................................................... 29
Figure 15: Coplanar Waveguide Design on a 4-layer PCB (Layer 3 as Reference Ground) .................... 30
Figure 16: Coplanar Waveguide Design on a 4-layer PCB (Layer 4 as Reference Ground) .................... 30
Figure 17: Dimensions of the U.FL-R-SMT Connector (Unit: mm) ............................................................ 32
Figure 18: Mechanicals of UF.L-LP Connectors (Unit: mm) ...................................................................... 32
Figure 19: Space Factor of Mated Connector (Unit: mm) .......................................................................... 33
Figure 20: AF50T Top and Side Dimensions ............................................................................................. 43
Figure 21: AF50T Bottom Dimension (Bottom View) ................................................................................. 44
Figure 22: Recommended Footprint (Bottom View) .................................................................................. 45
Figure 23: Top View of the Module ............................................................................................................. 46
Figure 24: Bottom View of the Module ....................................................................................................... 46
Figure 25: Recommended Reflow Soldering Thermal Profile ................................................................... 48