Product Info

Wi-Fi&BT Module Series
AF50T Hardware Design
AF50T_Hardware_Design 4 / 52
Contents
About the Document .................................................................................................................................. 3
Contents ...................................................................................................................................................... 4
Table Index .................................................................................................................................................. 6
Figure Index ................................................................................................................................................ 7
1 Introduction ......................................................................................................................................... 8
1.1. Safety Information ...................................................................................................................... 9
2 Product Concept ............................................................................................................................... 10
2.1. General Description ................................................................................................................. 10
2.2. Key Features ............................................................................................................................ 10
2.3. Functional Diagram .................................................................................................................. 12
2.4. Evaluation Board ...................................................................................................................... 12
3 Application Interfaces ...................................................................................................................... 13
3.1. General Description ................................................................................................................. 13
3.2. Pin Assignment ........................................................................................................................ 14
3.3. Pin Description ......................................................................................................................... 15
3.4. Power Supply ........................................................................................................................... 19
3.5. WLAN Interface ........................................................................................................................ 20
3.5.1. WLAN_EN ..................................................................................................................... 21
3.5.2. PCIe Interface ............................................................................................................... 21
3.6. BT Interface .............................................................................................................................. 22
3.6.1. BT_EN ........................................................................................................................... 23
3.6.2. PCM Interface* .............................................................................................................. 23
3.6.3. UART Interface .............................................................................................................. 24
3.7. Control Signal Pins* ................................................................................................................. 25
3.7.1. SW_CTRL ..................................................................................................................... 25
3.7.2. HOST_WAKEUP_BT and BT_WAKEUP_HOST .......................................................... 25
3.8. Coexistence Interfaces ............................................................................................................ 26
3.8.1. UART Coexistence Interface ......................................................................................... 26
3.8.2. Other Coexistence Interfaces* ...................................................................................... 27
3.9. WLAN_SLP_CLK Interface ...................................................................................................... 27
3.10. RF Antenna Interfaces .......................................................................................................... 28
3.10.1. Operating Frequency .................................................................................................... 28
3.10.2. Reference Design of RF Antenna Interfaces ................................................................ 28
3.10.3. Reference Design of RF Layout ................................................................................... 29
3.10.4. Antenna Requirements ................................................................................................. 31
3.10.5. Recommended RF Connector for Antenna Installation ................................................ 32
4 Reliability, Radio and Electrical Characteristics ........................................................................... 34
4.1. General Description ................................................................................................................. 34