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