Wi-Fi&BT Module Series
AF50T Hardware Design
AF50T_Hardware_Design 27 / 52
3.8.2. Other Coexistence Interfaces*
The following table shows the pin definition of other coexistence interfaces.
Table 13: Pin Definition of Other Coexistence Interface
Pin Name
Pin No.
I/O
Description
Comment
LAA_AS_EN
82
DI
Allow LAA to control WLAN FEM during
WLAN sleep mode
If unused, keep this pin
open.
LAA_TXEN
41
DI
WLAN XFEM control LAA TX enable
If unused, keep this pin
open.
LAA_RX
81
DI
WLAN XFEM control for LAA receiver
If unused, keep this pin
open.
WLAN_TXEN
42
DO WLAN XFEM control for WLAN TX enable
If unused, keep this pin
open.
PA_MUTE
80
DI
WLAN XFEM control to disable WLAN PA
If unused, keep this pin
open.
“*” means under development.
3.9. WLAN_SLP_CLK Interface
An external 32.768 kHz sleep clock connecting to WLAN_SLP_CLK is necessary. AF50T is unable to
boot up and work without sleep clock.
Table 14: Pin Definition of WLAN_SLP_CLK Interface
Pin Name
Pin No.
I/O
Description
Comment
WLAN_SLP_CLK 15
DI
External 32.768 kHz sleep clock input
1.8 V power domain.
NOTE