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4
Wi-Fi and BT
SC20 module provides a shared antenna interface ANT_WIFI/BT for Wi-Fi and Bluetooth (BT) functions.
The interface impedance is 50Ω. External antennas such as PCB antenna, sucker antenna and ceramic
antenna can be connected to the module via the interface, so as to achieve Wi-Fi and BT functions.
4.1. Wi-Fi Overview
SC20 module supports 2.4G and 5G double-band WLAN wireless communication based on IEEE 802.11
a/802.11b/ 802.11g/ 802.11n standard protocols. The maximum data rate is up to 150 Mbps.
The features are as below:
Support Wake-on-WLAN (WoWLAN)
Support ad hoc mode
Support WAPI SMS4 hardware encryption
Support AP mode
Support Wi-Fi Direct
Support MCS 0-7 for HT20 and HT40
NOTE
SC20-CE only supports 2.4G single band WIFI, and does not support 802.11a.
4.1.1. Wi-Fi Performance
The following table lists the Wi-Fi transmitting and receiving performance of SC20 module (SC20-CE
does not support 5G frequency band).
Referenced specifications are listed below:
No.
Document
IEEE 802.11n WLAN MAC and PHY, October 2009 + IEEE 802.11-2007 WLAN MAC and
1
PHY, June 2007
SC20-A_Manual_R1.0
Confidential / Released
16 / 57
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