Product Info
Table Of Contents
- About the Document
- Contents
- Table Index
- Figure Index
- 1Introduction
- 2Product Concept
- 3Application Interfaces
- 3.1.General Description
- 3.2.Pin Assignment
- 3.3.Pin Description
- 3.4.Power Supply
- 3.5.Turn on and off Scenarios
- 3.6.VRTC Interface
- 3.7.Power Output
- 3.8.Battery Charge and Management
- 3.9.USB Interface
- 3.10.UART Interfaces
- 3.11.(U)SIM Interfaces
- 3.12.SD Card Interface
- 3.13.GPIO Interfaces
- 3.14.I2C Interfaces
- 3.15.ADC Interfaces
- 3.16.Motor Drive Interface
- 3.17.LCM Interface
- 3.18.Touch Panel Interface
- 3.19.Camera Interfaces
- 3.20.Sensor Interfaces
- 3.21.Audio Interfaces
- 3.22.Emergency Download Interface
- 4Wi-Fi and BT
- 5GNSS
- 6Antenna Interface
- 7Electrical, Reliability and Radio Characteristics
- 8Mechanical Dimensions
- 9Storage, Manufacturing and Packaging
- 10Appendix A References
- 11Appendix B GPRS Coding Schemes
- 12Appendix C GPRS Multi-slot Classes
- 13Appendix D EDGE Modulation and Coding Schemes
Smart LTE Module Series
SC20 Hardware Design
SC20_Hardware_Design Confidential / Released
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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 series module supports 2.4GHz/5GHz double-band WLAN wireless communication based on IEEE
802.11a/b/g/n standard protocols. The maximum data rate is up to 150Mbps.
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
4.1.1. Wi-Fi Performance
The following table lists the Wi-Fi transmitting and receiving performance of SC20 module.
Table 27: Wi-Fi Transmitting Performance
Standard
Rate
Output Power
2.4GHz
802.11b
1Mbps
16dBm±2.5dB
802.11b
11Mbps
16dBm±2.5dB
802.11g
6Mbps
16dBm±2.5dB
802.11g
54Mbps
14dBm±2.5dB
802.11n HT20
MCS0
15dBm±2.5dB