| Parameters | 
                                                                                                            
                                            | Factory Lead Time | 12 Weeks | 
                                                                            
                                            | Mount | Surface Mount | 
                                                                            
                                            | Mounting Type | Surface Mount | 
                                                                            
                                            | Package / Case | Module | 
                                                                            
                                            | Number of Pins | 33 | 
                                                                            
                                            | Operating Temperature | -40°C~85°C | 
                                                                            
                                            | Packaging | Cut Tape (CT) | 
                                                                            
                                            | Published | 2012 | 
                                                                            
                                            | Part Status | Active | 
                                                                            
                                            | Moisture Sensitivity Level (MSL) | 3  (168 Hours) | 
                                                                            
                                            | HTS Code | 8542.39.00.01 | 
                                                                            
                                            | Voltage - Supply | 1.7V~3.6V | 
                                                                            
                                            | Frequency | 2.4GHz | 
                                                                            
                                            | Operating Supply Voltage | 3.3V | 
                                                                            
                                            | Number of Channels | 13 | 
                                                                            
                                            | Interface | SDIO, SPI | 
                                                                            
                                            | Data Rate | 72.2Mbps | 
                                                                            
                                            | Protocol | 802.11b/g/n | 
                                                                            
                                            | Telecom IC Type | TELECOM CIRCUIT | 
                                                                            
                                            | Power - Output | 17dBm | 
                                                                            
                                            | RF Family/Standard | WiFi | 
                                                                            
                                            | Antenna Type | Integrated, Chip | 
                                                                            
                                            | Serial Interfaces | PIO, SDIO, SPI | 
                                                                            
                                            | Current - Receiving | 70mA~88mA | 
                                                                            
                                            | Current - Transmitting | 74mA~192mA | 
                                                                            
                                            | Sensitivity (dBm) | -97 dBm | 
                                                                            
                                            | RoHS Status | RoHS Compliant | 
                                                                                                    
                            
                         
                                                WF111-A-V1 Overview
The RF Transceiver' mounting method is Surface Mount.This RF Transceiver module utilizes the Cut Tape (CT) package for optimized performance.During Transceiver operation, the operating temperature should remain at -40°C~85°C.The high power RF Transceiver operation of the system is controlled by 33 pins.There is 1.7V~3.6V voltage limit on the RF Transceiver.2.4GHz is the RF Transceiver Module's frequency.As a result of its Surface Mount mounting, this Transceiver  is widely used in a wide variety of applications.
WF111-A-V1 Features
Surface Mount
Cut Tape (CT) package
33 pins
1.7V~3.6V volts
WF111-A-V1 Applications
There are a lot of Silicon Labs WF111-A-V1 RF Transceiver Modules applications. 
- Consumer Electronics
- Utility and Smart Energy
- Patient Asset Tracking
- M2M Communication
- Retail
- Remote Control
- Switch
- Low Noise Amplifier (LNA)
-  
- Thermostats