| 参数 | 
               数值 | 
            
                          
                 | Frequency (GHz) | 
                 LF-2.0 | 
              
                          
                 | Typ. IL (dB) | 
                 0.45-0.7 | 
              
                          
                 | Description (Absorptive/ Reflective) | 
                 SP3T (R) | 
              
                          
                 | Typ. Isol. (dB) | 
                 32-20 | 
              
                          
                 | Typ. IIP3 (dBm) | 
                 63 | 
              
                          
                 | Typ. IP 1 dB (dBm) | 
                 37 | 
              
                          
                 | Package (mm) | 
                 QFN 12L, 3 x 3 x 0.75 | 
              
                          
                 | 系列 | 
                 - | 
              
                          
                 | 类别 | 
                 RF/IF and RFID | 
              
                          
                 | RF 类型 | 
                 - | 
              
                          
                 | 频率 | 
                 900MHz, 1.8GHz | 
              
                          
                 | 特性 | 
                 SP3T | 
              
              
           
        
         
       
                         
           
              
                       The AS227-321 is a pHEMT GaAs IC SP3T antenna switch operating in the 900 and 1800 MHz frequency bands. Switching between the antenna and Tx/Rx ports is accomplished with 3 control inputs. When the control inputs are driven with the appropriate voltages, a low insertion loss path is provided from an antenna port to an Rx or Tx port, while the other ports have high attenuation.