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4.2
Operating Frequencies............................................................................................................................35
4.2.1
Operating Frequencies ..... ..................................................................................... ........................35
4.2.2
Power Class…………. ..... ............................................................................................................37
4.2.3
EN-DC…………….......................................................................................................................40
4.3
Conducted RF Measurement.................................................................................................................42
4.3.1
Test Environment………... ............................................................................................................42
4.3.2
Test Standards…………… ............................................................................................................42
4.4
Conducted Rx Sensitivity and Tx Power................................................................................................43
4.4.1
Conducted Receive Sensitivity.......................................................................................................43
4.4.2
Conducted Transmit Power/ACLR.................................................................................................45
4.5
Antenna Design Requirements………….................................................................................................48
4.5.1
Antenna Design Indicators ............................................................................................................48
4.5.1.1 Antenna efficiency .................................................................................................................48
4.5.1.2 VSWR ....................................................................................................................................48
4.5.1.3 Isolation ..................................................................................................................................48
4.5.1.4 Antenna line PCB drawing guide............................................................................................48
4.5.2
Interface ………………….............................................................................................................49
4.5.3
GSM/WCDMA/LTE Antenna Requirements ............................................................................ ....50
4.6
Link budget……………………………................................................................................................52
4.6.1
Tx link budget …………….......................................................................................................... .52
4.7
PCB Recommendation………………..................................................................................................53
5
Electrical Features.......................................................................................................... ........................................55
5.1
About This Chapter.................................................................................................. ............................. 55
5.2
Absolute Ratings….................................................................................................................................55
5.3
Operating and Storage Temperatures and Humidity............................................................................. 55
5.4
Electrical Features of Application Interfaces…….................................................................................56
5.5
Power Supply Features…………………………...................................................................................56
5.5.1
Input Power Supply........................................................................................................................56
5.5.2
Power Consumption......................................................................................... ..............................57
5.6
EMC and ESD Features……………………………...............................................................................62
6
Package Information.......................................................................................................... ....................................63