Contents
1 Introduction....................................................................................................................................................... 7
2 Product Overview ............................................................................................................................................ 7
2.1 General Description ................................................................................................................................. 7
2.2 Key Features............................................................................................................................................. 8
2.3 Module Function..................................................................................................................................... 10
3 Application Interface ......................................................................................................................................11
3.1 General Description ................................................................................................................................11
3.2 Module Interface..................................................................................................................................... 12
3.2.1 52-pin Goldfinger ............................................................................................................................ 12
3.2.2 Interface definition .......................................................................................................................... 13
3.3 Power Interface ...................................................................................................................................... 15
3.3.1 Power Design .................................................................................................................................. 16
3.3.2 Reference Design of Power Supply............................................................................................. 17
3.3.3 VDD_EXT 1V8 output..................................................................................................................... 18
3.3.4 Power-on sequence........................................................................................................................ 19
3.4 Reset control........................................................................................................................................... 19
3.4.1 Power off .......................................................................................................................................... 20
3.5 USB interface.......................................................................................................................................... 21
3.6 UART interface....................................................................................................................................... 22
3.7 USIM interface........................................................................................................................................ 23
3.7.1 USIM card reference circuit........................................................................................................... 23
3.7.2 UIM_DET Hot-Plug Reference Design ........................................................................................ 24
3.8 General purpose GPIO interface ......................................................................................................... 25
3.9 Network Indication Interface................................................................................................................. 25
3.10 Analog voice interface......................................................................................................................... 26
3.10.1 Analog Voice Reference Design ................................................................................................ 26
3.10.2 Analog Voice Reference Design ................................................................................................ 27
3.11 PCM audio interface............................................................................................................................ 28
3.12 Antenna Interface................................................................................................................................. 29
4 Overall Technical Indicators ........................................................................................................................ 31
4.1 Overview of this chapter........................................................................................................................ 31
4.2 Operating frequency .............................................................................................................................. 32
4.3 Conducted RF Measurements radio frequency................................................................................. 32
4.3.1 Test environment ............................................................................................................................ 32
4.3.2 Test standards................................................................................................................................. 33