Fibocom L610 Series - Page 7

Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved
FIBOCOM L610 Series Hardware Guide Page 7 of 59
3.5 USIM Interface ........................................................................................................... 36
3.5.1 USIM Pin ....................................................................................................................... 36
3.5.2 USIM Interface Circuit ................................................................................................... 36
3.5.2.1 SIM Card Slot with Detection Signal .......................................................................................... 36
3.5.2.2 SIM Card Slot Without Detection Signal .................................................................................... 38
3.5.3 USIM Hot Plug .............................................................................................................. 38
3.5.4 USIM Design Requirements ......................................................................................... 39
3.6 UART Interface ........................................................................................................... 39
3.6.1 UART Interface Definition ............................................................................................. 39
3.6.2 UART Interface Application ........................................................................................... 40
3.7 Status Indicator ........................................................................................................... 41
3.7.1 NET_MODE Signal ....................................................................................................... 41
3.8 Low Power Consumption Mode .................................................................................. 42
3.8.1 Flight Mode.................................................................................................................... 42
3.8.2 Sleep Mode ................................................................................................................... 43
3.9 ADC Function ............................................................................................................. 43
3.10 Analog Audio Interface ............................................................................................... 43
3.10.1 Support model ............................................................................................................... 43
3.10.2 Analog Audio Interface Define ...................................................................................... 44
3.10.3 Preventing TDD and Other Noises ............................................................................... 44
3.10.4 Microphone Interface Circuit ......................................................................................... 45
3.10.5 Receiver Interface Circuit .............................................................................................. 46
3.11 USB_BOOT Interface ................................................................................................. 47
4 RF Interface................................................................................................................. 48
4.1 L610 Operating Band ................................................................................................. 48
4.2 L610 RF Output Power ............................................................................................... 48
4.3 L610 RF Receiving Sensitivity .................................................................................... 49
4.4 RF PCB Design .......................................................................................................... 50
4.4.1 Antenna RF Connector ................................................................................................. 50
4.5 WIFI/BT ...................................................................................................................... 52
4.6 GNSS ......................................................................................................................... 52
4.7 Antenna Design .......................................................................................................... 53
5 Electrical Characteristics .......................................................................................... 55
5.1 Limiting Voltage Range ............................................................................................... 55