Specifications

L70 Hardware Design
L70_HD_V1.0 - 2 -
Contents
Contents ............................................................................................................................................ 2
Table Index ........................................................................................................................................ 4
Figure Index ...................................................................................................................................... 5
0. Revision history ............................................................................................................................ 6
1. Introduction ................................................................................................................................... 7
1.1. Related documents .............................................................................................................. 7
1.2. Terms and abbreviations ...................................................................................................... 7
2. Product concept ............................................................................................................................. 9
2.1. Key features ........................................................................................................................ 9
2.2. Block diagram ................................................................................................................... 10
2.3. Evaluation board ............................................................................................................... 11
2.4. New technology................................................................................................................. 11
2.4.1. EASY technology .................................................................................................... 11
2.4.2. AlwaysLocate
TM
mode ............................................................................................ 11
2.4.3. Multi-tone AIC ........................................................................................................ 12
2.5. Protocol ............................................................................................................................. 13
3. Application interface ................................................................................................................... 14
3.1. Pin assignment of the module ........................................................................................... 14
3.2. Pin description ................................................................................................................... 14
3.3. Operating modes ............................................................................................................... 16
3.4. Power supply ..................................................................................................................... 16
3.5. Turn on and Turn off ......................................................................................................... 17
3.5.1. Turn on .................................................................................................................... 17
3.5.2. Turn off.................................................................................................................... 17
3.5.3. Restart ...................................................................................................................... 17
3.6. Power saving mode ........................................................................................................... 18
3.6.1. Standby mode .......................................................................................................... 18
3.6.2. Back up mode .......................................................................................................... 18
3.6.3. Periodic standby mode ............................................................................................ 20
3.6.4. AlwaysLocate
TM
standby mode ............................................................................... 21
3.7. UART interface ................................................................................................................. 21
3.8. ANTON ............................................................................................................................. 22
4. Antenna interface ........................................................................................................................ 24
4.1. Antenna ............................................................................................................................. 24
4.2. Antenna supply .................................................................................................................. 24
4.2.1. Passive antenna with external LNA ......................................................................... 24
4.2.2. Active antenna without external LNA ..................................................................... 25
4.2.3. Active antenna with external LNA .......................................................................... 26
5. Electrical, reliability and radio characteristics ............................................................................ 27
5.1. Absolute maximum ratings ................................................................................................ 27
5.2. Operating conditions ......................................................................................................... 27
Quectel
Confidential