User's Manual

Neo_M680 Hardware User Guide V1.0
Copyright Neoway Techlology Co., Ltd. Page 3 of 31
Contents
Copyright ............................................................................................................................................ 2
1. Introduction ................................................................................................................................ 6
2. General Description ................................................................................................................... 6
3. Simplified Block Diagram ......................................................................................................... 6
4. Key Features ............................................................................................................................... 7
5. Product Specifications ............................................................................................................... 8
5.1 Variants ................................................................................................................................. 8
5.2 Dimension & Package ........................................................................................................... 8
5.3 Pin Description ...................................................................................................................... 9
5.4 PCB foot print ..................................................................................................................... 12
6. Application Interface ............................................................................................................... 13
6.1 Power Supply Requirements ................................................................................................ 13
6.1.1 Power Supply Basic Design Rules ........................................................................ 13
6.1.2 Extended Design Rules for Power Supply: ........................................................... 15
6.2 ON/OFF Procedure ............................................................................................................. 17
6.2.1 Turning on the module: ......................................................................................... 18
6.2.2 Turning off the module: ........................................................................................ 18
6.2.3 RESET .................................................................................................................. 19
6.2.4 VMC
..................................................................................................................... 19
6.3 UART .................................................................................................................................. 20
6.3.1 Basic Descriptions of UART ................................................................................. 20
6.3.2 Level Translators for UART .................................................................................. 20
6.4 Sleep mode .......................................................................................................................... 22
6.4.1 DTR ....................................................................................................................... 22
6.4.2 RING ..................................................................................................................... 23
6.5 SIM interface ...................................................................................................................... 23
6.6 Running LED Indicator ....................................................................................................... 25
6.7 Audio Interface ................................................................................................................... 26
6.8 Antenna Interface ................................................................................................................ 28
7. Mounting the Module onto the Application Board ............................................................... 30