Telit Wireless Solutions LE910C1-AP Hardware Design Guide

LE910Cx Hardware Design Guide
1VV0301298 Rev.37 Page 5 of 149 2023-03-16
Not Subject to NDA
Absolute Maximum Ratings – Not Operational 37
Recommended Operating Conditions 37
Logic Level Specifications 38
4.3.1. 1.8V Pads - Absolute Maximum Ratings 38
4.3.2. 1.8V Standard GPIOs 38
4.3.3. 1.8V SD Card Pads 39
4.3.4. 1.8V SIM Card Pads 39
4.3.5. Dual Voltage Pads - Absolute Maximum Ratings 40
4.3.6. SD Card Pads @ 2.95V 40
4.3.7. SIM Card Pads @2.95V 40
5. HARDWARE COMMANDS 42
Turning on the LE910Cx Module 42
Initialization and Activation State 42
Turning off the LE910Cx Module 46
5.3.1. Shutdown by Software Command 47
5.3.2. Hardware Shutdown 47
5.3.3. Unconditional Hardware Shutdown 48
Powering OFF the Module 49
Fast Power Down 50
5.5.1. Fast Shut Down by Hardware 50
5.5.2. Fast Shut Down by Software 53
6. POWER SUPPLY 54
Power Supply Requirements 54
Power Consumption 54
General Design Rules 56
6.3.1. Electrical Design Guidelines 57
6.3.1.1. + 5V Input Source Power Supply – Design Guidelines 57
6.3.1.2. + 12V Input Source Power Supply – Design Guidelines 58
6.3.1.3. Battery Source Power Supply – Design Guidelines 59
6.3.2. Thermal Design Guidelines 60
6.3.3. Power Supply PCB Layout Guidelines 61
7. ANTENNA(S) 63
GSM/WCDMA/TD-SCDMA/LTE Antenna Requirements 63

Telit Wireless Solutions LE910C1-AP Specifications

General

Brand	Telit Wireless Solutions
Model	LE910C1-AP
Category	Control Unit
Language	English