User's Manual

BlueMod+S42 Hardware User Guide
1VV0301303 Rev.3 – 2016-08-22
Reproduction forbidden without written authorization from Telit Communications S.p.A. - All Rights Reserved.
Page 6 of 62
3.8.2 Power Back feeding ................................................................................................... 27
3.9 Slow Clock Interface .............................................................................................. 28
3.9.1 32,768 kHz Crystal Oscillator Specification (32k XOSC) ............................................ 28
3.9.2 Connection of an External 32,768 kHz Crystal ........................................................... 28
3.10 Test Mode ........................................................................................................... 29
3.11 Operating in a Power-Switched Environment ..................................................... 30
3.12 Serial Wire Debug Interface ................................................................................ 30
3.13 DC/DC Converter ................................................................................................ 31
4 Module Pins ................................................................................................................ 32
4.1 Pin Numbering ....................................................................................................... 32
4.2 Pin Description ....................................................................................................... 33
4.2.1 General Pin Description ............................................................................................. 33
4.2.2 Application Specific Pin Description ........................................................................... 35
4.3 Handling of Unused Signals ................................................................................... 36
5 Electrical Characteristics ........................................................................................... 37
5.1 Absolute Maximum Ratings .................................................................................... 37
5.2 Operating Conditions ............................................................................................. 37
5.3 Environmental Requirements ................................................................................. 37
5.4 DC Parameter ........................................................................................................ 38
5.4.1 General Purpose I/O (GPIO) ...................................................................................... 38
5.4.2 EXT-RES# ................................................................................................................. 39
5.4.3 Analog Digital Converter (ADC) ................................................................................. 40
5.4.4 ADC Reference Voltage ............................................................................................. 40
5.4.5 Analog ADC Input AIN ............................................................................................... 41
5.5 Power Consumption and Power-Down Modes ....................................................... 42
5.5.1 Terminal I/O Configuration ......................................................................................... 42
5.6 RF Performance ..................................................................................................... 44
5.6.1 BLE Receiver ............................................................................................................. 44
5.6.2 BLE Transmitter ......................................................................................................... 45
5.6.3 Antenna-Gain and Radiation Pattern ......................................................................... 46
5.7 Power-Up Time ...................................................................................................... 47
6 Mechanical Characteristics ....................................................................................... 48
6.1 Dimensions ............................................................................................................ 48
6.2 Recommended Land Pattern ................................................................................. 49