BMD-300 - Data sheet
UBX-19033350 - R23 Contents Page 3 of 33
Contents
Document information ................................................................................................................................ 2
Contents .......................................................................................................................................................... 3
1 Functional description ......................................................................................................................... 5
1.1 Features ........................................................................................................................................................ 5
1.2 Applications ................................................................................................................................................. 5
1.3 Block diagram .............................................................................................................................................. 6
1.4 Product specifications ............................................................................................................................... 7
2 Pin definition ........................................................................................................................................... 9
2.1 Pin assignment ............................................................................................................................................ 9
3 Electrical specifications ................................................................................................................... 11
3.1 Absolute maximum ratings ....................................................................................................................11
3.2 Operating conditions ................................................................................................................................11
3.3 General purpose I/O ..................................................................................................................................11
3.4 Peripheral pin assignments ....................................................................................................................12
3.5 Module reset ..............................................................................................................................................12
3.6 Debug and programming .........................................................................................................................12
3.7 Clocks ..........................................................................................................................................................12
3.7.1 32.768 kHz crystal (LFXO) ..............................................................................................................13
3.7.2 32.768 kHz clock source comparison ...........................................................................................13
4 Firmware ................................................................................................................................................ 14
4.1 Factory image ............................................................................................................................................14
4.1.1 Firmware version “AA” .....................................................................................................................14
4.1.2 Firmware version “AB” .....................................................................................................................14
4.1.3 Firmware version “AC” .....................................................................................................................14
4.1.4 Firmware version “AD” .....................................................................................................................15
4.1.5 Firmware version “AE” .....................................................................................................................15
4.2 Module programming and read-back protection ...............................................................................15
4.3 SoftDevices ................................................................................................................................................15
4.3.1 S132 ....................................................................................................................................................15
4.3.2 S212 ....................................................................................................................................................16
4.3.3 S332 ....................................................................................................................................................16
4.4 Bluetooth device address ........................................................................................................................16
5 Mechanical specifications ............................................................................................................... 17
5.1 Dimensions .................................................................................................................................................17
5.2 Recommended PCB land pads ...............................................................................................................17
5.3 Module marking .........................................................................................................................................18
6 RF design notes ................................................................................................................................... 19
6.1 Recommended RF layout and ground plane ........................................................................................19
6.2 Mechanical enclosure ...............................................................................................................................19
6.3 Antenna patterns ......................................................................................................................................20