| | 11 | |
| | 12 | == Schematics and component placement == |
| | 13 | |
| | 14 | The schematics and component placement files can be found attached to this page. |
| | 15 | |
| | 16 | |
| | 17 | == Part numbers == |
| | 18 | |
| | 19 | All capacitors, inductors and resistors are 0603 footprint, with the exception of C1 (0402). |
| | 20 | |
| | 21 | * MCX socket is a Tyco Electronics 1-1337581-0 |
| | 22 | * CR2032 battery holder is a MPD BA-2032 |
| | 23 | * The 2.5mm jacks are CP-2523SJCT |
| | 24 | |
| | 25 | == Jumpers == |
| | 26 | |
| | 27 | * J1 connects VBAT with VCC, i.e. should ''only'' be placed if you ''do not have a battery attached'' |
| | 28 | * J1 connects VIO with VCC. This is the case when VIO (Voltage for digital i/o) is ''not provided by an external circuit attached to X2 |
| | 29 | * JP4 is the power supply connector. Apply 3.8..6V regulated DC power to it. Center pin is positive, outer pins both GND |
