User Manual

BTM4KC Manual
July 29, 2008 AboCom Page 10
Document#: CONFIDENTIAL Revision 0.1
5. Application Note
5.1 Layout guideline
5.1.1 please follow the footprint of module.
5.1.2 Don’t put coppor foil or any trace under the antenna area.
5.1.3 Add a power de-coupling circuit for 3.3V and PA3.3V.
5.1.4 Suggest to take coppor foil or any trace away from the near side with our module.
5.2 Power source
5.2.1 Suggest to use a LDO regulator to convert your power into 3.3V for our module.