BLE 5.1, Modules, BC40C, BC40M, BC40P
Ver 0.90 May 2021
21
EV-BC40C EvaluationBoard Schematics
Evaluation board schematics and Gerber files can be downloaded from
http://www.fanstel.com/download-document/
Evaluation board can be used as a reference design for using modules. EV-BC40C is designed for the BC40C
soldering pads with 64 pins. This EV board can also be used for BC40M and BC40P modules. An external
antenna required but not included in EV-BC40P.
Suggestion for Battery Power Application
Standby current consumption is important for battery-powered product. To reduce host board area, the
followings are embedded in modules:
•
32 MHz, 20PPM main crystal and load capacitors.
•
32.768 KHz, 20PPM sleep crystal and load capacitors.
•
Inductors and capacitors required for VDD power supply DC to DC converter.
•
Inductors and capacitors required for VDDH power supply DC to DC converter.
The external sleep crystal shall be used to have a precise sleep clock frequency. DCDC converter shall be
enabled to reduce power consumption.