BLE 5.1 Modules, BT40/F/E
Ver
0.90
March
2021
20
EV-BT40F 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-BT40F is designed for the BT40F
soldering pads with 61 pins. This EV board can also be used for BT40, BT40E, BT40X, and BT40XE modules.
Suggestion for Battery Power Application
Standby current consumption is important for battery-powered product. We suggest adding a 32.768 kHz
crystal and 2 capacitors on host board. The 32MHz main clock won
’
t be active at idle state to save power.
Two inductors required for on-board DC to DC converter are inside BT40F. You can enable DCDC converter to
have lower power consumption.
