Hardware User Manual
RFCOM Technologies
RTBTM01 BLE Module
Page 24 of 30
Figure 8-4
2-wire UART Pin Function
9.
Mounting Requirements & Parameters
9.1 Mounting Requirement
RTBTM01 is a sensitive RF module. While using default on-module antenna, it
’d better to be mounted at the
corner of the application board and reserve some keep out space to the components on the application board.
The RTBTM01 antenna is optimized for application board thickness of 1.0 mm. Do not place any metal (traces,
components, battery etc.) on all layers within the keep-out area of the antenna. Connect all the GND pins
directly to a solid GND plane and punch the GND vias on application board as close to the module GND pins
as possible. Use good layout practices to avoid any excessive noise coupling to signal lines or supply voltage
lines.
The figure below illustrates how to mount the RTBTM01 module.
Improper mounting will decrease the RF
performance dramatically.
Application Board
Keep Out
Area
S
h
ie
ld
C
a
n
Figure 9-1
RTBTM01 Mounting on Application Board
