Product Info

Jiangsu Tech-leading information technology Co., Ltd.
Figure 4- 3:
Module design size
4.3
Attention
Bluetooth works at the frequency of 2.4ghz, so influences of various factors on wireless
transceiver should be avoided as far as possible. The following points should be noted
：
 Avoid using metal as part of the product housing surrounding the module. If the housing is metal,
consider using an external antenna。

The
metal screws inside the product should be kept away from the RF part of the module。
 To
maximize RF performance, the user host board layout should follow the following
recommendations：
1)
Antenna clearance area: the user's host board located directly below the module antenna
area shall not have any copper foil wiring （Including power supply, GND and signal layer)
。
2)
Module location: Ideally, the module should be placed in a corner of the user's host
board, with the PCB antenna located far away from the host board edge, this position minimizes
the antenna clearance area
.
（Re
fer to the following figure for the definition of antenna clearance area）
Figure
4- 4 Antenna Keep out
11
Module overall size
Length (X) 11.20 ± 0.15 mm
Width (Y) 16.00± 0.15 mm
Antenna location size
Length (X) 11.20 mm
Width (Y) 4.34 mm
PCB thickness
Height (H) 0.80 ± 0.05 mm
Module thickness（
PCB thickness+
Maximum
component height）
Height (H) 2.50 mm typical