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SC14WAMDECT 数据表(PDF) 26 Page - Dialog Semiconductor

部件名 SC14WAMDECT
功能描述  Wireless Audio Module
PDF  36 Pages
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制造商  DIALOG [Dialog Semiconductor]
网页  http://www.dialog-semiconductor.com/
标志 DIALOG - Dialog Semiconductor

SC14WAMDECT 数据表(HTML) 26 Page - Dialog Semiconductor

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Datasheet
Revision 3.0
23-Jul-2015
CFR0011-120-00-FM Rev 5
26 of 36
© 2013 Dialog Semiconductor
SC14WAMDECT SF
Wireless Audio Module
FINAL
7.3 PATTERN FOR PIN 79 ON THE MAIN BOARD
The copper pattern for pin 79 on the main board is very
important because it is part of the internal antenna of
the module. It is used to extend the internal antenna for
optimum RF performance.
The PCB pattern shown in Figure 19 under “pads C”
was used for pin 79 on the main board during module
certification.
7.4 PRECAUTIONS REGARDING UNINTENDED
COUPLING
The SC14WAMDECT SF includes an internal antenna,
so at integration on the main board precautions shall
be taken in order to avoid any kind of coupling from the
main board to the RF part of the module.
If there is any doubt about this, a brief radio test should
be performed.
Figure 14: Module placement on the main board (top view)
1
78
No PCB area
2
3
76
77
GND
GND
GND
79
Main board
Module
antenna extension
> 10 mm
> 10 mm
> 10 mm
No GND area



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