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RN52 Datasheet(PDF) 13 Page - Microchip Technology

No. de pieza RN52
Descripción Electrónicos  Bluetooth Audio Module
PDF  26 Pages
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Fabricante Electrónico  MICROCHIP [Microchip Technology]
Página de inicio  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

RN52 Datasheet(HTML) 13 Page - Microchip Technology

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 2015 Microchip Technology Inc.
DS70005120A-page 13
RN52
2.0
APPLICATIONS
The following sections provide information on design-
ing with the RN52 module, including restoring factory
defaults, using the LED interface, minimizing radio
interference, solder reflow profile, typical application,
etc.
2.1
Minimizing Radio Interference
When laying out the host PCB for the RN52 module,
the areas under the antenna and shielding connections
should not have surface traces, ground planes or
exposed via (see Figure 2-1). For optimal radio perfor-
mance, the RN52 module’s antenna end should
protrude at least 31 mm beyond any metal enclosure.
Figure 2-2 shows examples of good, bad, and
acceptable positioning of the RN52 on the host PCB.
FIGURE 2-1:
MINIMIZING RADIO INTERFERENCE
FIGURE 2-2:
PCB EXAMPLE LAYOUT
21.4 mm
4.6 mm
(Top View)
Dimensions are in millimeters
Keep area around antenna
(approximately 31 mm) clear
of metallic structures for
best performance
31 mm
31 mm
Edge of Ground Plain
RN52
RN52
RN52
RN52
Good
Acceptable
Acceptable
Bad



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