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Bluetooth Module

ABRACON IS

ISO 9001 / QS 9000

CERTIFIED

ABRACON IS

ISO 9001:2008

CERTIFIED

30332Esperanza, Rancho Santa Margarita, California 92688

Visit www.abracon.com for Terms & Conditions of Sale

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Resistive

16

OC

Ω

Revised: 08.14.13

ABBTM-NVC-MDCS56

23.24 x 11.93 x 2.05 mm SMT

ABBTM-NVC-MDCS56 requires an external antenna to radiate and receive the RF signals. Please follow general RF

design guidelines to ensure a good RF performance.

Placement of the Module and Antenna

If PCB antenna is used, please take precaution with the antenna placement. Figure 13 shows some examples of the

antenna placement.

1 , 2 , 3 : Recommended antenna placement

4 : Placement not recommended

Figure 13. Placement of the Module and Antenna on a PCB Board

RF LAYOUT GUIDELINE

Feed Line and Antenna

The impedance of the feed line between the RF port and the antenna shall be 50Ω.

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A good ground directly under the feed line is always needed for impedance control.

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Route the feed line as curve lines when needed, avoid 90 or even less degree angles style.

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The width of the feed line, the distance of the feed line to the ground plane are keys to the impedance.

Please ask your PCB supplier to control the impedance of the feed line.

For the antenna,

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When PCB antenna is used, matching networks shall be used to optimize the antenna’s signal strength.

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Use as many vias as possible to connect the ground planes nearby the antenna.

Figure 14. Antenna Reference Design