JN5148 NXP Semiconductors, JN5148 Datasheet - Page 28

• Manufacturer Part Number: JN5148
• Description: The JN5148 is an ultra low power, high performance MCU combined with an IEEE802
• Manufacturer: NXP Semiconductors

If two DIO pins cannot be spared, DIO13 can be configured to be a normal DIO pin, and the inverse of ADO
generated with an inverter on the PCB.
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ADE (DIO[13])
ADO (DIO[12])
RX Active
TX Active
ADO (DIO[12])
ADE (DIO[13])
Figure 16 Simple Antenna Diversity Implementation using External RF Switch
Figure 17 Antenna Diversity ADO Signal for TX with Acknowledgement
SELB
SEL
Antenna A
1st TX-RX Cycle
A
Device RF Port
JN-DS-JN5148-001 1v7
COM
Antenna B
B
RF Switch: Single-Pole, Double-Throw (SPDT)
2nd TX-RX Cycle (1st Retry)
© NXP Laboratories UK 2011