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What is the limits of the radio power supply for SKY65313 PA?

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Cisco Employee

Original question:

What is the acceptable maximum ripple on the 4.3V supply voltage? Will 5% at 120Hz. Is that fine for the Radio?

What are the limits of the radio supply wise?

Answer:

The bias inside the chip should remove most of the ripple but the VCC1 and VCC2  are collector VCCs.  There will be some side band at +/- 120 Hz.  These side band are generated at the transceiver and FEM.  The best answer would be the see the effect on the packet error rate.

The max VCC rating is 5 volts on the SKY65313.

Suggest to test the PER on the overall system to see if the ripple produce an effect.

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