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Tool/software:
Is LMQ61460AASRJRR equipped with 'Spread spectrum' feature? If yes, what is the frequency range of spreading?
Thanks,
Wenhui
wenhui@xscapephotonics.com
Hi Wenhui,
You can find this value in section 8.3.9 of the datasheet. It should be +-2% spread across the switching frequency of the device. There is also a pseudo-random pattern that repeats at less than 1.5 Hz, which generates a randomness to the spread-spectrum waveform to reduce the output ripple of the device and help the device achieve better EMI performance at higher frequencies in the FM band and beyond.
Hope this helps,
Joshua Austria