LMX2582: Power down the PLL or sleep the PLL

Gerald

Genius 9575 points

Part Number: LMX2582

Hi Experts,

One of our customers work on PLL LMX2582. He wants to power down the PLL or sleep the PLL.

He needs a lock time around 200us afer power-up. it's possible?

He have programmed the PLL in full-assist mode.

I hope you can help us confirm. Thank you.

Best regards,
Gerald

over 1 year ago

+1 Noel Fung over 1 year ago

TI__Guru* 81580 points

Hi Gerald,

This is not possible, the internal LDOs need some time to wake up. Test data shown, for an arbitrary configuration, the PLL/VCO will resume to lock in 6ms, after pulling CE pin back to HIGH.

Clock & timing

Clock & timing forum

LMX2582: Power down the PLL or sleep the PLL