LMX2572: RF Power related queries

Aishwarya K V

Part Number: LMX2572

Hi,

I want to use LMX2572. I have following queries:

1)What is the range of RF input power that can be fed into PLL from OCXO?

2) What is the step (in dB) in which we can control the RF Output power from PLL using register (Example: R44, Bit 13-8)

over 2 years ago

0 Noel Fung over 2 years ago

TI__Guru** 108190 points

Hi Aishwarya,

Power control is not in digital fashion, below shown the power variation you can expect with different power settings.

0 Aishwarya K V over 2 years ago in reply to Noel Fung

Prodigy 80 points

Hi,

So we can vary the power from -40dBm to 10dBm approximately. So what is the step in which we can vary this by register. For example, what will be the variation in dBm if I CHANGE R44[13:8] from 00 to 01?

0 Noel Fung over 2 years ago in reply to Aishwarya K V

TI__Guru** 108190 points

Hi Aishwarya,

here is a zoom-in plot.

Clock & timing

Clock & timing forum

LMX2572: RF Power related queries