LMX2572: Output Power VS Frequency

KAEDE KUDO

Expert 2700 points

Part Number: LMX2572

Hello,

I have a question about LMX2572.

[Q]

Is 'TEST CONDITIONS : fout = 6.4GHz of Pout(Single-ended Output Power)@D/S p7' correct?　

Looking at Figure 165 and Figure 166, Pout is less than 4.5dBm when fout = 6.4GHz and OUTx_PWR = 50.
I think 'TEST CONDITIONS : fout = 3.2GHz of Pout@D/S p7' is correct.

Thanks for your cooporation.

Best Regards,
Kaede Kudo

over 5 years ago

0 KAEDE KUDO over 5 years ago

Expert 2700 points

Hello,

I checked output power with LMX2572EVM.
When fout is 6400MHz @ OUTx_PWR = 50, Pout is about 2dBm.
When fout is 3200MHz @ OUTx_PWR = 50, Pout is about 4.5dBm.
So, I think 'TEST CONDITIONS : fout = 6.4GHz of Pout@D/S p7' is incorrect, fout = 3.2GHz is correct.
Is my understanding right?
Or are these measurement conditions different?

Thank you enough for your professor.

Best Regards,
Kaede Kudo

0 Noel Fung over 5 years ago in reply to KAEDE KUDO

TI__Guru* 81580 points

Hi Kudo-san,

You are right, the output frequency should be 3.2GHz.

0 KAEDE KUDO over 5 years ago in reply to Noel Fung

Expert 2700 points

Hi Noel-san,

Thanks for your fast reply!

Best Regards,

Kaede Kudo

Clock & timing

Clock & timing forum

LMX2572: Output Power VS Frequency