LMX2594: S Parameters

ANGUEL ILIEV

Part Number: LMX2594

Hello,

I'm using in a new project the LMX2594 and I need the S parameters of the RFoutAP port. If someone has just used un inductor as pullup how many is the output unmatched respect to 50 Ohm pullup (in datasheet is written " output impedance is far from 50 Ohm"). Hope someone can help me. Thank you and Best regards.

Angel

over 8 years ago

0 Dean Banerjee over 8 years ago

TI__Mastermind 28011 points

Anguel,

The output impedance of our device is theoretically infinite and therefore the outpupt impedance you see is theoretically whatever the pull-up component is. So if you use an inductor, the output impedance would theoretically be whatever it is for the inductor.

Regards,
Dean

0 ANGUEL ILIEV over 8 years ago in reply to Dean Banerjee

Prodigy 40 points

Hi Dean,

Thank you for the reply. Sorry but something it's not clear to me: I expect to "see" inside this port an active component with its S-parameters and the question was if someone has measured this parameters. Many manufacturers ( for example Analog Devices) provide this data, so is it possible to have them?

Regards,
Anguel

0 Dean Banerjee over 8 years ago in reply to ANGUEL ILIEV

TI__Mastermind 28011 points

Anguel,

No one has measured this.

Ideally, it would be nice to know the output impedance of our device without the pull up and then you could take the impedance of your pull-up component in parallel with this to get the total output impedance. But we dont have this data.

Regards,
Dean

0 ANGUEL ILIEV over 8 years ago in reply to Dean Banerjee

Prodigy 40 points

Thank you very much Dean,

I hope with 50 Ohms resistor it will be Ok.

Best Regards.

Angue

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LMX2594: S Parameters