LMX2571: Output impedance, differential outputs?

Corey Minyard

Part Number: LMX2571
Other Parts Discussed in Thread: , LMX2694-EP

Tool/software:

I need to match the output with a mixer, what's the output impedance on the synthesizer?

Also, I don't think it's possible, but I'll ask. Is it possible to get differential outputs from this chip?

I need a synthesizer that will work at at least -40-105C that has 0-1GHz range. If the LMX2571 had differential outputs, it would be perfect. Differential outputs would decrease the LO bleed through in the mixer.

Thanks,

-corey

2 months ago

0 Noel Fung 2 months ago

TI__Guru** 100470 points

Hi Corey,

We don't have the s-parameter of this device.

Outputs are not differential, they are two single-ended output with the same output phase.

We don't have many extended temperature devices. LMX2571-EP however is a single-ended output device. LMX2694-EP is differential, it can work up to 15GHz.

0 Corey Minyard 2 months ago in reply to Noel Fung

Prodigy 70 points

Bummer.

I did see the LMX2571-EP, but it's too expensive, unfortunately.

Thanks for the response.

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LMX2571: Output impedance, differential outputs?