Does anyone have S-parameters of ADL5387 and ADL5385? (at least RF port)

In case of ADL5387 I'm using transformer balun, as recommended in the datasheet.

Best regards,

Piotr

Does anyone have S-parameters of ADL5387 and ADL5385? (at least RF port)

In case of ADL5387 I'm using transformer balun, as recommended in the datasheet.

Best regards,

Piotr

Qui wrote:

Hello Piotr,

S-paramter file for the ADL5387 is currently not available and it will take me some time to gather the data. Your patience will be much appreciated. Files for the ADL5380 and the ADL5382 are complete however not the ADL5387.

Qui

Hi,

I will be very grateful if you could gather that data.

Do you have S-parameters of AD8368?

Piotr

Piotr Kaczmarzyk wrote:

Qui wrote:

Hello Piotr,

S-paramter file for the ADL5387 is currently not available and it will take me some time to gather the data. Your patience will be much appreciated. Files for the ADL5380 and the ADL5382 are complete however not the ADL5387.

Qui

Hi,

I will be very grateful if you could gather that data.

Do you have S-parameters of AD8368?

Piotr

Hi,

Do you have any news regarding ADL5387 or AD8368 S-parameters?

Piotr

jdobler wrote:

Hi Piotr,

At which frequency and in what format would you like the S-parameters for the AD8368? You can glean a lot of info for the S-params from figures 17-20 and figure 3. Do you need the reverse isolation (S12) as well?

Regards,

Joel

I'd like to make matching circuits for input and output at 140 and 370 MHz. So S11 and S22 is enough. Is it possible to read values at these frequencies from figures 18 and 20? (both Re and Im parts, not just magnitude)

Piotr

- 1 person found this helpful
Hi Piotr,

Here's the S-parameters you asked for...

Vgain = 0V

140MHz

S11: -0.03 -j0.43 OR 0.053 <-124.5°

S22: -0.038-j0.093 OR 0.101<-112.5°

370MHz

S11: 0.102 +j0.043 OR 0.111<+23°

S22: -0.212-j0.096 OR 0.233<-155.9°

Vgain = 1.0V

140MHz

S11: -0.036 - j0.223 OR 0.226 <-99.3°

S22: -0.130 -j0.226 OR 0.26 <-120°

370MHz

S11: 0.74 - j0.006 OR 0.074 <-4.5°

S22: -0.241 - j0.062 OR 0.249 <-165°

Hope these help you!

Cheers,

Joel

jdobler wrote:

Hi Piotr,

Here's the S-parameters you asked for...

Vgain = 0V

140MHz

S11: -0.03 -j0.43 OR 0.053 <-124.5°

S22: -0.038-j0.093 OR 0.101<-112.5°

370MHz

S11: 0.102 +j0.043 OR 0.111<+23°

S22: -0.212-j0.096 OR 0.233<-155.9°

Vgain = 1.0V

140MHz

S11: -0.036 - j0.223 OR 0.226 <-99.3°

S22: -0.130 -j0.226 OR 0.26 <-120°

370MHz

S11: 0.74 - j0.006 OR 0.074 <-4.5°

S22: -0.241 - j0.062 OR 0.249 <-165°

Hope these help you!

Cheers,

Joel

Is this data correct? First of all I think there is a '0' missing in 140@0V S11 and 370@1V S11. But even after correcting this magnitudes at 140 and 370 MHz are completely different from these in the PDF file. The 0V line is similar, but at Vgain=1V, at 140 S11 has -13 dB, while according to the PDF there should be -30 dB.

Piotr

Hi Piotr,

Attached are the revised raw S-parameters from a new eval board. They match the datasheet much better.

Hope this help,

Joel

From: Piotr analog@sgaur.hosted.jivesoftware.com

Sent: Wednesday, September 07, 2011 2:54 AM

To: Dobler, Joel

Subject: New message: "ADL5387 and ADL5385 S-parameters"

Analog Devices EngineerZone<http://ez.analog.com/index.jspa>

ADL5387 and ADL5385 S-parameters

reply from Piotr<http://ez.analog.com/people/Piotr> in RF Components - View the full discussion<http://ez.analog.com/message/31789#31789

Attached file is the RFout Sparameter of ADL5385. Is this for the matching Modulator output to next stage?