AnsweredAssumed Answered

HMC662LP3E Logout Voltage & Sloop

Question asked by sss on Mar 19, 2015
Latest reply on Mar 20, 2015 by jdobler

Hi, all.


Our Customer measured Logout Voltage & Sloop with Evaluation PCB 124133 HMC662LP3E @8GHz.


Evaluation PCB 124133 setting is default,

J1:SG E83640B (HP/Agilent/Keysight)


J3,J4,J5:E3633 (HP/Agilent/Keysight) 3.3V/84mA,Normal mode.


In the datasheet specification,

LOG OUT & Error vs. Input Power, Fin = 8 GHz

Logout Voltage:1.25V@-30dBm

Output Sloop:14mV/dB


Our Customer measured data is, @8GHz

Logout Voltage:0.59V@-30dBm

Output Sloop:6.5mV/dB


Logout Voltage & Sloop data is both 1/2.

Other frequency (10,18GHz) also is similar 1/2 characteristics.


What is wrong at customer measurement?

Behavior of Evaluation PCB strange?


Please advise to me.


Best Regards,