HMC908 EVB_Noise Floor

Question

Hi Everyone, 
 I have a problem with HMC908LC5 Evaluation Board. The noise floor value on the board 
 suddenly increases from Pin=-30dBm as attached. Is it normal performance? I need to bring it 
 down to -140 or -130 dBm. Do you know any method of improving this? 
 Tawaraya

Kazu · Accepted Answer

Hi Taz, 
 Thank you for the reply. Yes, this is a new design and we need alternative part. 
 I found HMC1113 in your wabsite but its P1dB value (-7 dBm) did not meet our request (-4~-5 dBm at least) 
 Also we need the reason for the increase on the noise floor of HMC908. 
 Thanks, 
 Kazumasa)

Electronic Design Services - PartnerZone

Products Mentioned

HMC908 EVB_Noise Floor