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siddharthgoyal
.Please tell me the impedance of LO input at 10MHz and also the value of the components(C3,C4,C5,L5) required for the  reactive matching at this frequency
in RF and Microwave
sunsong77
hello ADI engineers, I draw the pcb as the ADL5375 datasheet like following figures, drive the circuit with 5-V source, the working current is about 230 mA, much higher than the given typical value as 194 mA. Is it normal? what's the problem. I used the VSG keysight n5182a generated the 5-Mhz IQ signal with 1 Vpp and 0.5 V offset. Use E4438C… (Show more)
in RF and Microwave
OTI
Could you give me a advice? the measurement and equation is not match Pleas give me a advice?        
in RF and Microwave
dkozel
On page 35 of the ADF5355 datasheet there is a mention that "Much faster lock times than those detailed in this data sheet are possible; contact Analog Devices for more information". My application will in the future need to support retunes that are as fast as I can make the system tune. Any information about improving the lock times would be much… (Show more)
in RF and Microwave
liangbin
I would like to program the SPI (LE, Data and CLK) for the HMC765LPCE by using FPGA. I would like to achieve the output frequency of the PLL at 7912.5 MHz, is it correct to let R=1, Nint=158, and the Nfrac=2^22? How does HMC765 identify if I would like to program register 03H? This is not explained either in the datasheet or the operating guide.… (Show more)
in RF and Microwave
santanusinha
Dear Sir,   I am using HMC778 to generate single frequency output at 10.8 GHz. I am using SPI in HMC mode to program the device and the base XTAL frequency to HMC778 is 100 MHz. Can I get the register sequence and value for this configuration ??    Thanks Santanu Kumar Sinha
in RF and Microwave
spaceengineer
I use the EV-ADF5355 evaluation board. After power down the setting is lost. I would like to know if there is any chance to store the synthesizer configuration on board. And maybe have it automatically programmed after power up
in RF and Microwave
BroadBand-01
Dear Sirs, since four years we used the ADRF6602 as a down-converter. LO freq. = 1605,425MHz. We never changed the hardware (PCB) and also the software was never changed. The converter worked fine the hole time. Now - arround four years later a problem appears: arround 40% of the used chips can't lock the PLL after init the register. Here are… (Show more)
in RF and Microwave
amirwe
We would like to know regarding the evaluation board. We need to insert two RF signals differentially will it be possible. That is RF+ RF- to same mixer
in RF and Microwave
fleischmann
The attached Hittite Appnote recommends using gold wire for GaAs MMIC wire bonding. Do you have any information/recommendation about bonding such chips with Aluminum wire?   Our bonder suggested using aluminum wedge-wedge bonds for the shortes bond lengths.   Thanks, Patrick
in RF and Microwave
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