Leo
Happy either way, I would buy one off you if you made one but if don't want to spend the time, I can put together a PCB. However my design would have to go through PCB Wing in China and would not be as fast as you seemed to have put something together. I was very impressed.
Do you have available a sketch of what you have done.
The photo seems to be just the two prescaler chips. Did you implement the enable, power on and high power functions and if not are you aware of the impact of this??
Also you mentioned changes to the synth for the higher frequency versions not sure what you mean by this. Is this something to do with the available divide ratios of the cascaded prescalers?
I'm with you on the online offerings of the 1GC1-4210. Very suspecious.
Thanks for any assistance you can offer.
Dave Ireland
Sent from my Samsung GALAXY S5
toggle quoted message
Show quoted text
-------- Original message --------
From: Leo Bodnar <leo@...>
Date: 26/11/2018 22:01 (GMT+08:00)
To:
[email protected] Subject: Re: [HP-Agilent-Keysight-equipment] Synthesizer module in ESG series E4435B
I have tried yet another version and confirmed that it now covers 4GHz and and 3GHz instruments.
Component changes are part of live design process, Dave, - everything needs to fit onto 6x8mm PCB.
What's your plan with the schematic?? I don't want to waste my time on drawings. If you are planning on making a PCB I'd rather wait and buy one off you instead of wasting time with this.? My end goal is to continue my phase noise measurement experiments that were halted due to E4435B and E4425B failures.
Ideally, I would have bought guaranteed working 1GC1-4210 online but all the offerings are dodgy - even the pictures of "new" ICs show bent pins.? It would cost ?100 and few weeks to gamble and find out the result.? And at the end of the day, 1GC1-4210 seems to be fundamentally flawed so putting a new one in is planting a new ticking bomb.
Thanks
Leo
