I can relate to the "Write Only Boilerplate Specs" which I once did for 5.25" OEM Disk drives ( 30 pages) and never again.... well almost .. contributed a few pages to a few hundred on our AMR 2 way ISM meter reader radio , system & network design spec. I can also relate to your pains. What me worry?
When I did something like this for a low cost Doppler tracking station for sounding rockets, getting perfect 50.0% duty cycle and low phase noise was my challenge with a super fast sawtooth S&H mixer . I discovered the non-symmetrical delays in chips and found tuning the delays for symmetry so the 2nd harmonic by >>60dB got me the solution, since it was hard to read 0.01% duty cycle error on a scope.. Getting a 1e-11 OCVO to survive 15g vibe and 100g shock during flight was another issue on all 3 axes. So that apparent Doppler error was minimal. I even tried CMOS foam for additional shock isolation since I was only allotted 0.25 cm of space clearance in the payload , and I tried to emulate the human brain fluid dampening and ended up with foam and solethane for a non-linear low Q spring. (circa '76 for Black Brandt programs)
When I did something like this for a low cost Doppler tracking station for sounding rockets, getting perfect 50.0% duty cycle and low phase noise was my challenge with a super fast sawtooth S&H mixer . I discovered the non-symmetrical delays in chips and found tuning the delays for symmetry so the 2nd harmonic by >>60dB got me the solution, since it was hard to read 0.01% duty cycle error on a scope.. Getting a 1e-11 OCVO to survive 15g vibe and 100g shock during flight was another issue on all 3 axes. So that apparent Doppler error was minimal. I even tried CMOS foam for additional shock isolation since I was only allotted 0.25 cm of space clearance in the payload , and I tried to emulate the human brain fluid dampening and ended up with foam and solethane for a non-linear low Q spring. (circa '76 for Black Brandt programs)
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