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Size: 890
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Size: 893
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| Deletions are marked like this. | Additions are marked like this. |
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| * Data: [[attachment:CDTrans.out]] * Plot: [[attachment:CDTrans.pdf]] |
* 1G: [[attachment:CDtrans-1G.pdf]] * 1k: [[attachment:CDTrans-1k.pdf]] |
SUS Noise Monitor
Design goals
- No saturations as long as the coil driver input signals are at the 99th percentile or below.
- Provide enough gain (at 20 Hz and above) to boost the DAC noise above ADC noise.
Design inputs
DAC noise model: page 6 of G1401399.
PUM coil driver transfer function. LISO models are available here.
- The worst-case dewhitening state for the noise monitor is ACQ off, LP on.
ADC noise level, about 4 uV/rtHz. (Reference: T070213)
Coil driver input spectra, G1801540.
Coil driver transfer function
1G: CDtrans-1G.pdf
1k: CDTrans-1k.pdf
