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64 Threads found on Noise And Rms
most spectrum analyzers simply measure the power spectral density of the phase noise, and integrated it to show rms jitter. On the average, it is an accurate calculation.
Please can anyone one help me in calculating the noise in Vrms. I have got the noise in cadence in uV/sqrtHz now I want to convert the uV/sqrtHz in Vrms. I have the noise result attached. Do I have to use calculator if yes the how? I want to calculate PSRR in cadence of an OTA. Can any one help me step (...)
why 8 uV/sqrt(Hz)? why not 8 uV/(Hz)? Due to the nature of electronic noise. See: and Equivalent input noise=9.23 μV or 20.64 nV/√Hz why those two the same? A noise bandwidth of 200 kHz links both values, also explained in the above quo
Hi All, would anyone in this forum help me in a noise calculation problem? I post this in a different forum but did not get any answers. ------ I have the noise simulation results for a bandgap circuit. Am trying to calculate rms noise over 0.1Hz to 10Hz but not sure if my calculation is correct. Here is (...)
Hi All, I have the noise simulation results for a bandgap circuit. Am trying to calculate rms noise over 0.1Hz to 10Hz but not sure if my calculation is correct. Here is my results. The left figure and the right figure were plotted from the same data. The only difference is that the Y-axis of the right (...)
The power darlington transistors need heatsinks. If the output voltage swing is as high as 8V rms then the output power is 8W into 8 ohms and each darlington heats with almost 2W. The 741 opamp was designed 48 years ago! It is noisy and its slew rate cuts its high level frequencies above only 9kHz. A modern low noise audio (...)
Hi Saad, Say you have the noise voltage expressed as εn . Then the (normalized) power spectral density is εn2 [V2. The normalized power in a bandwidth B is εn2B [V2 The rms voltage is VEF=sqrt(εn2[/SUP
First try to define ( by commercial comparison) your expectations in a value for; -equivalent input noise and signal range -THD -Output peak power -rms power, and temperature rise from losses. -Load impedance range vs power and frequency response deviations If you can afford to avoid poor choices of (...)
See equation for rms Period Jitter in attached figure. How to derive this equation ? Especially, how is sin() term from ?
You are looking to design a Window Comparator which requires two Comparators with wired OR output low for detecting UV or OV. This requires low ripple or noise inputs, hysteresis, supply filtering and a good low noise reference voltage for comparing the scaled inputs. Define your spec first using rms converted to peak. (...)
The quantization error produces harmonics which extend well past the nyquist bandwidth of DC to Fs/2. However, all those higher order harmonic must fold back into the nyquist bandwidth and sum together to produce the rms noise. you can think of this process as FIRST doing QUANTIZATION (which produces (...)
Hi, I have designed a front-end readout circuit which consist of a preamplifier and pulse shaper in Mentor Graphics. Now I want a noise simulation, from transient noise simulation I got the circuit output rms noise voltage, but how do I know each individual transistor noise contribution? (...)
Unless there you don't mind measuring Signal + noise, the appropriate method is to convert Peak to rms assuming Sine wave and rms=Peak/Root(2) or 0.707 x Vp as Audioguru stated. If you want to eliminate noise, then a tracking filter is needed.
. It depends on your sampling rate. ADC is linear but your detector is not. Do you want to only track changes in Vac over long term or short term interruptions or do statistics Avearage & deviations ? Choices: quasi rms with Peak, P-p or rectified average I would use LPF noise filter and rectified average with another LPF. 200Hz LPF (...)
noise reduction is equal to the square root of no. of samples taken. for more details and mathematical analysis read the
here's one guess --- don't take it as gospel, but it make put you on the right track : noise voltage average is considered to be zero. However noise power is not. Thats where the v^2 comes from of course. However note that its not absolute noise power, but rather mean noise power. That might imply a (V/2) ^2, (...)
Hello, My flyback transformer is making a noise. and its loud that I can here it in the next room. This flyback transformer is a part of smps based on UC3842. with TL431 feedback. I have connected lamp as a load. It glows, but I am not able to measure its voltage, because the digital multimeter shows some random reading (The meter is (...)
IN my lab ,there is a PNA N5247 without options 029, if i want to measure the NF ,i must buy options 029,but i have found that the options 029 is too expensive to me i must find other method to measure the noise figure ,there is a N8975A in my lab too, but its maximum frequency is 26.5G ,so i must add blockdown converter ,N8975AZ-K40/K50 is a b
EVM(%) = *100 = *100 = 5% For Modulation Error Ratio you need the average power of the signal and of the noise. But MER generally is very close to EVM.
hello! Does anyone know how to get the rms output noise and input dynamic range of a transimpedance amplifier using cadence or synopsys? Please help me. I don't have any idea on how to get it..