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1000 Threads found on edaboard.com: Noise Canceling
I am working on 1st order DSM ADC with dc input. my input referred noise is in kVolts whereas output noise is in few nVolts. Can anybody tell me why is it happening?
Hello, my name is Juan Motta, I am new to the forum, I would like to consult them because I have a problem with a Panasonic tv tc-20s10La, I already fixed a problems, but what happens now is that if I turn it off and try to turn it on again, it starts to make a click noise, click and it does not turn on, after several days it turns on. It has burne
Hello, my name is Juan Motta, I am new to the forum, I would like to consult them because I have a problem with a Panasonic tv tc-20s10La, I already fixed a problem I had in the tube but what happens now is that the TV turns on, if I turn it off and try to turn it on again, it starts to make a click noise, click and it does not turn on, after sever
Than you Bigboss for you comment, Yes, I have added a S2P component and added a s-parameter file for my amplifier. It works fine that I can see s-parameters diagrams. But How can I add NF( noise figure) to this component too? If noise Figure parameters are added into s-parameter file, it's OK.You can directly simul
That's easy to achieve if you managed to put a strong noise source in your amplifier. It's suppressed by feedback, but suppression is fading toward unity gain. You want to check the contribution of individual transistors to see what the noise source is. You can get listing for specific frequencies.
If your rf detector can pick up a wide range of frequencies then you can try a transmitter in a garage door remote, or a car's remote, or wireless headphones, etc. Electrical noise emanates from many appliances, which your detector may pick up. However it's hard to be sure what reaches your device, whether it's really (a) electromagnetic waves
So I want to buy a spectrum analyzer and I'm going to measure frequency responses up to 150 MHz with it. However, there's an odd situation: analyzer with a tracking generator costs $2500 and the analyzer without one costs $500 and I'm trying to figure out what would be a better option, buying an analyzer with a tracking gen or building a noise sour
Hi, A digital system has limited resolution. As long as the variations are within +/-0.5 LSB around the current value you will see no change. What else do you expect? Btw: Similar with an analog system ... the limit here is "noise". Klaus
Hi, i know that it should be equal to or around 6.02N+1.76 N = 2048; Mind that both "N" represent different things. **** SNR = Signal to noise Ratio = Signal / noise. SNR usually is given in "dB" and signal and noise are given in voltage_RMS. Thus in most cases: SNR(dB) = 20 x log(Signal_RMS / noise_RMS)
Are the Batteries connected to "B+ & B-" or "U+ & U-" ? A1) C1, C2 & C3 appear to suppress switching noise. A2) The battery is charged by the 3 Phase Full-Wave Bridge Rectifier, consisting of the 3 SCR's & 3 Diodes with smoothing by L1 + C1 + L2 + C2 A3) Assuming the Batteries are connected to "U+ & U-" then TS Controls the Charging Current, m
Hi, It's a theoretical question... maybe an interview question? And there is a lot of information missing. For example: I'd like to know what's the purpose of both signals...how are they treated at the receiver side? And if the "1V" means "DC level" Let's assume it is some you are talking about AC level (RMS?). Then the noise will influence bo
Active bias wants that negative voltage controlled, to get a chosen drain current setpoint. The -6V is probably the supply rail and pinchoff of the FETs / HEMTs probably about -3V, to be set by a feedback amplifier (or cal-mapped DAC, or ...). I have no good idea of the amplifier particulars to say whether the negative voltage pin is the
hi everybody: I need to design a qvco which works at 25Ghz,and i use the IBM 0.13um Bicmos technology,but something wrong happened when I simulated.There are three questions. first.when I simulated the vco using S-qvco and P-qvco architecture, but I canĀ?t simulate S-qvco better than P-qvco, I can only simulate S-qvco for -93dBc@1Mᦁ
Hi allen, I am not familiar with TSMC 65nm PD, but with I/O circuits in general so my answer might or might not be heplful/ 1 - Analog I/O IP should come with a documentation in the PDK, in which AC/DC switching characteristics, min and max operating voltage and frequency should be defined. If your application's requirements are in the range
I think the version with Q3/4 also tries to avoid the non-linearity caused by the degeneration resistors because in a way they work with more or less constant Vgs (to a certain extend) and the resistance value is not modulated by the changing Vgs in the case when the gates are connected to a fixed voltage. This circuit is not so much used as full
Hi, read through these similar threads and follow the given recommendations * * It problem still is the same: it is called EMC and can be solved by using a solid GND plane (and o
Hi, I am not familiar with audio design. My designed module has a classic circuit for MIC +- input, as the attachment Our1.jpg. The other side is another vendor, which has a classic mic circuits as Other1.jpg. The problem is when Other1.jpg P and N linked to Our1.jpg MICP and MICN, the user can hear big noise and the voice is not clear. What
Dear all. I have Electronic board with power supply , control board etc. I wanted to conduct noise test . Is there any standard procedure available. I wanted to check if i induce the noise into power line or controller line microcontroller will operate normally or Reset everytime. The device work fine in normal condition. when it goto Control p
can someone tell me what is wrong with my code, the result is incorrect ---------------------------------------------------------------------- place this code first on a different file first for the function function table2=BPSKAA(table2) table2=,,,,,,,,[
Hi, it depends on the magnetic path length, and we must not have the gap more than say 10% of that generally. Or say in an ETD core, you wouldnt want the gap more than 20% of the centre leg ferrite length. But it depends on the problems caused by the leakage flux, which sprays out all over the place when the gap is big, and can cause heating in