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23 Threads found on edaboard.com: Design An Active Bandpass Filter
i wanna design a bandpassfilter on a FR4 pcb 1.6mm thickness.The range is between 70Hz and 30kHz.Cutoff frequency at 200Hz and 10kHz. Pls advise me what type of capacitor to be used as listed below: 1. 220nF 2. 100nF 3. 470uF Is there any strict rules to make a good design during layout a PCB?
I want to design a bandpassfilter that is used for IR_Detector, the frequency is 36Khz-40Khz and the output signal is always active low when the signal passes and active high when no signal. Does any one give me the schematic or documentation....? Thanks and best regards
I want to design an active band pass filter for frequency of 1200Hz to 7000Hz. My center frequency is 2898.2Hz. Can anyone please forward me the circuit based on Opam and the components details? Thanks in Advance, Mori
you should use OP to construct a active bandpass filter, the pcb may has negligible effect on your filter. best regards I wanna design a bandpassfilter on a FR4 pcb 1.6mm thickness.The range is between 70Hz and 30kHz.Cutoff frequency at 200Hz and 10kHz. (...)
Dear Try filter Solutions. about filter Solutions : filter Solutions is a comprehensive PC based filter synthesis and analysis software package. filter Solutions provides passive and active circuit synthesis and modification analysis with parasitic effects, and digital (...)
I have to simulate the noise performances (with Spectre) of an active bandpass filter working up to 1.5 GHz. It's 50ohm input/output matched and what I do not understand is which noise analysis I must use. First, I used Noise analysis in Cadence and during the design I noticed clear noise improvement by choosing the right (...)
It's very uncommon to use an active band pass filter with a Q as low as 0.5 because you can realize it with a passive network. However, it should be possible with the MFB topology. If you have problems in finding the part values, use a filter design program (available via internet).
At those frequencies, a Chebycheff or Cauer type bandpass filter within an amplifer will be very proper.You can change the capacitor values by switching CMOS transistors that are digitally controlled.For more information, see active filter design methodologies.For inductances, you can use bonding wires and (...)
You can use OpAmp to design a filter, use ADS to simulate it. Why use ADS to simulate an active filter in the kHz range? There is a lot of free synthesis software for active filters, for example filterPro from Texas Instruments or filterlab from
Dear Milad. Would you please explain more about active BPF design. I want to design a 160MHz filter with 10MHz bandwidth. tnx
Dear Luv,do you know that is there any single bandpass filter? in fact it is asked that we should design a bandpass filter by using switch-capacitors! There are many ways to realize a "single bandpass filter". However, in your case with a very large passband (from 1 MHz (...)
It contains : 卷 PROGRAM 的文件夹 PATH 列表 卷序列号码为 0006FE80 9580:5E40 E:. +-active bandpass filters_files +-antenna pre-selector filters_files +-band pass filters_files +-Circuit Sage filter (...)
hello friends...i'm beginner in this forum....i from Malaysia....anybody can help me to design 1.5Ghz microstrip antenna for GPS receiver...plz email me at nyamook@hotmail.com....thanx
When designing band pass filter you must satisfy few criteries. First you must define 3dB pass band or ripple. Second, bandwidth where you define wanted attenuation. Third, chose filter type Butterworth, Chebyshew etc. filter in your case 1k-8k can be passive or active what is easier to realize. Better (...)
A perfect High pass filter is not possible, because the open loop frequency response fo the op amp is a Low pass filter. If you design a high pass filter joined with the frequency response gives you a band pass filter.
Hi All, Anyone know how design a bandpass filter with freq=19.44M, and bandwidth=10MHz with the discrete circuit? Pls help. Many thanks. Regards, Hay
Without experiences in designing DRO´s, I tried to develop some DRO-circuits with 2 different BJT´s (BFP405, NESG2120M05) in common emitter and series-feedback without success. The only simulation-tool I have is the freeware of ansoft designer without the possibility to simulate active devices. To learn the functionality of a DR, the (...)
This give me a very big filter that can't be realized with analog design. I never see a big filter before an ADC so what kind of filter can I need ? Something like a 7th order elliptic filter can fulfill the specification. These filters can be realized, either active or (...)
I would suggest an analog filter. Look at TI filter Pro. active filter design Application - filterPRO - TI Software Folder . Keith.
My aim is to use the intrinsic capacitances of the Mosfet Cgs to interact with the simulated inductance. At some point higher up the frequency, the circuit L and Cgs will resonate. "At some point"......OK, but don't you intend to design (that means: to choose) the resonant frequency? Don't forget, your active ind
Abstract: The authors describe how triple-output OTAs facilitate the development of a new current-mode universal biquad configuration capable of generating various filter transfer functions using digitally programmable zeros. This is achieved without excessive use of active devices and without changing the biquad topology. The biquad zeros
Hello, .............. I want a technique through which i can completly isloate the Ac signal which isnt effected by the Dc reduction value. Thanks What do you mean with "isolate" ? Is it your task only to REMOVE the ac signal from the decreasing DC voltage or to extract it for further processing ? As a first guess I
Of course, some phase margin problems can be expected for each active filter as soon as the designed pole Q is relatively high. For example, consider an equal-component S&K low pass filter with a design value of Qp=10. In this case, the non-inv. gain is G=3-1/10=+2.9. That means you are very close to the (...)