Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
0402 capacitor self resonance
I want to bypass the unwanted frequence , so i use the cap. but How can i learn the self resonance of a SMT capacitor ? for example , i want to filter out some frequences on the power supply of GSM900&1800&1900.
I have a RFIC for handphone. There is a PLL filter exteral to chip. how
can i caculate this filter , such as bandwidth , etc. Is there some reference
for it. THKS in advance.
Who can help me ?
I want to know the spec of GSM900/1800/1900 IQ modulator output and demodulator input , such as the bandwidth , nominal freq, phase error,ect. Here is a Zero-IF and direct Conversion system.
How to measure matching?
There is a matching circuit between SAW filter and LNA on a PCB. when
needs measuring the matching of this circuit . How to measure ? It works
GSM900 band , i think only power to measure after SAW filter and before
LNA with Spectrum Analyzer, is right? Pls give me a...
+s11 is positive +simulation
Hi , I am a newer for amp designing.
Here is a problem , flatulent said that "the second stage is loading the first stage both real and capacitive impedance loading. You need an emitter follower between them. " why to place a emitter follower between the first...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
