Recent content by aruna1

hi what kind of help do you need

well for architecture they are similar-harvard,RISC architecture for instruction set PIC has 35 and atmel has 131 for reliability i was thinking about features like WDT and BOR

ya i read them but couldn't figure out different of 1.microcontrolller core 2.ALU capabilities

Hi This a question from one of my exam papers.I searched all over internet but couldn't find any article or information source comparing atmel vs PIC in following manner. all i could find was threads talking about which is better.none of them discussed the matter with respective to following...

Homework Statement hello; i have this past paper question relevant to a oscillator they have given the following schematic and question is "identify the type of oscillator giving reasons" Homework Equations The Attempt at a Solution i tried lecture notes,some books but couldn't...

6.2pf is to set upper cutoff point

finally came up with this :smile: circuit tested(built on a PCB) and working

rpi is base resistance(internal)

no no, what i meant is what should be the input impedence of second stage if i want to designit irrespective to cct above posted and what is that HFE times 100 ? and sholudnt we consider rpi of 2nd transistor

ok what is the input impedence of second stage?

well i drowned one according to your rules but it does not simulate well. i can make this on vero board before pcb. i need two stage bjt pre amp.but i don't know output impedence of first stage and input impedence of second age. and how to set this upper frequency (3MHz) and lower freq...

sorry to push this but i have to submit working cct on monday.have to design pcb too.all above this is a kind of punishment he gave to us coz we wee shouting when he enters da class :) .so problem is we don't have time to learn every bit,so any help will be highly appreciated(last year this...

isnt gm fr small signal analysis?

problem is lecturer didnt teach how to design it.he said learn your selfs and design :eek: anyway I'm thinking of using bc639 transistor.so in its data sheet there is HFE values max and min but no hfe values.so can i get HFE = hfe? and should i get intermidetae value between max HFE and min...

Homework Statement I have to design a multistage bjt pre amplifier with following conditions gain 20-60dB input impedence >= 5K ohm output impedence <= 100 ohm bandwidth 300Hz - 3MHz source impedence 600 ohm load impedence 10 K ohm can someone please give me a good tutorial link...