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Author Topic: 4066 problem  (Read 618 times)
studyante
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« on: September 01, 2010, 11:55:28 PM »

may tanong lang po ako tungkol sa 4066. kasi tnry ko siya gamitin gamit ang signal generator. naginput ako ng 5.4khz na square wave na ang amplitude ay mula 0 to 3.3v. tapos sa control input po ay 3.3v na dc. yung supply ko po ay 5v at 0v. tama po ba tong ginawa ko? kasi nung tinest ko siya naging 600mv yung peak to peak tpos yung swing ay mula 3.8v to 4.4v..
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« on: September 01, 2010, 11:55:28 PM »

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anthonydp
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« Reply #1 on: September 02, 2010, 09:46:52 AM »

sabi sa specs

http://www.fairchildsemi.com/ds/CD%2FCD4066BC.pdf

kailangan yung control signal ay equal to Vcc, meaning 5V (according to what you've posted).  try mo muna yung ganoon.  take note na yung ON resistance mo at 3.3V input signal and Vcc = 5V ay around 200ohms.
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your question appears to be an XY Problem.

why don't you just tell us exactly what you're trying to do?
studyante
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« Reply #2 on: September 08, 2010, 12:23:54 PM »

napagana ko na po siya pero ang problema naman ngayon..kahit po hindi nakaconnect yung control ko sa 5v, nakukuha parin nung output ko yung input ko tapos chineck ko yung pin para sa control mayroong 4v kahit hindi naman nakaconnect.. tapos po yung ibang mga pins ay mayroon ding square wave...yung vdd ko po ay 5v tapos yung Vss ay -5v..yung input ko po ay square wave na 5.4khz at from 0-3.3v yung amplitude
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mcglacy
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« Reply #3 on: September 08, 2010, 12:30:32 PM »

Can you post your circuit schematic para ma analyze natin?  Smiley
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studyante
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« Reply #4 on: September 09, 2010, 07:19:50 AM »

tinetest ko palang po siya..bali yung 4066 lang po gamit ko...
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gie62
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« Reply #5 on: September 09, 2010, 08:49:52 AM »

baka sira na yang 4066 na gamit mo...
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ege
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« Reply #6 on: September 10, 2010, 10:19:59 PM »

Check mo yung specs kung kailangan ng pull down/pull upd resistor sa mga control pins. Normally with logic circuits, unconnected pins tend to get HI.
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studyante
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« Reply #7 on: September 23, 2010, 07:59:01 AM »

sige po ittry ko Cheesy thanks po
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