i look for 4046

N

nkn

Member

• Nov 3, 2012

• #1

i look for simple test circut for test cmos4046, thanks for help

 

Grossel

Well-Known Member

• Nov 3, 2012

• #2

Will this sheet help you?
https://www.electro-tech-online.com/custompdfs/2012/11/AN1410-DPDF.pdf

 

ronsimpson

Well-Known Member

Most Helpful Member

• Nov 3, 2012

• #3

The 74hc4046 is a 5 volt part. Also HCT, LV, VHC. There were many other versions.
The MC14046 and CD4046 will work up to 12V and 15 max. also HE4046
There are other versions.

For testing: the oscillator will work with two resistors and a capacitor. That is easy to test.
There are 3 phase comparators. Not easy to test.
The source follower should be easy to test.
How much testing do you need? It you are only using compareII then only test it and not compareI

 

chemelec

Well-Known Member

• Nov 3, 2012

• #4

Best Test: is Just replace it with a new one and Compare results in the units operation.
The 4046 is Quite Inexpensive.

 

N

nkn

Member

• Nov 4, 2012

• #5

yes , i look only comparell then only in and not

 

chemelec

Well-Known Member

• Nov 4, 2012

• #6

I would send you one for free, But the Shipping cost is a bit too much.

 

N

nkn

Member

• Nov 5, 2012

• #7

TO chemelec : only practical circuit if possible.
thanks for help

 

ccurtis

Well-Known Member

• Nov 5, 2012

• #8

The data sheet for a device often shows a test circuit suitable for testing it. I know this to be the case with the CD4046 device. The 4046 includes all but a few components necessary to build a complete PLL. Testing would involve building that PLL and seeing to it that (among other things) the output frequency follows the reference frequency over a certain range using the phase detector(s) of interest.

 

Last edited: Nov 5, 2012