Because of the Thanksgiving holiday in the U.S., TI E2E™ design support forum responses may be delayed from November 25 through December 2. Thank you for your patience.
Hi Team,
I noticed that the 4046 of Onsemi had a formula. I applied the formula and found that part of the results was correct, and the rest was outrageous.
For TI's CD74HC4046, I only see a few pictures in the specifications. What is the formula for calculating…
The parasitic capacitance from the breadboard could be making an impact, but since your wiring is fairly short I think the waveforms should be relatively clean. I wonder if some of the noise could be coming through your power rails. What kind of bypass…
Hi Met,
Would it be possible to attach a schematic of the CD74HC4046 or a block diagram of your test setup just to help me understand where the ripple is coming from?
It looks like in the " Implementation of FSK Modulation and Demodulation using CD74HC4046A…
Part Number: CD74HC4046A Hi all,
One customer use CD74HC4046 to make phase discrimination for two signals (1 hz). He wants to take advantage of the signal PC2out after filter as VCXO control signal. When PC2out disconnect to any devices, the phase discrimination…
Hey Rob,
Robert Sierk said: What do you mean prototype only?
I mean to say that there's no simulation model, so you must build a prototype to test your designs.
Robert Sierk said: I'm looking for a PLL that will work in the 400kHz range, with or w/o…
Hello,
The method to select the timing resistor and capacitor is just to follow the graph in the datasheet.
To get 4 kHz center frequency (highlighted above in red), you can select any resistor + capacitor combo that intersects with a 5V line. I think…
Part Number: CD74HC4046A Hi,
I need an LT spice simulation model of CD74HC4046 for Altium software. I want to simulate the output of CD74HC4046 in Altium software. Any hint or help is highly appreciated. Thanks
Hi Tom,
I am not sure on if that fluctuation is unexpected or if its just the behavior of that device. I also don't know anything about this HP modulation analyzer to know how much frequency fluctuation is occurring from your voltage plot.
If the …
Hi Emrys,
I understand that the SN74LV4046A is a newer device than the CD74HC4046.
So, as you say, I believed that the linear performance that can not be expressed in the specifications is good.
Does your information received this time indicate that…
