Hi Emrys,
thanks for the quick reply. I must have read through the '297 datasheet a dozen times and I still haven't found anything about the absence of an oscillator. Actually, quite the contrary. This is from the second sentence in the description…
Hello Tom, and welcome to the forums!
Are you trying to directly control the VCO with a voltage or are you using the device as a PLL?
There are minor differences between '4046 devices - especially relating to the VCO section. What was stable on one…
Part Number: CD4046B Other Parts Discussed in Thread: UCC21225A , , CD4518B , TCA6424A , SN74LV4046A Hi team
My customer wants to know whether TI has the solution to multiply a 100Hz input square wave signal to 100kHz (or at least 10kHz) output ?…
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…
Hi Tahir,
Do you mean that the CD4046B has a different frequency band with the same resistor, or that you are using multiple different devices (for example, SN74HC4046, SN74LV4046A, etc.) and they have different frequency bands?
What are the new frequencies…
Hi Katherine,
Unfortunately, we don't have much data on this device. So I won't be able to get an equation for this part. We have to look at the graph section to figure out the VCO characteristics. I have attached a post below explaining the same for…
Hi AS,
The SN74LV4046A is the most recent version of the 'HC4046A parts and has improved linearity/temperature stability.
The temp stability is listed as 0.11 %/C and the linearity is listed as 0.4%.
Part Number: CD4046B Other Parts Discussed in Thread: TMS320F280025 , SN74LV4046A We want to multiply grid frequency 32 times to be fed into TMS320F280025 microcontroller. It is desired that PLL is capable of locking grid frequencies from 47 Hz up to…
Hi Shlomi,
I would only recommend the CD4046B if you need over 5V support (up to 18V logic). Otherwise I would recommend the SN74LV4046A. All of the "4046" function devices work the same way and are intended to be functionally compatible.
These logic…
Is it possible to use CD4046be for ultrasonic signal generation as well as to develop a resonant phase locked system?
I think this part will work for what you are trying to do, but the implementation will likely require prototyping and testing in the…
