Part Number: CD74HCT4046A Other Parts Discussed in Thread: CD74HC4046A , Hello,
I hope you are having a nice day,
We have tried to make a modulator - demodulator pair, like the one shown in document Application Report SLAA618 called "Implementation…
Part Number: CD74HCT7046A Other Parts Discussed in Thread: CD74HCT4046A , Hi E2E,
What is the difference between CD74HCT7046A and CD74HCT4046A? Which is the most suitable device to lock a 1 kHz square wave? Is there a PLL integrated circuit with a sinusoidal…
Part Number: CD74HCT4046A Hi,
I use PC2 of CD74HCT4046 as the phase detector, PC2Out output drives a VCTCXO after RC filtering.
According to the datasheet, PC2out is an edge-triggered JK flip-flop output. The positive and negative pulses are output…
I am trying to correctly calculate the values of R1, R2 and C1 for a 60Hz, and the loop filter corner, and which PC output is best for a 60Hz Fout, with an Fin range from 51Hz to 71Hz. Is there a software tool to assist, other than the BASIC program in…
Hi Met,
I would recommend referencing this old E2E thread if you haven't seen it already, it goes through some more details about how to implement a modulator/demodulator pair using CD74HC4046A: https://e2e.ti.com/support/logic-group/logic/f/logic-forum…
Other Parts Discussed in Thread: CD74HCT4046A Hi everyone,
I need a PLL with VCO (e.g. CD74HCT4046A) or quadrature demodulator chip to demodulate FM signal. However, if the deviation of the input FM signal is less than a predefined frequency threshold…
Part Number: CD74HCT4046A The current through R2, connected to pin 12 of the 74HCT4046, creates a frequency offset. Can I, instead, modulate the conductance of a current source of the appropriate impedance to frequency modulate the VCO?
Other Parts Discussed in Thread: CD74HCT4046A Hello.
I'm using the CD74HCT4046A as fm demodulation.
But I think it doesn't satisfy my requirement.
I'm trying to demodulate the signal(10MHz carrier freq, ±5MHz freq deviation and 500kHz modulation…
Emrys,
Thanks for welcoming me to the forum and for your response.
I read that the LV4046 was designed to be a pin compatible device to the older part as well, but I noticed a significant difference in the specifications for the value range for…
I know the connection you have listed are correct. I think you need to also tie the C1A and C1B to gnd.
I have attached an appnote on the HC4046 that may help you.
