Other Parts Discussed in Thread: UCC44273, UCC27614, UCC5390, , LMG1020
Tool/software:
Need help to design frequency divider using D-type Flip Flop (I am not a digital guy)
Hello, I have a frequency divider board as a pre-drive board using D-type dual Flip Flop (SN74ACT74NSR) and MOSFET driver (EL7104CSZ), with either 27.12 MHz oscillator or using 27.12 MHz signal from a generator as input. This pre-drive board delivers two 13.56 MHz signals (4V pulse with adjustable pulse width ~ 20 nS) after dividing the input signal's frequency f into two out of phase signals @ f/2. The board is used for driving high power MOSFETs to produce several kilo-Watt level RF output power. See the schematic in below.
Board images:
Now I need to produce signals at higher frequencies: with input signal @ f=80 MHz ~ 120 MHz, two output f/2 signals cover from 40 MHz to 60 MHz. The above design with the board and component selection operating at 13.56 MHz no longer works. I need a new board design with new component selections.
sn74lvc2g74dcur is probably good to replace SN74ACT74NSR. Someone recommends this to me. What driver/amplification device do you recommend for me to replace EL7104?
I am wondering if TI has reference design using sn74lvc2g74dcur for frequency divider. Thanks a lot!
Freeman