Q:Design a simple circuit based on combinational logic to double the
output frequency.
A:
______________
____ ____ ____ | | _ _ _ _
| | | | | | | | | | | | | | | |
_| |____| |____| |__ | | _| |_| |_| |_| |_
| |
------------------------------>| |-------------------->
| |
|______________|
|\ |\
| \ | \
____| \o_________| \o______
| | / | / |
| | / | / |
| |/ not |/ not |
| |
| | \\----.
| +----\\ \
| || )--------+
---+----------------------------------// /
//----'
XOR
matrixshan:
I believe ( please correct me if I am wrong ) there will be
XNOR gate if two NOT gates are being used i.e. effectively
XNORing the input and its replica. If XOR gate is used the
input signal and its inverted will be XORed.
|