re:vhdl code for a digital phase frequency detector

[amarnath]

frequency detector using vhdl

hello,can someone help me with some code for the above or explain the functionality of the circuit...

 

[amarnath]

vhdl phase detector

need some urgent help in writing vhdl code for the fairchild cd 4046 frequency detector...

 

[amarnath]

phase detector vhdl

please can someone give me and idea for writing vhdl code for a digital frequency detector...i need it for the case of a three state frequency detector

 

[drwho78]

4046 frequency detector

XAPP028 - Frequency/Phase Comparator for Phase-Locked Loops (12/96) XAPP Note

https://www.xilinx.com/bvdocs/appnotes/xapp028.pdf

 

[drwho78]

digital phase detector

Here is another one with code, you can convert to VHDL:

Phase Locked Loops (PLL) in High Speed Designs

**broken link removed**