Tips for VCO layout at 1M frequency

Status
Not open for further replies.
D

dabing

Junior Member level 3
Joined
Dec 14, 2006
Messages
31
Helped
3
Reputation
6
Reaction score
0
Trophy points
1,286
Visit site
Activity points
1,453
dear all
We should layout a vco. the frequence is 1M.
While layouting the vco. what sides should we take care?
The signal path, or power path, and any others.
 

VCO layout

In my option
the signal path shoud be taken care, for ring oscillators, the signal of each delay cell shoud match or be identical.
and the VCO shoud be put in a noiseless region.
The power path should be wide enouth for enouch current supplying and small voltage drop on small resistance.

Ryan
 

Re: VCO layout

Topology symmetry, Large current Metal width, Cap and MOSFET put, Noise isolation.
 

VCO layout

i think you should take care the match of the inverter chain
 

Re: VCO layout

usually,it is common to surround the VCO cells with a wide ring of decoupling capacitors, which can reduce the power supply ripple and also have better noise isolation.
 

Status
Not open for further replies.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…