How to design Symmetrical Type Load VCO(Maneatis Dealy cell)

[sandip_micro]

maneatis delay cell

If someone is having any PDF on how to design the Symmetrical Type Load VCO(Maneatis Dealy cell),please send me?How to decide the W/L of Delay cell and Bias Circuits?

 

[Btrend]

maneatis cell

firstly, u should know the tuning range of ur VCO, it depend on ur application.
because the bias current is directly related to the frequency of VCO.
then there are some ratio between VCO, CP & Bias generator.

 

[sandip_micro]

maneatis vco

Ihave 1 PDF from Waterloo Uni which explains the design procedure of Slow slewing Saturated Delay Cell including biasing and Tunning ckt.If somebody having any PDF,AN or tutorial on Symmetrical type load Delay Cell ,please send me.The link is:
**broken link removed**
Its a nice link which explains the design procedure of SCL Delay Cell.