Delay interpolating voltage-controlled oscillator with linear transfer function
First Claim
Patent Images
1. A delay interpolating voltage controlled oscillator (VCO) comprising:
- input means for receiving differential control input;
non-linear current steering means coupled to said input means for generating a non-linear delay responsive to said differential control input;
output means coupled to said non-linear current steering means for providing a frequency signal responsive to said input and said current steering means;
said frequency signal being linearly related to said differential control input; and
wherein said non-linear current steering means include two differential transistor pairs.
2 Assignments
0 Petitions
Accused Products
Abstract
A delay interpolating voltage controlled oscillator (VCO) is provided. The delay interpolating VCO includes an input for receiving differential control input. A non-linear current steering circuit is coupled to the input for generating a non-linear delay responsive to the differential control input. A frequency signal is provided at a VCO output responsive to the differential control input and the non-linear delay with the frequency signal being linearly related to the differential control input.
23 Citations
9 Claims
-
1. A delay interpolating voltage controlled oscillator (VCO) comprising:
-
input means for receiving differential control input; non-linear current steering means coupled to said input means for generating a non-linear delay responsive to said differential control input; output means coupled to said non-linear current steering means for providing a frequency signal responsive to said input and said current steering means;
said frequency signal being linearly related to said differential control input; andwherein said non-linear current steering means include two differential transistor pairs. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. An inverter ring voltage controlled oscillator (VCO) comprising:
-
a ring of a plurality of differential inverter buffers;
each of said plurality of differential inverter buffers includinginput means for receiving differential control input; non-linear current steering means coupled to said input means for generating a non-linear delay responsive to said differential control input; and output means coupled to said non-linear current steering means for providing a frequency signal responsive to said input and said current steering means;
said frequency signal being linearly related to said differential control input. - View Dependent Claims (8, 9)
-
Specification