1. Oct 2013Sharif University of Technology1 Simple Half-rate phase detector detects but has no reference! Optical Communications: Circuits, Systems and Devices

2. Oct 2013Sharif University of Technology2 Half-rate linear phase detector detects plus producing a reference! But do I believe it? Optical Communications: Circuits, Systems and Devices

3. Oct 2013Sharif University of Technology3 Optical Communications: Circuits, Systems and Devices

4. Oct 2013Sharif University of Technology4 Frequency detector shows that slow and fast clocks can have a bang bang performance using three flip-flops. Optical Communications: Circuits, Systems and Devices

5. Oct 2013Sharif University of Technology5 CDR sample architecture 1. Frequency Detector and Phase Detector both used. Optical Communications: Circuits, Systems and Devices

6. Oct 2013Sharif University of Technology6 CDR Sample Architecture 2. FD plus PD! Coarse plus fine VCO Control Optical Communications: Circuits, Systems and Devices

7. Oct 2013Sharif University of Technology7 CDR Sample Architecture 3. Using two coupled VCOs Optical Communications: Circuits, Systems and Devices

8. Oct 2013Sharif University of Technology8 CDR Sample Archtecture 4. Using External reference. Optical Communications: Circuits, Systems and Devices

9. Oct 2013Sharif University of Technology9 Questions ?