7.1 Typical Eye Diagram and Performance Curves
Device operating conditions: VCC = 3.3 V, temperature = 25°C, EQx, DEx, and OSx set to their default values (when not mentioned). Measurement equipment details:
- Generator (source) LeCroy PERT3
- Signal: 5 Gbps, 1000 mVpp, 3.5 dB de-emphasis
- Tj and Dj measurements based on CP0 (USB 3.0 compliance pattern) which is D0.0 or logical idle with SKP sequences removed
- Rj measurements based on CP1 or D10.2 symbol containing alternating 0s and 1s at Nyquist frequency
- Oscilloscope (sink) LeCroy 25-GHz real-time oscilloscope
- LeCroy QualiPHY software used to measure jitter and collect compliance eye diagrams