仅对英特尔可见 — GUID: mcn1413278241368
Ixiasoft
存储器输出时钟抖动规范
协议 | 参数 | 符号 | Non-SmartVID | SmartVID (–2V速度等级) | SmartVID (–3V速度等级) | 单位 | ||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Data Rate (Mbps) | Min | Max | Data Rate (Mbps) | Min | Max | Data Rate (Mbps) | Min | Max | ||||
DDR3 | Clock period jitter | tJIT(per) | 2,133 | –40 | 40 | 1,866 | –60 | 60 | 1,600 | –70 | 70 | ps |
Cycle-to-cycle period jitter | tJIT(cc) | 2,133 | –40 | 40 | 1,866 | –60 | 60 | 1,600 | –70 | 70 | ps | |
Duty cycle jitter | tJIT(duty) | 2,133 | –40 | 40 | 1,866 | –86 | 86 | 1,600 | –100 | 100 | ps | |
DDR4 | Clock period jitter | tJIT(per) | 2,400 | –40 | 40 | 1,866 | –54 | 54 | 1,600 | –63 | 63 | ps |
Cycle-to-cycle period jitter | tJIT(cc) | 2,400 | –40 | 40 | 1,866 | –54 | 54 | 1,600 | –63 | 63 | ps | |
Duty cycle jitter | tJIT(duty) | 2,400 | –40 | 40 | 1,866 | –86 | 86 | 1,600 | –100 | 100 | ps |