仅对英特尔可见 — GUID: mcn1413182194645
Ixiasoft
小数分频PLL规范
符号 | 参数 | 条件 | 最小值 | 典型值 | 最大值 | 单位 |
---|---|---|---|---|---|---|
fIN | Input clock frequency | — | 30 | — | 800 58 | MHz |
fINPFD | Input clock frequency to the phase frequency detector (PFD) | — | 30 | — | 700 | MHz |
fCASC_INPFD | Input clock frequency to the PFD of destination cascade PLL | — | 30 | — | 60 | MHz |
fVCO | PLL voltage-controlled oscillator (VCO) operating range | Integer | 6 | — | 14.025 | GHz |
Fractional | 6 | — | 12.5 | GHz | ||
tEINDUTY | Input clock duty cycle | — | 45 | — | 55 | % |
fOUT | Output frequency for internal global or regional clock | — | — | — | 644 | MHz |
fDYCONFIGCLK | Dynamic configuration clock for reconfig_clk | — | — | — | 100 | MHz |
tLOCK | Time required to lock from end-of-device configuration or deassertion of pll_powerdown | — | — | — | 1 | ms |
tDLOCK | Time required to lock dynamically (after switchover or reconfiguring any non-post-scale counters/delays) | — | — | — | 1 | ms |
fCLBW | PLL closed-loop bandwidth | — | 0.3 | — | 4 | MHz |
tPLL_PSERR | Accuracy of PLL phase shift | Non-SmartVID | — | — | 50 | ps |
SmartVID | — | — | 75 | ps | ||
tARESET | Minimum pulse width on the pll_powerdown signal | — | 10 | — | — | ns |
tINCCJ 59 60 | Input clock cycle-to-cycle jitter | FREF ≥ 100 MHz | — | — | 0.13 | UI (p-p) |
FREF < 100 MHz | — | — | 650 | ps (p-p) | ||
tOUTPJ 61 | Period jitter for clock output | FOUT ≥ 100 MHz | — | — | 600 | ps (p-p) |
FOUT < 100 MHz | — | — | 60 | mUI (p-p) | ||
tOUTCCJ 61 | Cycle-to-cycle jitter for clock output | FOUT ≥ 100 MHz | — | — | 600 | ps (p-p) |
FOUT < 100 MHz | — | — | 60 | mUI (p-p) | ||
dKBIT | Bit number of Delta Sigma Modulator (DSM) | — | — | 32 | — | bit |
相关信息
58 此规范受I/O最大频率限制。对于每种I/O标准,可达到的最大I/O频率是不同的,这取决于设计和系统的特定因素。要确保您设计中的时序收敛是正确的,并且要基于您的特定设计和系统设置来执行HSPICE/IBIS仿真,以决定您系统中可达到的最大频率。
59 高输入抖动直接影响PLL输出抖动。要达到低PLL输出时钟抖动,就必须提供一个低于120 ps的干净时钟源。
60 FREF等于fIN/N,当N = 1时应用规范。
61 外部存储器接口时钟输出抖动规范使用一个不同的测量方法,在 Arria® 10器件的存储器输出时钟抖动规范表中可以找到。