Single-Ended I/O Standards Specifications
                                                                
                                                                
                                                            
                                                                
                                                                
                                                                    Single-Ended SSTL, HSTL, and HSUL I/O Reference Voltage Specifications
                                                                
                                                                
                                                            
                                                                
                                                                
                                                                    Single-Ended SSTL, HSTL, and HSUL I/O Standards Signal Specifications
                                                                
                                                                
                                                            
                                                                
                                                                
                                                                    Differential SSTL I/O Standards Specifications
                                                                
                                                                
                                                            
                                                                
                                                                
                                                                    Differential HSTL and HSUL I/O Standards Specifications
                                                                
                                                                
                                                            
                                                                
                                                                
                                                                    Differential I/O Standards Specifications
                                                                
                                                                
                                                            
                                                        
                                                    
                                                
                                                
                                                    
                                                    
                                                        High-Speed I/O Specifications
                                                    
                                                    
                                                
                                                    
                                                    
                                                        DPA Lock Time Specifications
                                                    
                                                    
                                                
                                                    
                                                    
                                                        LVDS Soft-CDR/DPA Sinusoidal Jitter Tolerance Specifications
                                                    
                                                    
                                                
                                                    
                                                    
                                                        Memory Standards Supported by the Hard Memory Controller
                                                    
                                                    
                                                
                                                    
                                                    
                                                        DLL Range Specifications
                                                    
                                                    
                                                
                                                    
                                                    
                                                        DQS Logic Block Specifications
                                                    
                                                    
                                                
                                                    
                                                    
                                                        Memory Output Clock Jitter Specifications
                                                    
                                                    
                                                
                                                    
                                                    
                                                        OCT Calibration Block Specifications
                                                    
                                                    
                                                
                                            
                                        
                                    
                                    
                                        
                                        
                                            POR Specifications
                                        
                                        
                                    
                                        
                                        
                                            JTAG Configuration Timing
                                        
                                        
                                    
                                        
                                            FPP Configuration Timing
                                        
                                        
                                        
                                    
                                        
                                        
                                            AS Configuration Timing
                                        
                                        
                                    
                                        
                                        
                                            DCLK Frequency Specification in the AS Configuration Scheme
                                        
                                        
                                    
                                        
                                        
                                            PS Configuration Timing
                                        
                                        
                                    
                                        
                                        
                                            Initialization
                                        
                                        
                                    
                                        
                                        
                                            Configuration Files
                                        
                                        
                                    
                                        
                                        
                                            Minimum Configuration Time Estimation
                                        
                                        
                                    
                                        
                                        
                                            Remote System Upgrades
                                        
                                        
                                    
                                        
                                        
                                            User Watchdog Internal Circuitry Timing Specifications
                                        
                                        
                                    
                                
                            Fractional PLL Specifications
| Symbol | Parameter | Condition | Min | Typ | Max | Unit | 
|---|---|---|---|---|---|---|
| fIN | Input clock frequency | — | 30 | — | 800 49 | 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 | — | 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 | — | — | — | 50 | ps | 
| tARESET | Minimum pulse width on the pll_powerdown signal | — | 10 | — | — | ns | 
| tINCCJ 50 51 | Input clock cycle-to-cycle jitter | FREF ≥ 100 MHz | — | — | 0.13 | UI (p-p) | 
| FREF < 100 MHz | — | — | 650 | ps (p-p) | ||
| tOUTPJ 52 | Period jitter for clock output | FOUT ≥ 100 MHz | — | — | 600 | ps (p-p) | 
| FOUT < 100 MHz | — | — | 60 | mUI (p-p) | ||
| tOUTCCJ 52 | 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 | 
   Related Information
   
 
    
  
 
 
  49 This specification is limited by the I/O maximum frequency. The maximum achievable I/O frequency is different for each I/O standard and is depends on design and system specific factors. Ensure proper timing closure in your design and perform HSPICE/IBIS simulations based on your specific design and system setup to determine the maximum achievable frequency in your system. 
 
 
 
  50 A high input jitter directly affects the PLL output jitter. To have low PLL output clock jitter, you must provide a clean clock source with jitter < 120 ps. 
 
 
 
  51 FREF is fIN/N, specification applies when N = 1. 
 
 
 
  52 External memory interface clock output jitter specifications use a different measurement method, which are available in Memory Output Clock Jitter Specification for  Intel® Cyclone® 10 GX Devices table.