5V41346PGGI

DATASHEET 4 OUTPUT PCIE GEN1-2-3 SYNTHESIZER IDT5V41346 Recommended Applications Features/Benefits 4 Output synthesizer for PCIe Gen1-2-3 20-pin TSSOP package small board footprint Spread-spectrum capable reduces EMI General Description Outputs can be terminated to LVDS can drive a wider variety of devices The IDT5V41346 is a PCIe Gen1/2/3 compliant Power down pin greater system power management spread-spectrum-capable clock generator. The device has 4 differential HCSL outputs and can be used in OE control pin greater system power management communication or embedded systems to substantially Spread% and frequency pin selection no software reduce electro-magnetic interference (EMI). The spread required to configure device amount and output frequency are selectable via select pins. Industrial temperature range available supports demanding embedded applications Output Features Key Specifications 4 - HCSL output pairs Cycle-to-cycle jitter <50 ps Output-to-output skew <50 ps Low phase noise: 12 kHz to 20 MHz <6ps with spread off PCIe Gen1 peak-to-peak phase jitter <86ps PCIe Gen2 phase jitter <3.0ps RMS PCIe Gen3 phase jitter <1.0ps RMS Block Diagram VDD PD OE 2 Spread Spread Spectrum/ 3 Spectrum Output SEL 2:0 clock Circuitry selection CLKOUTA X1 CLKOUTA 25 MHz Clock CLKOUTB crystal or Oscillator PLL Clock CLKOUTB clock Synthesis X2 CLKOUTC CLKOUTC Optional tuning crystal CLKOUTD capacitors CLKOUTD 2 Rr(IREF) GND IDT 4 OUTPUT PCIE GEN1-2-3 SYNTHESIZER 1 IDT5V41346 REV B 072414IDT5V41346 4 OUTPUT PCIE GEN1-2-3 SYNTHESIZER Pin Assignment 1 20 CLKA VDDXD S0 2 19 CLKA S1 3 18 CLKB S2 4 17 CLKB X1 5 16 GNDODA X2 6 15 VDDODA PD 7 14 CLKC OE 8 13 CLKC GNDXD 9 12 CLKD IREF 10 11 CLKD 20-pin (173 mil) TSSOP Spread Spectrum Selection Table S2 S1 S0 Spread% Spread Type Output Frequency 0 0 0 -0.5 Down 100 0 0 1 -1.0 Down 100 0 1 0 -1.5 Down 100 0 1 1 No Spread Not Applicable 100 1 0 0 -0.5 Down 200 1 0 1 -1.0 Down 200 1 1 0 -1.5 Down 200 1 1 1 No Spread Not Applicable 200 IDT 4 OUTPUT PCIE GEN1-2-3 SYNTHESIZER 2 IDT5V41346 REV B 072414