DATASHEET 4-OUTPUT FANOUT BUFFER FOR PCIE GEN1, 2, 3, 4 6V31024 Description Features/Benefits The 6V31024 is a 4-output lower-power differential buffer. Low power differential outputs for PCI-Express Each output has its own OE pin. It has a maximum Power-down mode when all OE are high operating frequency of 150MHz. 4 x 4 mm 20-VFQFPN package Recommended Application Key Specifications PCI-Express Gen1, 2, 3 and 4 fanout buffer Output cycle-cycle jitter < 15ps additive Output to Output skew: < 50ps Output Features 4 - low power differential output pairs Individual OE control of each output pair Power Groups Pin Number Description VDD GND 6,15 7,14 VDD IO for DIF(3:0) 1 2 3.3V Analog VDD & GND Block Diagram 4 OE (3:0) 4 DIF INT STOP DIF LPR(3:0) LOGIC DIF INC IDT 4-OUTPUT FANOUT BUFFER FOR PCIE GEN1, 2, 3, 4 1 6V31024 REV C 0815176V31024 4-OUTPUT FANOUT BUFFER FOR PCIE GEN1, 2, 3, 4 Pin Configuration 20 19 18 17 16 VDDA 1 15 VDD IO GNDA 2 14 GND OE3 3 13 OE1 6V31024 DIF3C LPR 4 12 DIF1T LPR DIF3T LPR 5 11 DIF1C LPR 67 89 10 20-VFQFPN Test Loads Low-Power push-pull HCSL Output test load Device L inches Rs Differential Zo 2pF 2pF Rs Single Ended Rs Impedance 5% Rs (Zo) tolerance 2% tolerance Notes 50 33 33.2 In general, 5% resistors 45 27 27.4 may be used. All values are 42.5 24 or 27 24.9 in ohms. L = 5 inches IDT 4-OUTPUT FANOUT BUFFER FOR PCIE GEN1, 2, 3, 4 2 6V31024 REV C 081517 VDD IO DIF INT GND DIF INC DIF2C LPR OE0 DIF2T LPR DIF0T LPR OE2 DIF0C LPR