8V31012

1-to-12, Differential HCSL Fanout Buffer 8V31012 DATA SHEET General Description The 8V31012 is a 1-to-12 Differential HCSL Fanout Buffer. The 8V31012 is designed to translate any differential signal levels to differential HCSL output levels. An external reference resistor is used to set the value of the current supplied to an external load/termination resistor. The load resistor value is chosen to equal the value of the characteristic line impedance of 50. The 8V31012 is characterized at an operating supply voltage of 3.3V. The differential HCSL outputs, accurate crossover voltage and duty cycle make the 8V31012 ideal for interfacing to PCI Express and FBDIMM applications. Features Twelve differential HCSL outputs Translates any differential input signal (LVPECL, LVHSTL, LVDS, HCSL) to HCSL levels without external bias networks Maximum output frequency: 250MHz Output skew: 265ps (typical) VOH: 850mV (maximum) Full 3.3V supply voltage Available in lead-free (RoHS 6) package -40°C to 85°C ambient operating temperature Block Diagram CLK nCLK Q6 nQ6 Q7 nQ7 Q8 nQ8 Q9 nQ9 Q10 nQ10 Q11 nQ11 IREF 8V31012 REVISION 1 10/21/15 Pin Assignment VDD nc nQ11 Q11 VDD nQ10 Q10 nc VDD nCLK CLK GND Q0 nQ0 Q0 nQ0 48 47 46 45 44 43 42 41 40 39 38 37 1 36 2 35 VDD nQ9 Q1 nQ1 VDD 3 Q1 4 34 Q9 33 GND nQ1 5 32 nQ8 Q2 GND 6 31 Q8 nQ2 Q2 7 8V31012 30 VDD Q3 nQ2 8 29 nQ7 nQ3 VDD 9 28 Q7 Q4 nQ4 Q5 Q3 nQ3 VDD 10 27 11 26 12 25 13 14 15 16 17 18 19 20 21 22 23 2...