IDT8T39S10I

Crystal or Differential to Differential Clock Fanout Buffer IDT8T39S10I DATASHEET General Description The IDT8T39S10I is a high-performance clock fanout buffer. The input clock can be selected from two differential inputs or one crystal input. The internal oscillator circuit is automatically disabled if the crystal input is not selected. The crystal pin can be driven by single-ended clock when crystal is bypassed.The selected signal is distributed to ten differential outputs which can be configured as LVPECL, LVDS or HSCL outputs. In addition, an LVCMOS output is provided. All outputs can be disabled into a high-impedance state. The device is designed for signal fanout of high-frequency, low phase-noise clock and data signal. The outputs are at a defined level when inputs are open circuit or tied to ground. It is designed to operate from a 3.3V or 2.5V core power supply, and either a 3.3V or 2.5V output operating supply. Features Two differential reference clock input pairs Differential input pairs can accept the following differential input levels: LVPECL, LVDS, HCSL Crystal Oscillator Interface Crystal input frequency range: 10MHz to 40MHz Maximum Output Frequency LVPECL - 2GHz LVDS - 2GHz HCSL - 250MHz LVCMOS - 250MHz Two banks, each has five differential output pairs that can be configured as LVPECL or LVDS or HCSL One single-ended reference output with synchronous enable to avoid clock glitch Output skew: (Bank A and Bank B at the same output level) 70...