DESCRIPTION

· The SiT92110 is a 10-output low-jitter clock fan-out buffer designed for high-frequency clock/data distribution.
· It features low-impedance LVCMOS outputs capable of driving 50 Ω series or parallel terminated transmission lines.
· The buffer supports clock input selection from primary, secondary, or crystal sources, with primary and secondary sources being single-ended or fully differential.
· It operates with independent core and output supply voltages of 3.3 V/2.5 V/1.8 V and 3.3 V/2.5 V/1.8 V/1.5 V, respectively, without requiring supply sequencing.

FEATURES

· Delivers additive jitter performance of 50 fs RMS.
· Typical output skew between clock outputs is 30 ps.
· Supports level translation with core supply voltages of 3.3 V/2.5 V/1.8 V and output supply voltages of 3.3 V/2.5 V/1.8 V/1.5 V.
· Inputs include primary, secondary, and crystal inputs, selectable via programming input select pins.
· Accepts LVPECL, LVDS, LVCMOS, SSTL, HCSL, and XTAL waveforms.
· Crystal frequencies supported from 8 MHz to 50 MHz, with overdrive capability up to 250 MHz in crystal bypass mode.
· Available in a 32-pin, 5mm x 5mm QFN package.

APPLICATIONS

· Ideal for low-jitter, high-frequency clock and data distribution systems.
· Suitable for applications requiring precise clock synchronization and distribution across multiple outputs.
· Used in systems with diverse clock input requirements, including LVPECL, LVDS, LVCMOS, SSTL, HCSL, and XTAL waveforms.
· Applicable in environments where crystal frequency flexibility and overdrive capability are essential.