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 can select a clock input from primary, secondary, or crystal sources, with primary and secondary sources supporting single-ended or fully differential inputs.
· The selected clock is distributed to 10 LVCMOS output drivers.
· It operates from a core supply of 3.3 V/2.5 V/1.8 V and an output supply of 3.3 V/2.5 V/1.8 V/1.5 V, with independent core and output supplies requiring no sequencing.

FEATURES

· Additive jitter performance of 50 fs RMS.
· Typical output skew between clock outputs is 30 ps.
· Level translation with core supply voltage of 3.3 V/2.5 V/1.8 V and output supply of 3.3 V/2.5 V/1.8 V/1.5 V for LVCMOS output drivers.
· Device inputs include primary, secondary, and crystal inputs, selectable via input select pins.
· Input clock receiver accepts LVPECL, LVDS, LVCMOS, SSTL, HCSL, and XTAL waveforms.
· Supports crystal frequencies from 8 MHz to 50 MHz, with crystal bypass mode supporting frequencies up to 250 MHz.
· Available in a 32-pin, 5mm x 5mm QFN package.

APPLICATIONS

· High-frequency clock and data distribution in low-jitter environments.
· Systems requiring precise clock synchronization and distribution.
· Applications needing level translation between different voltage domains.
· Designs utilizing crystal oscillators or external clock sources.