PLL clock buffer with 1:8 fanout for low-skew distribution
The Cypress CY7B9911V-7JXC is a PLL-based zero-delay clock buffer from the RoboClock+ series, designed to regenerate and distribute a single LVTTL clock input to eight LVTTL outputs with minimal skew. It integrates a phase-locked loop that aligns the output edges to the input, effectively cancelling propagation delay through the device. This makes it a fit for clock trees in telecom line cards, server motherboards, and test equipment where multiple synchronous clock domains must maintain tight phase alignment.
110 MHz ceiling and 3.3 V supply — what they mean for the clock tree
The maximum operating frequency is 110 MHz. The supply range is 2.97 V to 3.63 V.
Commercial temperature range — indoor use only
Rated for 0°C to 70°C operating temperature, this part is suited for commercial and office environments — servers, switches, telecom central-office gear, and benchtop instruments. It is not qualified for industrial enclosures, automotive under-hood, or outdoor base stations where ambient temperatures fall below freezing or exceed 70°C. For extended temperature, look at the RoboClock+ industrial-grade variants if available.
Lifecycle and compliance
The CY7B9911V-7JXC carries an active lifecycle status and is ROHS3 compliant, meaning no restricted substances above the exemption thresholds.