8546AG-01LFT

Overview

The Renesas Electronics Corporation 8546AG-01LFT is a low skew, high-performance 1-to-6 Crystal Oscillator-to-LVDS Fanout Buffer. It features selectable crystal oscillator inputs, differential CLK1/nCLK1 pairs accepting LVPECL, LVDS, LVHSTL, or HCSL levels, and single-ended LVCMOS/LVTTL inputs. The device provides six 3.3V or 2.5V LVDS outputs with a maximum frequency of 266MHz. Key electrical parameters include a maximum output skew of 55ps, part-to-part skew of 600ps, and propagation delay of 2.45ns. It operates in full 3.3V or 2.5V supply modes within an ambient temperature range of 0°C to 70°C.

Feature Summary

• Low skew performance with 55ps maximum output skew and 600ps maximum part-to-part skew.
• Versatile input compatibility including selectable crystal, differential (LVPECL/LVDS/LVHSTL/HCSL), and single-ended (LVCMOS/LVTTL) clock sources.
• Six LVDS outputs supporting both 3.3V and 2.5V supply modes.
• Internally synchronized output enable to eliminate runt pulses during asynchronous assertion/deassertion.

Applications

• Clock distribution systems requiring well-defined performance and repeatability.
• Applications demanding low phase noise and high-speed clock buffering up to 266MHz.
• Crystal oscillator to LVDS fanout buffering in data communication equipment.

Procurement Notes

Verify the specific suffix 'LFT' against manufacturer documentation to confirm tape-and-reel packaging and lead-free status. Confirm the operating temperature grade corresponds to the 0°C to 70°C commercial range. Ensure input signal levels match the supported standards (LVPECL, LVDS, LVHSTL, HCSL, LVCMOS, LVTTL) for the selected configuration.

Selection Notes

Select this component when a 1-to-6 fanout buffer with ultra-low skew is required for LVDS outputs. It is suitable for designs needing flexible input options from crystals or various differential/single-ended logic families. Verify that the system voltage aligns with the 3.3V or 2.5V operation modes and that the 266MHz maximum frequency meets the design requirements.

Part Context

This component belongs to the family of low skew clock drivers and buffers designed for precise timing applications. It serves as a bridge between source clocks (crystals or standard logic) and LVDS-based destination devices, ensuring signal integrity across multiple channels with minimal timing variation.

FAQ

What input signal levels are supported by the CLK1/nCLK1 pair?

The CLK1/nCLK1 differential pair accepts LVPECL, LVDS, LVHSTL, and HCSL input levels.

What is the maximum output frequency of the 8546AG-01LFT?

The maximum output frequency is 266MHz.

How does the device handle the output enable pin?

The output enable is internally synchronized to eliminate runt pulses on the outputs during asynchronous assertion or deassertion of the clock enable pin.