842S104EGLFT

Overview

The 842S104EGLFT is a clock synthesizer and jitter cleaner from the Renesas 9FG104 series, designed for high-performance timing applications. It features four outputs with HCSL logic levels, supporting a maximum output frequency of 400 MHz. The device operates on a single 3.3V power supply (3.135 V to 3.465 V) and accepts crystal inputs up to 27.5 MHz. Packaged in a compact 28-TSSOP format, it functions within an industrial temperature range of 0°C to +70°C, drawing approximately 106 mA during operation.

Feature Summary

• Integrates a Phase-Locked Loop (PLL) circuit for precise frequency synthesis and jitter cleaning capabilities.
• Provides multiple differential output configurations suitable for demanding digital interface standards.
• Supports spread-spectrum clocking functionality to minimize electromagnetic interference (EMI).
• Operates reliably within standard industrial temperature ranges using a single voltage supply.

Applications

• PCI Express Gen 2 compliant systems requiring low-jitter clock generation.
• Intel CPU server platforms needing synchronized multi-rate clock signals.
• SATA interface circuits requiring stable frequency synthesis.

Procurement Notes

Verify the specific suffix 'EGILF' or 'EGLFT' against official Renesas documentation to confirm package type and tape-and-reel specifications. Ensure the ordering part number matches the exact pinout and electrical characteristics required by the design. Cross-reference datasheet revision dates to validate compliance with current RoHS and environmental standards before finalizing procurement.

Selection Notes

Select this component when designing systems that require a dedicated clock synthesizer for PCIe or SATA interfaces. It is appropriate for designs needing four HCSL outputs derived from a crystal input. Consider the 28-TSSOP package constraints and the 0°C to +70°C operating temperature range during thermal management planning. Verify that the 3.3V supply rail meets the specified voltage tolerance for optimal performance.

Part Context

This component belongs to the Renesas 9FG104 family of MultiRate FemtoClock devices. These integrated circuits are specialized for generating precise clock signals in high-speed data transmission environments. The family is widely utilized in enterprise computing infrastructure to ensure signal integrity across complex motherboard architectures.

Replacement Considerations

Official substitutes include the 9FG108EGLF for higher output counts or the 9FG104EGLFT variant depending on packaging requirements. Always consult the latest Renesas replacement guide to verify pin compatibility and electrical parameter alignment.