8T49N203A-027NLGI8

Overview

The Renesas 8T49N203A-027NLGI8 is a FemtoClock NG Universal Frequency Translator IC manufactured by Renesas Electronics Corporation. It operates within a supply voltage range of 2.375V to 3.465V and supports an input frequency up to 25MHz. The device features a 3:2 input-to-output ratio with differential input and output capabilities. It utilizes HCSL, LVDS, LVHSTL, LVPECL, or crystal inputs to generate LVPECL outputs. Packaged in a 40-VFQFN with an exposed pad (6x6mm), it is designed for surface mount installation and functions reliably across an operating temperature range of -40°C to +85°C.

Feature Summary

• Universal frequency translation with 3:2 input-to-output ratio
• Supports multiple input formats including LVPECL, LVDS, HCSL, and crystals
• Low jitter performance via FemtoClock NG PLL technology
• Differential LVPECL outputs for high-speed signal integrity

Applications

• High-speed serial link clock generation
• Data converter clocking systems
• Telecommunications infrastructure timing
• Test and measurement equipment

Procurement Notes

This component is identified as obsolete and no longer manufactured by Renesas Electronics Corporation. Verification of current stock levels through authorized distributors is required before procurement planning. Alternative replacement part numbers should be evaluated for pin compatibility and electrical specifications to ensure system continuity.

Selection Notes

Select this model when a fixed 3:2 frequency translation ratio is required with LVPECL outputs. Ensure the design accommodates the 40-VFQFN package thermal requirements. Verify that the input source matches supported formats such as LVDS or LVPECL. Confirm that the 2.375V to 3.465V supply range aligns with the system power architecture.

Part Context

The 8T49N203A belongs to the FemtoClock NG family, which emphasizes low phase jitter performance. This specific variant provides universal frequency translation capabilities, distinguishing it from standard synthesizers by its ability to handle various input frequencies and ratios without requiring complex external feedback networks.

Replacement Considerations

Publicly documented substitutes include the 8T49N241 series variants such as 8T49N241-994NLGI, 8T49N241-998NLGI, and 8T49N241-999NLGI. These alternatives are offered by Renesas Electronics Corporation but require verification of specific order code configurations to match functional requirements.