85311AMLF-IKR

Overview

The 85311AMLF-IKR is a dual differential-to-differential fanout buffer manufactured by Renesas Electronics Corporation. It translates standard differential input signals, including LVDS, LVPECL, LVHSTL, SSTL, and HCSL, into two banks of differential 2.5V or 3.3V ECL/LVPECL outputs. The device supports maximum output frequencies up to 700MHz with typical part-to-part skew of 270ps and propagation delay of 1.7ns. It operates within an ambient temperature range of -40°C to +85°C and utilizes a lead-free Small Outline Integrated Circuit (SOIC) package.

Feature Summary

• Dual differential outputs supporting selectable 2.5V or 3.3V LVPECL/ECL voltage levels
• High-speed performance with 700MHz maximum output frequency and low additive phase jitter (<0.13ps RMS)
• Flexible input compatibility accepting LVDS, LVPECL, LVHSTL, SSTL, and HCSL differential pairs
• Low skew characteristics with 25ps typical output skew for precise clock distribution

Applications

• Clock distribution networks requiring high repeatability and well-defined performance
• System architectures demanding translation between various differential logic families
• High-speed digital systems utilizing ECL or LVPECL output standards

Procurement Notes

Verify the obsolete status of this component through official Renesas channels before procurement planning. Confirm availability of alternative packages or next-generation replacements if current stock is limited. Ensure that the specific suffix 'IKR' matches the required temperature grade and packaging configuration for your design constraints.

Selection Notes

Select this component when designing systems that require driving multiple loads from a single differential source while maintaining signal integrity across different voltage domains. Consider the 270ps part-to-part skew specification for timing budget calculations in parallel data paths. Verify that the power supply requirements align with the 2.5V or 3.3V operating ranges specified for LVPECL or ECL modes respectively.

Part Context

This model belongs to the family of high-performance clock buffers designed for complex digital systems. It serves as a bridge between lower-voltage differential standards like LVDS and higher-speed ECL/LVPECL interfaces. The device is engineered to minimize jitter and skew, making it suitable for applications where timing precision is critical for system synchronization and data throughput.

Replacement Considerations

Consult Renesas documentation for migration guides from legacy clock buffer families. Identify equivalent devices within the current portfolio that offer similar pinouts and electrical specifications. Verify that any substitute maintains the required input/output voltage compatibility and skew performance metrics.