M21050G-15

Overview

The M21050 is a high-performance duplex quad (octal) multi-rate clock and data recovery (CDR) array optimized for multi-lane telecom and datacom applications. Each CDR operates independently at bit rates between 1.0 Gbps to 3.2 Gbps, allowing maximum flexibility in system design. Signal conditioning features include adaptive input equalization and output pre-emphasis, allowing robust reception and transmission of signals to other devices up to 60 inches away.

Feature Summary

• Eight independent multi-rate CDRs running between 1.0 Gbps-3.2 Gbps in a duplex quad configuration
• Integrated adaptive equalization allows use of lower cost board materials with increased link performance
• Integrated pre-emphasis for driving trace lengths up to 60 inches
• AC-coupled input interface to CML and Infiniband

Applications

• Infiniband systems and modules
• Fibre Channel (1x, 2x, 10x) systems
• Gigabit Ethernet systems
• 10GBASE-CX4/LX4 XAUI systems & modules
• Backplane reach extension

Procurement Notes

Verify the package type as 72-terminal, 10mm x 10mm MLF. Confirm operating temperature range and voltage supply specifications from the official datasheet before procurement. Ensure compatibility with I2C-compatible interface or hardwired pins control requirements.

Selection Notes

Select based on required bit rate range (1.0 Gbps to 3.2 Gbps) and interface types (CML/Infiniband). Consider power consumption of 780 mW and the need for external reference clock for frequency acquisition. Evaluate if built-in pattern generator and receiver are needed for module and system testing.

Part Context

The M21050 is an octal CDR designed for multi-lane applications. It supports flexible control through an I2C-compatible interface or hardwired pins. The device includes a built-in frequency synthesizer for multi-rate operation with a single reference clock.

Replacement Considerations

No public confirmed substitute part numbers identified.