SY56216RMG

Clock Buffers, Drivers Overview

The SY56216RMG is a fully differential, low-voltage CML dual-channel buffer manufactured by Microchip Technology. It supports clock signals up to 4.5GHz and data patterns up to 6.4Gbps. The device operates from a 2.5V ±5% core supply (VCC) and a 1.2V, 1.8V, or 2.5V ±5% output supply (VCCO). Key electrical parameters include a maximum propagation delay of 280ps, within-device skew under 20ps, and rise/fall times less than 80ps. It features input equalization for FR4 transmission lines and operates over the industrial temperature range of –40°C to +85°C.

Clock Buffers, Drivers Feature Summary

• Dual-channel CML buffer with DC-to-6.4Gbps throughput capability
• Integrated three-level input equalization for 9", 18", or 27" FR4 stripline
• Unique 3-pin input termination architecture accepting CML, LVPECL, and LVDS
• Guaranteed AC performance including <20ps within-device skew and <80ps rise/fall times

Clock Buffers, Drivers Applications

• SONET clock and data distribution
• Fiber Channel clock and data distribution
• Gigabit Ethernet clock and data distribution

Clock Buffers, Drivers Procurement Notes

Verify that the component matches the SY56216R family specifications, specifically the QFN-16 package and Industrial operating range. Confirm the lead finish is NiPdAu / Pb-Free as indicated in the ordering information. Ensure the source documentation aligns with the Micrel datasheet M9999-111810-A.

Clock Buffers, Drivers Selection Notes

Select this part when high-speed CML buffering is required for frequencies up to 4.5GHz. The choice of VCCO voltage (1.2V, 1.8V, or 2.5V) dictates the output termination scheme; 1.2V requires specific DC coupling, while 1.8V/2.5V allows flexible AC or DC termination. Ensure the PCB layout accommodates the exposed pad ground connection for thermal management.

Clock Buffers, Drivers Part Context

The SY56216RMG belongs to Micrel’s Precision Edge product line, designed for high-speed signal integrity. It is packaged in a 16-pin (3mm x 3mm) QFN. The 'RMG' suffix denotes the QFN-16 package type, Industrial temperature range, and NiPdAu/Pb-Free lead finish.

Clock Buffers, Drivers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.