MAX4951CTP+

Signal Buffers, Repeaters, Splitters Overview

The MAX4951CTP+ is a dual-channel bidirectional re-driver designed for SATA I and SATA II signals, supporting data rates up to 6.0Gbps. It operates from a single +3.3V supply with typical current consumption of 90mA to 125mA. The device features channel-independent digital boost controls (BA, BB) to drive outputs over longer traces or meet eSATA specifications. Inputs and outputs are internally terminated with 50Ω resistors and require AC coupling. It provides Out-of-Band (OOB) signaling support via amplitude detection and includes an active-high enable input (EN). The component is housed in a 20-pin TQFN package with an exposed pad.

Signal Buffers, Repeaters, Splitters Feature Summary

• Supports SATA I (1.5Gbps), SATA II (3.0Gbps), and next-generation applications up to 6.0Gbps
• Features channel-independent digital boost controls to compensate for trace attenuation
• Includes internal 50Ω termination resistors on all inputs and outputs
• Provides full Out-of-Band (OOB) signal support through high-speed amplitude detection

Signal Buffers, Repeaters, Splitters Applications

• Servers
• Desktop Computers
• Notebook Computers
• Docking Stations
• Data Storage/Workstations

Signal Buffers, Repeaters, Splitters Procurement Notes

Verify the specific ordering suffix against official manufacturer documentation to confirm lead-free status and RoHS compliance. Confirm the package type matches the required board layout constraints. Ensure the operating temperature range aligns with the intended environmental conditions. Cross-reference the part number with the latest datasheet revision to validate pin configurations and electrical characteristics before finalizing procurement.

Signal Buffers, Repeaters, Splitters Selection Notes

Select this component when signal integrity restoration is required for SATA interfaces exceeding standard trace lengths. The dual-channel architecture allows independent configuration for host and device sides using the BA and BB control pins. Consider the 20-TQFN package dimensions for space-constrained designs. Verify that the system power supply remains within the specified 3.0V to 3.6V range for optimal performance.

Signal Buffers, Repeaters, Splitters Part Context

The MAX4951CTP+ belongs to the Maxim Integrated MAX4951 family of SATA bidirectional redrivers. This series is engineered to overcome board losses and maintain signal quality in high-speed serial ATA environments. The device integrates essential signal conditioning features into a compact form factor, facilitating easy integration into modern computing and storage systems requiring reliable data transmission.

Signal Buffers, Repeaters, Splitters Replacement Considerations

Consult official manufacturer substitution guides for verified alternatives. Ensure any replacement maintains compatibility with SATA I/II/III protocols and supports the required data rates. Verify that the substitute component offers equivalent electrical characteristics, pinout compatibility, and thermal performance.