MAX14950CTO+

Signal Buffers, Repeaters, Splitters Overview

The MAX14950CTO+ is a quad equalizer/redriver designed to improve PCI Express signal integrity. It provides programmable input equalization and redrive circuitry to compensate for board loss. The device supports PCIe Gen I (2.5GT/s), Gen II (5.0GT/s), and Gen III (8.0GT/s) data rates. It operates on a single +3.3V supply with a voltage range of 3.0V to 3.6V. Supply current ranges from 205mA to 410mA depending on configuration. The typical propagation delay is 160ps. Deterministic jitter is typically 10.5psP-P, and random jitter is typically 0.5psRMS at 8GT/s. Input equalization offers four levels: 5dB, 8dB, 12dB, and 16dB. Output deemphasis provides eight levels ranging from 0dB to 9dB. The component is housed in a 42-pin TQFN-EP package measuring 3.5mm x 9.0mm.

Signal Buffers, Repeaters, Splitters Feature Summary

• Programmable input equalization and output deemphasis/preshoot to compensate for circuit-board loss
• Electrical idle detection and receiver detection on each channel for transparent operation
• Optimized for PCIe Generation III (8.0GT/s) with backward compatibility for Gen II and Gen I
• On-chip 50Ω input/output terminations and ±5kV HBM protection on all pins

Signal Buffers, Repeaters, Splitters Applications

• Servers
• Storage systems
• Desktop computers and notebook PCs
• Communications switches

Signal Buffers, Repeaters, Splitters Procurement Notes

Verify the specific ordering suffix CTO against official documentation to confirm the operating temperature range and package variant. Confirm RoHS compliance status through manufacturer datasheets or certificates. Ensure the source document matches the exact part number to avoid discrepancies in electrical specifications or pin configurations.

Signal Buffers, Repeaters, Splitters Selection Notes

Select this component when designing PCIe links requiring signal regeneration over long traces or through connectors. Verify that the system power supply falls within the 3.0V to 3.6V range. Ensure layout guidelines for the TQFN-EP package are followed to manage thermal performance and ground connectivity effectively.

Signal Buffers, Repeaters, Splitters Part Context

The MAX14950 belongs to the Maxim Integrated PCIe equalizer family. It serves as a redriver to extend signal reach in high-speed serial interfaces. The device complements other PCIe components by mitigating attenuation and jitter accumulation in printed circuit boards and cables.

Signal Buffers, Repeaters, Splitters Replacement Considerations

The MAX14950 is pin-compatible with the MAX4950 PCIe Generation II Redriver/Equalizer. Verify that the target application does not require features specific to newer generations beyond the MAX14950's capabilities.