Quad PCI Express Equalizer/Redriver

Ultra-Small Equalizer/Redriver Improves PCIe Signal Integrity Across Systems for Gen 3.0 Applications

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The MAX14950 is a quad equalizer/redriver designed to improve PCI Express® (PCIe) signal integrity by providing programmable input equalization at its receiver and programmable redrive circuitry. The output circuitry reestablishes deemphasis lost on the board and compensates for circuit-board loss. The device permits optimal placement of key PCIe components. The device is useful with stripline, microstrip printed circuits, and balanced 100Ω cable.

The device is tailored for PCIe and features electrical idle and receiver detection on each channel. It is optimized for PCIe Gen III (8.0GT/s) and Gen II (5.0GT/s) data rates, while still handling Gen I (2.5GT/s).

The MAX14950 is available in a small, lead-free, 42-pin (3.5mm x 9.0mm) TQFN package for optimal layout and minimal space requirements. The device is specified over the 0°C to +70°C operating temperature range.
MAX14950: Typical Operating Circuit MAX14950: Typical Operating Circuit Enlarge+

Key Features

  • Optimized for Generation III (8.0GT/s) and Generation II (5.0GT/s) with Generation I (2.5GT/s) Compatibility
  • Receive Detection Permits Completely Transparent, Software-Free Operation
  • Equalization Permits Placement of Up to 30in FR4
  • PCIe Gen III (8.0GT/s)-Compliant Input/Output Return Loss
  • Electrical Idle Detection
  • Very Low Latency: 160ps (typ) Propagation Delay
  • Random Jitter ≤ 0.5psRMS (typ)
  • Deterministic Jitter ≤ 10.5psP-P (typ)
  • Four-Level-Programmable Input Equalization
  • Eight-Level-Programmable Output Emphasis
  • On-Chip 50Ω Input/Output Terminations
  • Single +3.3V Supply Operation
  • ±5kV Human Body Model (HBM) Protection On All Pins
  • Space-Saving: 3.5mm x 9.0mm TQFN Package
  • Pin Compatible with MAX4950 PCIe Generation II Redriver/Equalizer


  • Communications Switchers
  • Desktop Computers/Notebook PCs
  • Servers
  • Storage
Part NumberFunctionsInterfaceData Rate
ChannelsPackage/PinsOper. Temp.
maxtypSee Notes
MAX14950 Equalizer/Re-DriverPCIe80003.32624
0 to +70$13.08 @1k
See All Repeaters and Buffers (SAS, SATA, PCIe, USB) (13)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

MAX14950EVKIT: Evaluation Kit for the MAX14950

Quality and Environmental Data

Product Reliability Reports: MAX14950.pdf 
Lead-Free Package Tin (Sn) Whisker Reports
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

Quality Management System >
Environmental Management System >


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