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MAX14954：Ruggedized Quad PCIe Redriver with Equalization and Extended Temperature Operation

Ruggedized Redriver/Equalizer Increases PCIe Signal Integrity in Gen 3.0 Applications

The MAX14954 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 re-establishes 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 MAX14954 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 -40°C to +85°C extended operating temperature range.

Key Features Fully Integrated for Ease of Use and Design Flexibility Optimized for PCIe Gen III (8.0GT/s), Gen II (5.0GT/s); Gen I (2.5 GT/s) Compatible Four Levels of Input Equalization Up to 16dB Eight Levels of Output Deemphasis Up to 9dB High Level of Performance to Overcome Noise in Lossy Channels Random Jitter: 0.5psRMS (typ) Deterministic Jitter: 10.5psP-P (typ) Equalization Permits Placement Up to 30” FR4 Robust Solution for Harsh Environments Industrial Temperature Rated: -40°C to + 85°C ±5kV Human Body Model (HBM) Protection on All Pins Housed in a Flow Thru (3.5mm x 9.5mm) TQFN Package for Resistance to Vibration/Shocks

MAX14954: Typical Operating Diagram Applications/Uses Carrier Boards Computer on Modules Industrial/Embedded PC Medical Equipment Rack Server Industrial PCs Test Equipment

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