MAX14950 Quad-Channel PCI Express Equalizer/Redriver

The MAX14950 is a four-channel equalizer designed to improve PCI Express® (PCIe) signal integrity by providing programmable input equalization at its receiver and programmable redrive circuitry. Output circuitry re-establishes lost de-emphasis at the board and compensates for board losses. The device allows for optimal placement of critical PCIe components. The device is useful for stripline, microstrip printed circuits, and balanced 100Ω cables.

The device is designed for PCIe and features per-lane electrical idle and receiver detection. The technology optimizes data transfer rates for PCIe Gen3 (8.0GT/s) and Gen2 (5.0GT/s), while also handling GenI (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 operates over the 0°C to +70°C temperature range.

Key Features

Optimize the compatibility between Gen3 (8.0GT/s) and Gen2 (5.0GT/s) and Gen1 (2.5GT/s)

Receiving the test license is completely transparent and the software operates freely

Balanced permits up to 30 inches of FR4 placement

Compatible input/output return loss of PCIe Gen3 (8.0GT/s)

Electrical Idle Detection

Very low latency: 160ps (typical) propagation delay

Random jitter ≤1.5psRMS (max)

Deterministic jitter ≤10.5psP-P (typical)

Four levels of programmable input equalization

Eight-level programmable output emphasis

On-chip 50Ω input/output termination

+3.3 V single supply operation

±5kV Human Body Model (HBM) protection on all pins

Space saving: 3.5 x 9.0 mm TQFN package

PCIe Gen2 Redriver/Equalizer Pin-Compatible with MAX4950