MAX14982

All-In-One Ruggedized 5GT/s 2:1/1:2 PCIe Mux and Redriver with Equalization

Simple, Robust Way to Switch and Redrive PCIe Gen II

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Overview

Fully Integrated for Ease of Use and Design Flexibility
- Capable of Switching Between Multiple Hosts and Sinks While Overcoming Board Losses
- Optimized for PCIe Gen II (5.0GT/s); Gen I (2.5GT/s) Compatible
- Three Levels of Independent Programmable Input Equalization and Output Deemphasis Up to 6dB
High Level of Performance to Overcome Noise in Lossy Channels
- Random Jitter: 0.5ps_RMS (typ)
- Deterministic Jitter: 20ps_P-P (typ)
- Equalization Permits Placement Up to 30in FR4
Robust Solution for Harsh Environments
- Industrial Temperature Rated: -40°C to +85°C
- ±2.5kV Human Body Model (HBM) Protection on All Pins
- Housed in a Flow-Through (3.5mm x 9.5mm) TQFN Package for Resistance to Vibrations/Shocks

The MAX14982 integrates MUX and redriver functionalities, offering an all-in-one solution capable of switching between multiple hosts or sinks and overcoming circuit-board losses. The solution is ideal for switching and redriving high-speed PCIe^® 5.0GT/s (Gigatransfers per second) signals and operates from a single +3.3V supply.

The IC features bidirectional redrivers with built-in independent programmable equalization, output preemphasis, and boost that overcome transmission line noise while preserving signal integrity at the receiver.

The MAX14982 utilizes advanced power-saving techniques where power consumption is reduced by entering standby mode when no drive is connected. The device also features flow-through pin outs to simplify routing and increase layout flexibility.

The MAX14982 is available in a space-saving, 42-pin 3.5mm x 9mm, TQFN package optimal reducing layout complexity as compared to stand-alone mux and redriver solutions. The MAX14982 is specified over the -40°C to +85°C industrial operating temperature range.

Applications