MAX14998, MAX4998

Two-Lane and Four-Lane DisplayPort Passive Switches with Separate AUX/HPD Control

Ultra-Low On-Capacitance and Return Loss to Support Data Rates Greater Than 2.7Gbps
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Status Explanations for product status codes

Active: In Production.

Description

The MAX4998/MAX14998 high-speed passive switches route DisplayPort™ between two possible destinations or vice versa in laptop or desktop PCs. The MAX4998/MAX14998 are intended to be used where ultra-high-speed performance and minimal input capacitance is required.

The MAX4998 has three double-pole/double-throw (DPDT) switches and one single-pole/double-throw (SPDT) switch. Two DPDT switches are for high-frequency switching, one DPDT switch is for AUX, and one SPDT switch is for HPD. The two high-frequency switches are selected by SEL1, and the AUX/HPD are selected by SEL2. This part is suitable for two-lane DisplayPort switching.

The MAX14998 has six double-pole/double-throw (DPDT) switches. Four DPDT switches are for high-frequency switching, and two DPDT switches are for AUX and HPD. The four high-frequency switches are selected by SEL1, and the AUX/HPD are selected by SEL2. This part is suitable for four-lane DisplayPort switching.

The MAX4998/MAX14998 are fully specified to operate from a single +3.3V (typ) power supply. The MAX4998 is available in a 3.5mm x 5.5mm, 28-pin TQFN package with exposed pad, and the MAX14998 is available in a 3.5mm x 9mm, 42-pin TQFN package with exposed pad. Both devices operate over the -40°C to +85°C extended temperature range.

Data Sheet

Download this datasheet in PDF formatDownload Rev 1 (PDF, 944kB)
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An evaluation board is available: MAX14998EVKIT

Key Features

  • Single 3.3V Power-Supply Voltage
  • 8.5GHz (typ) Bandwidth
  • Support 1.6/5.4Gbps DisplayPort Signals
    • Handles DisplayPort v1.1 Signals
    • Handles DisplayPort v1.2 Signals
  • Excellent Return Loss -13dB at 2.7GHz
  • Independent High Frequency: AUX Select
  • Designed for AC-Coupled Circuits
  • Pass Throughs Are Maintained
  • Low 850µA (max) Supply Current
  • Small Packages
    • 3.5mm x 5.5mm, 28-Pin TQFN Package with Exposed Pad
    • 3.5mm x 9mm, 42-Pin TQFN Package with Exposed Pad
  • Flow-Through Layout for Easy Board Layout
  • ESD Protection for All I/O Pins: Human Body Model (HBM) ±4kV
 

Applications/Uses

  • Desktop PCs
  • Notebook PCs
   

Diagram

MAX14998, MAX4998: Typical Operating Circuit
Typical Operating Circuit

More Information

New Product Press Release   2010-04-05 ]

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Information Index

Document Ref.: 19-5033 Rev 1; 2010-09-01
This page last modified: 2011-07-08