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78Q2123R/F

Ethernet Controller, MicroPHY, IEEE 802.3, 3 V, 3.6 V, QFN, 32 Pins

MAXIM INTEGRATED / ANALOG DEVICES 78Q2123R/F
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Manufacturer Part No:
78Q2123R/F
Order Code:
2517211
Technical Datasheet:
78Q2123R/F   Datasheet
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Product Overview

The 78Q2123R/F is a MicroPHY 10BASE-T/100BASE-TX fast Ethernet transceiver in 32 pin QFN package. This device provides IEEE 802.3 media independent interface (MII) to the system media controller, it operates with 3.3V supply requirements and eliminates the need for 1.8V regulators or additional voltage conversion capacitors. The 78Q2123 device includes an integrated MII, ENDECs, scrambler/descrambler, dual-speed clock recovery and auto-negotiation functions. The transmitter includes an on-chip pulse shaper and a low-power line driver. The receiver has an adaptive equalizer and a baseline restoration circuit required for accurate clock and data recovery. The transceiver interfaces to Category-5 unshielded twisted pair (Cat-5 UTP) cabling for 100BASE-TX and Category-3 unshielded twisted pair (Cat-3 UTP) for 10BASE-T applications. It is designed to meet the growing demands of non-traditional networked applications such as game consoles, set-top boxes and digital TVs.
  • Supply voltage range is 3V to 3.6V
  • Operating temperature range from 0°C to 70°C
  • Designed for low power consumption and operates with single supply
  • Fully integrated 802.3µ fast Ethernet transceiver
  • Full duplex operation
  • Automatic MDI/MDI-X cross over correction
  • Register programmable transmit amplitude
  • Automatic polarity correction during auto-negotiation and 10BASE-T signal reception
  • Power saving and power-down mode including transmitter disable
  • 2 programmable LED indicators (link and activity by default), user programmable interrupt pin

Applications

Communications & Networking, Multimedia, Imaging, Video & Vision, Portable Devices, Consumer Electronics

Product Information


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Technical Documents (1)

CAD Downloads

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CAD Models - Notice
CAD Models and drawings are provided to you on a revocable limited licence for your internal use only but remain the property of the manufacturer who retain all intellectual property rights and ownership. They are provided to assist you in decision making and as design guide but are not guaranteed to be error free, accurate or up to date and is not intended to be taken as advice.
Use of these CAD models and other options provided are downloaded and used entirely at your own risk and by continuing you confirm acceptance of the above.

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