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Home » NEWEST Products » New by Manufacturer » Micrel » KSZ9031 Gigabit Ethernet Transceivers - Micrel
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Micrel KSZ9031 Gigabit Ethernet Transceiver
Micrel KSZ9031MNX Gigabit Ethernet Transceiver

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Micrel KSZ9031 Gigabit Ethernet Transceivers

Micrel KSZ9031 Gigabit Ethernet Transceivers are completely integrated triple-speed (10Base-T/100Base-TX/1000Base-T) Ethernet physical layer transceivers for transmission and reception of data on standard CAT-5 unshielded twisted pair (UTP) cable. KSZ9031MNX offers the industry-standard GMII/MII (Gigabit Media Independent Interface/Media Independent Interface) for connection to GMII/MII MACs in Gigabit Ethernet processors and switches for data transfer at 1000Mbps or 10/100Mbps.

KSZ9031RNX provides the Reduced Gigabit Media Independent Interface (RGMII) for direct connection to RGMII MACs in Gigabit Ethernet processors and switches for data transfer at 10/100/1000Mbps. Micrel KSZ9031 devices reduce board cost and simplifies board layout by using on-chip termination resistors for the four differential pairs and by integrating an LDO controller to drive a low-cost MOSFET to supply the 1.2V core. This device offers diagnostic features to facilitate system bring-up and debugging in production testing and in product deployment.

Features
  • Single-chip 10/100/1000Mbps IEEE 802.3 compliant Ethernet transceiver
  • GMII/MII standard interface with 3.3V/2.5V/1.8V tolerant I/Os
  • Auto-negotiation to automatically select the highest linkup speed (10/100/1000Mbps) and duplex (half/full)
  • On-chip termination resistors for the differential pairs
  • On-chip LDO controller to support single 3.3V supply operation – requires only one external FET to generate 1.2V for the core
  • Jumbo frame support up to 16KB
  • 125MHz Reference Clock Output
  • Energy-detect power-down mode for reduced power consumption when the cable is not attached
  • Energy Efficient Ethernet (EEE) support with low-power idle (LPI) mode and clock stoppage for 100Base-TX/1000Base-T and transmit amplitude reduction with 10Base-Te option
Applications
  • Laser/Network Printer
  • Network Attached Storage (NAS)
  • Network Server
  • Broadband Gateway
  • Gigabit SOHO/SMB Router
  • IPTV
  • IP Set-top Box
  • Game Console
  • IP Camera
  • Triple-play (data, voice, video) Media Center
  • Media Converter
Functional Diagram
Functional Diagram
Block Diagram
Block Diagram
Features
  • Single-chip 10/100/1000Mbps IEEE 802.3 compliant Ethernet transceiver
  • RGMII timing supports on-chip delay according to RGMII Version 2.0, with programming options for external delay and making adjustments and corrections to TX and RX timing paths
  • RGMII with 3.3V/2.5V/1.8V tolerant I/Os
  • Auto-negotiation to automatically select the highest linkup speed (10/100/1000Mbps) and duplex (half/full)
  • On-chip termination resistors for the differential pairs
  • On-chip LDO controller to support single 3.3V supply operation – requires only one external FET to generate 1.2V for the core
  • Jumbo frame support up to 16KB
  • 125MHz Reference Clock Output
  • Energy-detect power-down mode for reduced power consumption when the cable is not attached
  • Energy Efficient Ethernet (EEE) support with low-power idle (LPI) mode and clock stoppage for 100Base-TX/1000Base-T and transmit amplitude reduction with 10Base-Te option
Applications
  • Laser/Network Printer
  • Network Attached Storage (NAS)
  • Network Server
  • Broadband Gateway
  • Gigabit SOHO/SMB Router
  • IPTV
  • IP Set-top Box
  • Game Console
  • IP Camera
  • Triple-play (data, voice, video) Media Center
  • Media Converter
Functional Diagram
Functional Diagram
Block Diagram
Block Diagram
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