Microchip Technology KSZ9031 Gigabit Ethernet Transceivers

Microchip Technology 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. Microchip Technology KSZ9031 devices reduce board cost and simplify 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

KSZ9031MNX 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

KSZ9031RNX 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

KSZ9031MNX 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

KSZ9031RNX 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