KSZ9031RNX Gigabit Ethernet Transceiver with RGMII Support Micrel Inc., is a leading global manufacturer Description The KSZ9031RNX is a completely integrated triple-speed (10Base-T/100Base-TX/1000Base-T) Ethernet physicallayer transceiver for transmission and reception of data on standard CAT-5 unshielded twisted pair (UTP) cable. Applications The 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. • • • • • • The KSZ9031RNX reduces 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. • • • The KSZ9031RNX offers diagnostic features to facilitate system bring-up and debugging in production testing and in product deployment. Parametric NAND tree support enables fault detection between KSZ9031 I/Os and the board. The LinkMD® TDR-based cable diagnostic identifies faulty copper cabling. Remote and local loopback functions verify analog and digital data paths. • GPON residential gateway SOHO media center Voice-over-Internet Protocol (VoIP) gateway Network attached storage Laser printers and projectors Wired/wireless Gigabit SOHO/SMB router media converter VPN/firewall-based SMB/SME router Gigabit Ethernet LAN on motherboard Integrated broadband CPE (ADSL/VDSL/ FTTH) router IPTV and IP set top boxes For more information, contact your local Micrel sales representative, or visit Micrel at: www.micrel.com The KSZ9031RNX is available in a 48-pin, lead-free QFN package. of IC solutions for the worldwide analog, Ethernet and high bandwidth markets. The Company’s advanced products mixed-signal, communication, clock management, Ethernet switch and physical layer transceiver ICs. Company customers include leading manufacturers of enterprise, consumer, industrial, automotive, mobile, and telecommunications, computer the-art wafer fabrication facilities are located in San Jose, CA with regional sales and support offices and advanced technology design centers situated throughout the Americas, Europe and Asia. In addition, the www.micrel.com PMA TX10/100/1000 CONFIGURATIONS PMA RX1000 PCS1000 PMA RX100 PCS100 PMA RX10 RGMII INTERFACE PCS10 AUTONEGOTIATION products. Corporation headquarters and state-of- Company maintains an extensive network of Block Diagram MEDIA INTERFACE and power semiconductors; high performance distributors and reps worldwide. CLOCK RESET include analog LED DRIVERS KSZ9031RNX - Gigabit Ethernet Transceiver with RGMII Support Key Features Benefits 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 EEE saves power by keeping the voltage on the Ethernet cable at approximately 0V during periods of no traffic. The traffic can resume without any packet loss within 30µs at 100BT and 16µs at 1000BT. Energy detect power-down mode for reduced power consumption when the cable is not attached EDPD mode is used to reduce the transceiver power consumption when the cable is unplugged. Wake-on-LAN (WOL) support with robust custom-packet detection WOL mechanism allows many devices in a system to be in sleep until a magic packet from the system awakens them, thus keeping the total systems power level at a reduced level. Automatic MDI/MDI-X crossover to detect and correct pair swap at all speeds of operation Auto-MDI/MDIX eliminates the need for cross-over cable, thus reduces installation costs. Easy to use. On-chip termination resistors for the differential pairs On-chip termination (eliminating eight external resistors) not only simplifies PCB design and reduces system BOM, but also improves overall signal integrity and EMI emission. On-chip LDO controller to support single 3.3V supply operation – requires only one external FET to generate 1.2V for the core Integration of a LDO controller permits a low cost MOSFET to supply the 1.2V core, which reduces board cost and simplifies board layout. LinkMD TDR-based cable diagnostic to identify faulty copper cabling Built-in LinkMD diagnostics helps identification of common cabling problems, including those not addressed by IEEE. It simplifies network deployment and reduces network downtime. 125MHz reference clock output 125MHz clock output to the MAC eliminates external 125MHz oscillator and lowers the BOM cost. MDC/MDIO MANAGEMENT KSZ9031RNX MAGNETICS RGMII 10/100/1000Mbps RGMII ETHERNET MAC ON-CHIP TERMINATION RESISTORS Functional Diagram RJ-45 CONNECTOR MEDIA TYPES 10Base-T 100Base-TX 1000Base-T LDO CONTROLLER VIN 3.3VA VOUT 1.2V (FOR CORE VOLTAGES) Contact Micrel, Inc. Location Address Telephone Fax Corporate HQ 2180 Fortune Drive San Jose, CA 95131 USA +1 408 944 0800 +1 408 944 0970 Western USA 2180 Fortune Drive San Jose, CA 95131 USA +1 408 944 0800 +1 408 944 0970 Central USA 2425 N. Central Express Way, Suite 351 Richardson, TX 75080 USA +1 972 393 2533 +1 972 393 2370 Eastern USA 93 Branch Street Medford, NJ 08055 USA +1 609 654 0078 +1 609 654 0989 Richardson, TX 75080 USA Latin America 2425 N. 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