Product Summary

The 78Q2123 and 78Q2133, MicroPHYsmallest10BASE-T/100BASE-rs in the market. They include integratedMII, ENDECs, scrambler/descrambler, dual-speedclock recovery, and full-featured auto-negotiationfunctions. The transmitter includes an on-chip pulse-shaper and a low-power line driver. The receiver hasan adaptive equalizer and a baseline restorationcircuit required for accurate clock and data recovery.The transceiver interfaces to Category-5 unshieldedtwisted pair (Cat-5 UTP) cabling for 100BASE-TXapplications, and Category-3 unshielded twisted pair(Cat-3 UTP) for 10BASE-T applications. The MDI isconnected to the line media via dual 1:1 isolationtransformers. No external filter is required. Interfaceto the MAC is accomplished through an IEEE-802.3compliant Media Independent Interface (MII).78Q2123/78Q2133areintendedembedded Ethernet market, tailored specifically to theneeds of game consoles, broadband modems,printers, set top boxes and audio/visual equipment. Itis designed for low-power consumption and operatesfrom a single 3.3V supply. The 78Q2123 is rated forcommercial temperature range and the 78Q2133 israted for industrial temperature range.

Parametrics

Specifications of 78Q8430-100CGT/F
No. Of Ports 2 Ethernet Type IEEE 802.3x, IEEE 802.3u, IEEE 802.3-2000
Ic Interface Type Host Bus, JTAG Supply Voltage Range 0V To 3.3V
Operating Temperature Range 0?°C To +70?°C Lead Free Status / RoHS Status Lead free / RoHS Compliant

Features

FEATURESTM?, are theSmallest 10/100 PHY availableFastEthernet?10BASE-T/100BASE-TX IEEE-802.3 compliant TX and RX functions requiring a dual 1:1 isolation transformer interface to the line ? Integrated MII, 10BASE-T/100BASE-TX ENDEC, 100BASE-TX scrambler/descrambler, and full- featured auto-negotiation function ? Full duplex operation capable ? Automatic MDI/MDI-X cross over correction ? Register-programmable transmit amplitude

Diagrams