78Q2132

Features:

1M8 Home LAN interface over POTS
HomePNA 1.1 compliant
Integrated HomePNA interface and line filters
Simultaneous Spectral Compatibility with Voice, Fax, ISDN, xDSL, Cable Modem with HomePNA
10BASE-T IEEE-802.3 compliant TX and RX functions requiring only a dual isolation transformer interface to the line
Integrated MII, GPSI and 10BASE-T ENDEC
Full duplex operation capable in 10BASE-T
Automatic polarity correction for 10BASE-T signal reception
Power-saving and power-down modes including transmitter disable
Operates with a single 3.3V or 5V supply
LINK, TX, RX, COL, 10, 1, FDX/SPD, PWR LED indicators
User programmable Interrupt pin
General Purpose I/O Interface
80-Lead or 64-Lead TQFP package


Pinout




Specifications

PARAMETER	RATING
DC Supply Voltage	7 VDC
Storage Temperature	-65 to 150 °C
Pin Voltage	-0.3 to (Vcc+0.3) VDC
Pin Current	± 100 mA

Description

The 78Q2132 is a 1/10 Ethernet transceiver. This dual speed transceiver interfaces to a 1Mbps Home LAN and a 10BASE-T network.  The Home LAN interface is fully Home Phoneline Networking Alliance (HomePNA) compliant extending Ethernet over POTS.  The HomePNA interface includes the pulse encoder and decoder plus transmit and receive line interface filters.  Only a telco transformer and external protection devices are required to complete the interface.  The 78Q2132 also integrates MII and General Purpose Serial Interface (GPSI) MAC interfaces. The 10BASE-T Ethernet channel includes Manchester ENDEC and transmitter with an on-chip pulse-shaper and a low-power line driver. The 10BASE-T transceiver interfaces of the 78Q2132 to Category-3 unshielded twisted pair (Cat-3 UTP) cabling.  The HomePNA port is connected to the line via a HomePNA compatible 1:1 transformer of the 78Q2132 having a series capacitor in the line side and the Ethernet port is connected to the line via 1:1 (Rx) and 1.414:1 (Tx) isolation transformers. No external filtering is required. Communication to the MAC is accomplished
through an IEEE-802.3 compliant media independent interface (MII) or GPSI. The 78Q2132 is designed for high performance and low power operation, and can
operate from a single 3.3 V or 5 V supply.