NE83C92

Philips Semiconductors Product specification Low-power coaxial Ethernet transceiver NE83C92 DESCRIPTION The NE83C92 is a low power BiCMOS coaxial transceiver interface (CTI) for Ethernet (10base5) and Thin Ethernet (10base2) local area networks. The CTI is connected between the coaxial cable and the Data Terminal Equipment (DTE) and consists of a receiver, transmitter, receive-mode collision detector, heartbeat generator and jabber timer (see Block Diagram). The transmitter output connects directly to a doubly terminated 50Ω cable, while the receiver output, collision detector output and transmitter input are connected to the DTE through isolation transformers. Isolation between the CTI and the DTE is an IEEE 802.3 requirement that can be met on signal lines by using a set of pulse transformers. Power isolation for the CTI is achieved using DC-to-DC conversion through a power transformer. The part is fully pin compatible with the industry standard 8392, but has substantially lower current consumption, is fully compliant with the IEEE802.3 standard, and has additional features such as automatic selection between AUI and coaxial connections, and requires no external pull-down resistors for local integrated MAU application. The NE83C92 is manufactured on an advanced BiCMOS process and is available with PLCC package which make it ideally suited to lap-top personal computers or systems where low power consumption, limited board space and jumperless design is required. Refer to...