8392
The 78Q8392L Ethernet Transceiver is a low power BiCMOS coax line transmitter/receiver for 10Base2/5 interfaces. The device includes analog transmit and receive buffers, a 10 MHz on-board oscillator, timing logic for jabber and heartbeat functions, output drivers and bandgap reference, in addition to a current reference and collision detector. This transceiver provides the interface between the single-ended coaxial cable signals and the Manchester-encoded differential logic signals. Primary functional blocks include the receiver, transmitter, collision detection and jabber timer. This IC may be used in either internal or external MAU environments.Features
Co-axial transceiver compliant with Ethernet II, IEEE 802.310Base5 and 10Base2
Integrated transceiver with minimal external component count and low power consumption
Integrated jabber timer function with externally selectable CED heartbeat
Power-on reset and test modes

