ML4658

November 1998 ML4658 10BASE-T Transceiver GENERAL DESCRIPTION The ML4658 10BASE-T Transceiver is a single chip cable line driver/receiver that provides all of the functionality required to implement both an internal and external IEEE 802.3 10BASE-T MAU. This part offers a standard IEEE 802.3 AU interface that allows it to directly connect to industry standard manchester encoder/decoder chips or to an AUI cable. The ML4658 requires a minimal number of external components, and is compliant to the IEEE 802.3 10BASE-T standard. The differential current driven transmitter offers superior performance because of its highly symetrical switching. This results in low RFI noise and low jitter. The Transceiver easily interfaces to 100Ω unshielded twisted pair cable, 150Ω shielded twisted pair cable, or a range of other characteristic impedances by simply changing one external resistor. Jabber, Link Test, and SQE Test are fully integrated onto the chip with enable/disable options. A polarity detection status pin, which can drive an LED, is provided for receive data, and the ML4658 offers automatic polarity correction. FEATURES s s s s s s s s s s Complete implementation of IEEE 802.3 10BASE-T Medium Attachment Unit (MAU) Incorporates an AU interface for use in an external MAU or internal MAU Single 5V supply ±10% No crystal or clock input Current Driven Output for low RFI noise and low jitter Capable of driving 100Ω unshielded twisted pair cable or 150Ω shielded twisted pair cable Pola...