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3X38FTR - OCTAL-FET (Fast Ethernet Transceiver) for 10Base-T/100Base-TX/FX

General Description

5 RMII Mode 5 SMII Mode 5 LED Control 5 Clocking 5 FX Mode 5 Single-Channel Detail Functions 7 Block Diagrams 8 Pin Information 10 Pin Diagram for RMII Mode 10 Pin Diagram for SMII Mode 11 Pin Maps 15 Pin Descriptions 16 Functional Description 27 Reduced Media Independent Interface (RMII)

Key Features

  • s Pseudo-ECL compatible input/output for 100BaseFX support (with fiber-optic signal detect). Compatible with IEEE 802.3u 100Base-FX standard. Reuses existing twisted-pair I/O pins for compatible fiber-optic transceiver pseudo-ECL (PECL) data:.
  • No additional data pins required.
  • Reuses existing 3X38 pins for fiber-optic signal detect (FOSD) inputs. 10 Mbits/s Transceiver s s Compatible with IEEE 802.3 10Base-T standard for category 3 unshielded twisted-pair (UTP) cable. Compa.

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Datasheet Details

Part number 3X38FTR
Manufacturer Agere Systems
File Size 869.49 KB
Description OCTAL-FET (Fast Ethernet Transceiver) for 10Base-T/100Base-TX/FX
Datasheet download datasheet 3X38FTR Datasheet

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Full PDF Text Transcription (Reference)

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Preliminary Data Sheet September 2000 3X38FTR 208-Pin SQFP OCTAL-FET (Fast Ethernet Transceiver) for 10Base-T/100Base-TX/FX Overview The 3X38FTR 208-Pin SQFP is an eight-channel, single-chip complete transceiver designed specifically for dual-speed 10Base-T, 100Base-TX, and 100Base-FX switches and repeaters. It supports simultaneous operation in three separate IEEE * standard modes: 10Base-T, 100Base-TX, and 100Base-FX. The 3X38 uses 0.25 µm low-power CMOS to achieve extremely low power dissipation and operates from a single 3.3 V power supply. Each channel implements the following: s s s s s s s Autopolarity detection and correction. Adjustable squelch level for extended line length capability (two levels). On-chip filtering eliminates the need for external filters.