DM9163: 10/100 Mbit Fast Ethernet Physical Layer TX Single Chip Transceiver

The DM9163 is a physical layer, single-chip with industrial temperature standard, and low power transceiver for 100BASE-TX and 10BASE-T operations. On the media side, it provides a direct interface to either Unshielded Twisted Pair Category 5 Cable (UTP5) for 100BASE-TX Fast Ethernet, or UTP5/UTP3 Cable for 10BASE-T Ethernet. Through the Media Independent Interface (MII), the DM9163 connects to the Medium Access Control (MAC) layer, ensuring a high interoperability from different vendors.

Features

• LQFP-48 package
• 8kV Isolation Voltage
• 3.3V transformer at Center Tap
• Current consumption 90mA + 40mA (transformer)
• 50MHz RMII clock output
• Auto MDI-X
• 0.18 µm Process
• LED Status (Link/Activity, Speed, Full Duplex/Collision)
• Full-Duplex or Half-Duplex
• Compatible to IEEE802.3u
• MII and Reverse MII
• SPI EEPROM Interface
• Integrated 3.3V to 1.8V regulator
• Temperature Range: -40° to 85°C

DM9163 is an enhanced version of DM9162 focusing on industrial applications.

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Its main advantages are:

- 50MHz clock out at RMII applications which can save BOM cost and design efforts at the system designer
- 8kV isolation voltage
- 3.3V transformer at CT

DM9163 is backward compatible to DM9161A and DM9162.
It contains the entire physical layer functions of 100BASE-TX as defined by IEEE802.3u:

• Physical Coding Sublayer (PCS)
• Physical Medium Attachement (PMA)
• Twisted Pair Physical Medium Dependent Sublayer (TP-PMD)
• 10Base-TX Encoder/Decoder (ENC/DEC) 
• Twisted Pair Media Access Unit (TPMAU)

Furthermore, due to the built-in wave shaping filter, the DM9163 needs no external filter to transport signals to the media in 100BASE-TX or 10BASE-T Ethernet operation.