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Germany / General
Torsten Waaga
✆: +49 (0) 2129 - 376-201
✉: Send email

Austria / Switzerland
Karl Eder
✆: +43 (0) 7448 - 21643-11
✉: Send email


DM9111A: 10/100 Mbit Fast Ethernet Physical Layer TX/FX Single Chip Transceiver


DM9111A is the newest member of the Davicom Single PHY Transceiver family.
Its main advantages are:
- low cost due to 0,11µ process. Resale price at 10k pieces is 0,36 USD / piece
- Very low power consumption modes <165mW
- RMII in a small QFN-24 package
- 50MHz clock out at RMII applications which can save BOM cost and design efforts at the system designer
- IEEE802.3az
- 2.5V/1.8V IO

It contains the entire physical layer functions of 100BASE-TX as defined by IEEE802.3u:

  • Pysical 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 DM9111A needs no external filter to transport signals to the media in 100BASE-TX or 10BASE-T Ethernet operation.



No Description / Download Type Version Date Size
01 Davicom General Layout-Guide PDF 1.01 2011/05/05 719kB
02 Davicom Hardware Layout Guide PDF   2009/01/08 9,4M
03 Dacom Ethernet Design-In Guide PDF 1.00 2011/11/18 2,64M
04 Connecting 2 Davicom devices without transformers PDF   2007/12/11 76kB
05 Design hint Center-Tabs Transformer to PHY PDF   2011/02/02 305kB
06 Crystal Information PDF   2013/09/24 59kB
07 Programming-Reference-Flow-Chart PDF 1.00 2009/01/07 130kB

Part Specific:

11 DM9111A-DS-P01 PDF P01 2018/04/11 1941kB
12 Schematic Demoboard PDF 1.0 2018/02/23 59kB
13 DM916x-to-DM9163-Design-Differences PDF   2017/03/29 151kB
14 Davicom-PHY-Comparison PDF   2017/05/07 77lB

Technical Models and Drawings:

No Description / Download Type Version Date Size
41 DM9111A_Schematic DEMOBOARD ZIP/DSN 1.0 2018/02/23 42kB