DP83220 - National Semiconductor

DP83220 CDL Twisted Pair FDDI Transceiver Device

The Copper Data Link (CDL) Transceiver is an integrated circuit designed to interface directly with the National Semiconductor FDDI Chip Set or other FDDI PHY silicon allowing low cost FDDI compatible data links over copper based media The DP83220 Transceiver with the proper compensation selected will allow links of up to 100 meters over both Shielded Twiste.

Features

Y Y Y Y Y Y Y Y Fully compatible with current FDDI PHY standard Fully compatible with the SDDI PMD specification Requires a single a 5V supply Isolated TX and RX power supplies for minimum noise coupling Allows use of Type 1 STP and Category 5 DTP cables No Transmit Clock required Loopback feature for board diagnostics Link Detect input provided Block Diagram Transmit Section TL F 11724
  – 1 Receive Section TL F 11724
  – 2 FIGURE 1 DP83220 Transceiver Block Diagram CDLTM CDDTM CRDTM and PLAYERTM are trademarks of National Semiconductor Corporation C1995 National Semiconductor Corporatio.