DP83220

www.DataSheet4U.com DP83220 CDL Twisted Pair FDDI Transceiver Device ADVANCE INFORMATION October 1992 DP83220 CDL TM Twisted Pair FDDI Transceiver Device General Description 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 Twisted Pair (STP) and Datagrade unshielded Twisted Pair (DTP) CDL surpasses a Bit Error Rate (BER) of k1 c 10b12 over both STP and DTP The CDL is designed to meet the SDDI specification for FDDI transmission across Type 1 STP cable when used in conjunction with the appropriate transformer filter module from Pulse Engineering 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 Corporation TL F 11724 RRD-B30M105 Prin...