DP83222 - National Semiconductor

DP83222 CYCLONE Twisted Pair FDDI Stream Cipher Device

The DP83222 CYCLONE Stream Cipher Scrambler Descrambler Device is an integrated circuit designed to interface directly with the serial bit streams of a Twisted Pair FDDI PMD The DP83222 is designed to be fully compatible with the National Semiconductor FDDI Chip Sets including the DP83223 TWISTERTM (Twisted Pair Transceiver) The DP83222 requires a 125 MHz Tr.

Features

Y Y Y Y Y Y Y Y Y Enables 100 Mbps FDDI signalling over Category 5 Unshielded Twisted Pair (UTP) cable and Type 1 Shielded Twisted Pair (STP) Reduces EMI emissions over Twisted Pair media Compatible with ANSI X3T9 5 TP-PMD Standard Requires a single a 5V supply Transparent mode of operation Flexible NRZ and NRZI format options Advanced BiCMOS process Signal Detect and Clock Detect inputs provided for enhanced functionality Suitable for Fiber Optic PMD replacement applications Block Diagram TL F 11885
  – 1 FIGURE 1 DP83222 Block Diagram CYCLONETM CDDTM CDLTM PLAYERTM PLAYER a TM and TWIST.