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What is DP83220?

This electronic component, produced by the manufacturer "National Semiconductor", performs the same function as "CDL Twisted Pair FDDI Transceiver Device".


DP83220 Datasheet PDF - National Semiconductor

Part Number DP83220
Description CDL Twisted Pair FDDI Transceiver Device
Manufacturers National Semiconductor 
Logo National Semiconductor Logo 


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ADVANCE INFORMATION
October 1992
DP83220
CDLTM Twisted Pair FDDI Transceiver Device
General Description
The Copper Data Link (CDL) Transceiver is an integrated
circuit designed to interface directly with the National Semi-
conductor FDDI Chip Set or other FDDI PHY silicon allow-
ing low cost FDDI compatible data links over copper based
media The DP83220 Transceiver with the proper compen-
sation 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 de-
signed 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 Engineer-
ing
Features
Y Fully compatible with current FDDI PHY standard
Y Fully compatible with the SDDI PMD specification
Y Requires a single a5V supply
Y Isolated TX and RX power supplies for minimum noise
coupling
Y Allows use of Type 1 STP and Category 5 DTP cables
Y No Transmit Clock required
Y Loopback feature for board diagnostics
Y Link Detect input provided
Block Diagram
Transmit Section
Receive Section
TL F 11724 – 1
FIGURE 1 DP83220 Transceiver Block Diagram
TL F 11724 – 2
CDLTM CDDTM CRDTM and PLAYERTM are trademarks of National Semiconductor Corporation
C1995 National Semiconductor Corporation TL F 11724
RRD-B30M105 Printed in U S A

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DP83220 equivalent
4 0 Electrical Characteristics (Continued)
FIGURE 4 ICC Diagram
TL F 11724 – 5
FIGURE 5 Signal Detect Threshold
TL F 11724 – 6
5


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