CN8223 Datasheet, PDF (22/161 Pages) Conexant Systems, Inc – ATM Transmitter/Receiver with UTOPIA Interface

1.0 Product Description
1.6 Line Interface Applications
CN8223
ATM Transmitter/Receiver with UTOPIA Interface
1.6 Line Interface Applications
With minimal glue logic, the CN8223 provides interfaces to STS-3c, STM-1,
DS3, E3, TAXI, DS1, or E1 equipment. Multiple line rates can be supported with
a single design if the line interface is on a daughter card. Figure 1-5 illustrates the
configuration for several line interfaces.
Figure 1-5. Line Interface Applications
SONET
Fiber
STS-3c, STM-1 Interface
Optical
Transceiver
Clock
Recover
CN8223
High-Speed
Serial Line
Interface
Copper
Line
DS3, E3 Interface
Line
Transformer
Line
Interface
Unit Chip
CN8223
Low-Speed
Serial Line
Interface
CN8223 Signal Names
TXCKI_HS+/–, TCLKO_HS+/–, TXOUT_HS+/–,
RXCKI_HS+/–, RXIN_HS+/–
TXCKI, TCLKO, TXPOS, TXNEG,
RXCKI, RXPOS, RXNEG, RXLOS
Fiber or
Copper
TAXI Interface
Optical or
Electrical
Interface
AMD
TAXI
Chipset
CN8223
External Framer
Parallel Interface
Copper
Line
DS1 or E1 Interface
Line
Transformer
Bt8360 or
Bt8510 or
Bt8370
CN8223
External Framer
Serial Interface
TXCKI, TCLKO, TXIN, TXOUT[8:0],
RXCKI, RXIN, TXOUT[8:0], RCV_HLD
TXCKI, TXIN, TXOUT[3],
RXCKI, RXIN[0,3,4]
1-12
Conexant
100046C