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CX28331 PDF даташит

Спецификация CX28331 изготовлена ​​​​«Conexant» и имеет функцию, называемую «(CX28332 / CX28333) Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit».

Детали детали

Номер произв CX28331
Описание (CX28332 / CX28333) Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit
Производители Conexant
логотип Conexant логотип 

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CX28331 Даташит, Описание, Даташиты
Advance Information
This document contains information on a product under development. The parametric information
contains target parameters that are subject to change.
CX28331/CX28332/CX28333
Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit
The CX28333 is a three-channel, E3/DS3/STS-1 fully-integrated Line Interface Unit
(LIU). It is configured via external pins and does not need a microprocessor interface.
Each channel has an independent equalizer on the receive side requiring no user
configuration. Also, each channel has a programmable transmit pulse shaper that can
be set to ensure that the cross-connect pulse mask requirement is met for transmit
cable length up to 450 feet. The CX28332 is a dual-channel, and the CX28331 is a
single-channel LIU with performance identical to the CX28333.
The CX28333 gives the user new economies of scale in concentrator applications
where three DS3 or STS-1 channels are concentrated into a single STS-3 channel. By
including three independent transceivers on a chip, significant external components are
eliminated, with the exception of 1:1 coupling transformers, termination resistors, and
supply bypass capacitors.
NOTE: In this document, "i" is used to represent the number of channels:
i = 1 (CX28331), i = 2 (CX28332), and i = 3 (CX28333).
Functional Block Diagram
XOE
LBO
E3MODE
PDB
TPOS
TNEG
TCLK
TAIS
RLOOP
LLOOP
RPOS
RNEG
RCLK
RLOS
PDATA/
NDATA
ENCODER
TCLK
Pulse
Shaper
DATA
MUX
LINE
DRIVER
TX
Monitor
DECODER
PDATA
NDATA
Clock/
Data
DATCLK Recovery
P
N Receiver
ALOS
TLINEP
TLINEM/N
TMONP
TMONM
TXMON
TMONTST
REFCLK
RLINEP
RLINEM/N
REQH
LIU #1
LIU #2
LIU #3
Distinguishing Features
• Can be used as a data transceiver
over a maximum of 900 feet of Type
734/728 coaxial cable or equivalent
in an on-premise environment
• Programmable pulse filtering to meet
cross-connect pulse masks (ANSI
T1.102-1993)
• Meets jitter specifications of Bellcore
GR499, GR253, and TBR24 (with
external JAT).
• Large input dynamic range
• Alarms for coding violation and loss
of signal
• Full diagnostic loopback capability
• Uses a minimum of external
components
• Compatible with ITU-T G.703, G.823
• Independent power down mode per
channel
• Easily interfaced to the DS3/E3
Framer IC (CX28342/3/4/6/8 and
CN8330)
• Selectable B3ZS/HDB3
encoding/decoding
• Superior input receiver sensitivity
(< 25 mV)
• Transmit monitor inputs (CX2833i-3x
series only)
Physical Characteristics
• 80- and 100-pin ETQFP package
• Single 3.3 V power supply
• 1 W maximum power dissipation
(CX28333)
• –40 °C to +85 °C temperature range
• 5 V-tolerant pins
• TTL digital pins
Applications
• Digital Cross-Connect Systems
• Routers
• ATM Switches
• Channelized Line Aggregation Units
• Test Equipment
• Channel Service Units
• Multiplexers
NOTE(S): The TX Monitor is only used with the 100-pin CX2833i-3X.
Data Sheet
100985A
June 2, 2000









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CX28331 Даташит, Описание, Даташиты
CX28333EVM
NRZTX DATA and CLK in
CH1
NRZRX DATA and CLK out
F
R NRZTX DATA and CLK in
A
M CH2
E NRZRX DATA and CLK out
R
S NRZTX DATA and CLK in
I
D CH3
E NRZRX DATA and CLK out
Loss of Signal
Code Violation
CX28333
TX B3ZS/HDB3 analog out
CH1
RX B3ZS/HDB3 analog in
TX B3ZS/HDB3 analog out
CH2
RX B3ZS/HDB3 analog in
TX B3ZS/HDB3 analog out
CH3
L
I
N
E
S
I
D
E
RX B3ZS/HDB3 analog in
Clock Input
Control
100985_002
© 2000, Conexant Systems, Inc.
All Rights Reserved.
Information in this document is provided in connection with Conexant Systems, Inc. (“Conexant”) products. These materials are
provided by Conexant as a service to its customers and may be used for informational purposes only. Conexant assumes no
responsibility for errors or omissions in these materials. Conexant may make changes to specifications and product descriptions at
any time, without notice. Conexant makes no commitment to update the information and shall have no responsibility whatsoever for
conflicts or incompatibilities arising from future changes to its specifications and product descriptions.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document. Except as
provided in Conexant’s Terms and Conditions of Sale for such products, Conexant assumes no liability whatsoever.
THESE MATERIALS ARE PROVIDED “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, RELATING
TO SALE AND/OR USE OF CONEXANT PRODUCTS INCLUDING LIABILITY OR WARRANTIES RELATING TO FITNESS FOR A
PARTICULAR PURPOSE, CONSEQUENTIAL OR INCIDENTAL DAMAGES, MERCHANTABILITY, OR INFRINGEMENT OF ANY
PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. CONEXANT FURTHER DOES NOT WARRANT THE
ACCURACY OR COMPLETENESS OF THE INFORMATION, TEXT, GRAPHICS OR OTHER ITEMS CONTAINED WITHIN THESE
MATERIALS. CONEXANT SHALL NOT BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
DAMAGES, INCLUDING WITHOUT LIMITATION, LOST REVENUES OR LOST PROFITS, WHICH MAY RESULT FROM THE USE
OF THESE MATERIALS.
Conexant products are not intended for use in medical, lifesaving or life sustaining applications. Conexant customers using or selling
Conexant products for use in such applications do so at their own risk and agree to fully indemnify Conexant for any damages
resulting from such improper use or sale.
The following are trademarks of Conexant Systems, Inc.: Conexant™, the Conexant C symbol, and “What’s Next in Communications
Technologies”™. Product names or services listed in this publication are for identification purposes only, and may be trademarks of
third parties. Third-party brands and names are the property of their respective owners.
For additional disclaimer information, please consult Conexant’s Legal Information posted at www.conexant.com, which is
incorporated by reference.
Reader Response: Conexant strives to produce quality documentation and welcomes your feedback. Please send comments and
suggestions to [email protected]. For technical questions, contact your local Conexant sales office or field applications
engineer.
100985A
Conexant









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CX28331 Даташит, Описание, Даташиты
Ordering Information
Model Number
CX28331-1x
CX28332-1x
CX28333-1x
CX28331-3x
CX28332-3x
CX28333-3x
Package
80-Pin ETQFP
80-Pin ETQFP
80-Pin ETQFP
100-Pin ETQFP
100-Pin ETQFP
100-Pin ETQFP
Description
Single-channel LIU
Dual-channel LIU
Triple-channel LIU
Single channel with Transmit Monitoring
Dual channel with Transmit Monitoring
Triple channel with Transmit Monitoring
Operating
Temperature
40 °C to +85 °C
40 °C to +85 °C
40 °C to +85 °C
40 °C to +85 °C
40 °C to +85 °C
40 °C to +85 °C
Revision History
Revision
A
Level
Date
May 5, 2000
Initial Release
Description
100985A
Conexant










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Номер в каталогеОписаниеПроизводители
CX28331(CX28332 / CX28333) Single/Dual/Triple E3/DS3/STS-1 Line Interface UnitConexant
Conexant
CX28332(CX28331 - CX28333) Single/Dual/Triple E3/DS3/STS-1 Line Interface UnitConexant Systems
Conexant Systems
CX28333(CX28331 - CX28333) Single/Dual/Triple E3/DS3/STS-1 Line Interface UnitConexant Systems
Conexant Systems

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