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CX28331

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, GR2...

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CX28331: 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 cr...

CX28331 Data Sheet

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Part Number:
CX28331
Supply Ability:
5000

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  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



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)


Application

• Digital Cross-Connect Systems
• Routers
• ATM Switches
• Channelized Line Aggregation Units
• Test Equipment
• Channel Service Units
• Multiplexers


Specifications

Symbol Parameter Min Max Unit
DVDDC/
RVDD/
TVDD/
VDD		 Power Supply Voltage 0.3 6 V
VI Voltage on Any Signal Pin 1.0 VGG + 0.3 V V
TST Storage Temperature 40 125 °C
TVSOL Vapor Phase Soldering
Temperature (1 min.)		 - 220 °C
JA Thermal Resistance (Still
air, socketed)		 - 40 °C/W
JA Thermal Resistance (Still
air, soldered)		 - 24 °C/W
Jc - - 7.40 °C/W
FIT Failures in time @ 89,000
device hours, temperature
of 55 °C, 0 failures.		 - 313 fits
NOTE(S):
1. Stresses above those listed as absolute maximum ratings may cause permanent damage
to the device. This is a stress rating only, and functional operation of the device at these or any other conditions beyond those indicated in the other sections of this document is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.



Description

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.




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