XRT7296

DS3/STS-1/E3 Integrated Line Transmitter
Data Sheets OBS (Obsolete)

Overview

# of Channels 1
Data Rate(s) DS3, E3, STS-1
Clk Rec No
SH/LH n/a
Temperature Range (°C) Ind.
Op Pwr Sup/Max Cur 5V ±5%, 133mA
Package SOJ-28, PDIP-28
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The XRT7296 is a fully integrated PCM Line Driver IC intended for DS3 (44.736Mbps) or E3(34.368Mbps) applications. It can also be used for transmitting SONET STS-1 (51.84Mbps) signals over coaxial cable. The IC is designed to complement either XRT7295 DS3/SONET STS-1 or XRT7295E E3 Integrated Line Receivers. The XRT7296 converts input clock and dual-rail unipolar data into AMI pulses according to AT&T Technical Advisory No. 34 or CCITT G.703 recommendations.

The device provides B3ZS (DS3) or HDB3 (E3) encoding functions for data to be transmitted to the line. A complimentary decoder circuit is also included in the chip for decoding received signals from an external line receiver. Both encoder and decoder functions can be disabled independently through external control pins. In the receive direction, coding errors and bipolar violations are detected and flagged at an output pin.

On-chip pulse shaper circuitry eliminates normally required external components for line equalization to meet the cross-connect template. For system level trouble-shooting and testing, both local and remote loop-backs are possible with the built-in loop-back circuit.

The XRT7296 is manufactured using BiCMOS technology and is packaged in a 28-pin PDIP or SOJ packages. The device requires a single 5V power supply and consumes a maximum power of 700mW. (Line current feed + device dissipation).

  • Fully Integrated Transmit Interface for DS3/E3/STS-1
  • Integrated Pulse Shaping Circuit
  • Compliance with Compatibility Bulletin 119, CCITT Recommendations G.703 and G.824, Bellcore TR-NWT-000499, ANSI T1.404
  • Built-in Encoder/Decoder
  • Single 5V Power Supply
  • Pb-Free, RoHS Compliant Versions Offered

  • Interface for SONET and DS3/E3 Network Equipment
  • Digital Cross Connect Systems
  • CSU/DSU Equipment
  • PCM Test Equipment
  • Fiber Optic Terminals

Documentation & Design Tools

Type Title Version Date File Size
Data Sheets XRT7296 DS3/STS-1/E3 Integrated Line Transmitter 2.0.4 April 2000 356 KB
Application Notes TAN-200, MaxLinear APIs - OS Portability 1.0.0 August 2007 88.5 KB
User Guides & Manuals XRT7295 Evaluation System Manual 1.0.0 July 1998 563.6 KB
Simulation Models
Package Type Vcc Temp Mode Version File
PDIP 5V Industrial 3
SOJ 5V Industrial 2
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Parts & Purchasing

Part Number Pkg Code Min Temp Max Temp Status Suggested Replacement PDN
XRT7296AIP-F OBS
XRT7296AIW SOJ28 OBS
XRT7296IP-F OBS
XRT7296IW SOJ28 OBS
XRT7296IW-F SOJ28 -40 85 OBS
XRT7296IW-S002 SOJ28 OBS
XRT7296IWTR SOJ28 OBS
XRT7296IWTR-F SOJ28 -40 85 OBS
XRT7296IWTR-S1259 SOJ28 OBS
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Part Status Legend
Active - the part is released for sale, standard product.
EOL (End of Life) - the part is no longer being manufactured, there may or may not be inventory still in stock.
CF (Contact Factory) - the part is still active but customers should check with the factory for availability. Longer lead-times may apply.
PRE (Pre-introduction) - the part has not been introduced or the part number is an early version available for sample only.
OBS (Obsolete) - the part is no longer being manufactured and may not be ordered.
NRND (Not Recommended for New Designs) - the part is not recommended for new designs.

Packaging

Pkg Code Details Quantities Dimensions PDF
SOJ28
  • JEDEC Reference: MO-088
  • MSL Pb-Free: L1 @ 260ºC
  • MSL SnPb Eutectic: n/a
  • ThetaJA: 46ºC/W
  • Bulk Pack Style: Tube
  • Quantity per Bulk Pack: n/a
  • Quantity per Reel: 1000
  • Quantity per Tube: 25
  • Quantity per Tray: n/a
  • Reel Size (Dia. x Width x Pitch): 330 x 24 x 12
  • Tape & Reel Unit Orientation: Pin 1 at sprocket hole.
  • Dimensions: inch
  • Length: 0.705
  • Width: 0.296
  • Thickness: 0.13
  • Lead Pitch: 1.27

Notifications

Distribution Date Description File
07/12/2017 Product Discontinuation Notice
11/22/2013 Qualification of an alternate qualified 28L SOJ production site, Greatek, Taiwan. Alternate assembly site.
09/28/2009 Notice of Obsolescence. Discontinued due to low market demand, effective immediately.

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