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 |
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 |
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 |
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.
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