Data transmission accuracy requires sending and receiving clean, error-free data. Jitter is caused by many factors including cross-talk noise, line interface/signal distortion, or even an imperfect timing recovery circuit. At every connection point (node) in a WAN environment, equipment and peripheral devices can cause new errors to be introduced into transmitted data. For precise data transmission, jitter must be reduced.
Exar has a full line of single, and multi-channel jitter attenuator solutions that match, or outperform, other methods, and are much easier to deploy at a lower cost. The XRT71D00, the industry's first jitter attenuator, is a fully integrated single-chip device for DS3/E3 applications. Complementing this device are the XRT71D03 (three-channel), and XRT73D04 (four-channel) parts, which like the XRT71D00, are designed to attenuate the jitter from the incoming clock and data signals. The parts are designed for seamless integration with EXAR's Line Interface Units (LIUs), and access control products enabling designers to implement a complete solution from a single source.
The XRT71D00, XRT71D03, and XRT71D04 meet the European Telecommunications Standards Institute (ETSI), technical committee draft standards TBR-24 for digital structured and unstructured leased lines. The Bellcore GR-499, and GR-253, require that terminal equipment, which derives its timing from the received signal at the input port, must not exceed specified output jitter levels. All three devices are compliant with the ANSI T1.105.03b 1997, and ITU G.751, G.752, G.755 standards.
- Supports DS3/E3/STS-1 rates
- Each channel can operate at different data rates
- Selectable buffer size (16- or 32-bit)
- Available in either a 64-pin (XRT71D03), or a 80-pin (XRT71D04) TQFP package
- Single 3.3V or 5.0V supply
- Operates over industrial temperature ranges
- Pb-Free, RoHS Compliant Versions Offered
- Frame Relay
- E3/DS3/STS-1 Access Equipment
- Add/Drop Multiplexers
- ATM switches
- STS-1 to DS3 Mappers
Parts & Purchasing
|Part Number||Pkg Code||Min Temp||Max Temp||Status||Buy Now||Order Samples|
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.
Quality & Environmental Data
|Part Number||RoHS | Exempt||RoHS||Halogen Free||REACH||MSL Rating / Peak Reflow||Package|
|XRT71D03IV-F||N||Y||Y||Y||L3 / 260ᵒC||LQFP64|
Click on the links above to download the Certificate of Non-Use of Hazardous Substances.
Search our list of FAQs for answers to common technical questions.
For material content, environmental, quality and reliability questions review the Quality tab or visit our Quality page.
For ordering information and general customer service visit our Contact Us page.
Frequently Asked Questions
In this example, we looked for XRA1201. Click on part number header or on the link at the bottom of the result. This brings you to the product page. For example:
Click on Parts & Purchasing, highlighted with the blue arrow above. The screen changes to:
Notice the status column and the “Show obsolete parts” link. A legend tells you the definition of the different statuses. Click on the “Show obsolete parts” link to see EOL or OBS part numbers along with the Active part numbers, the legend still present:
Another method to find out if a part is OBS or EOL is to click on SUPPORT at the top:
And then Product Change Notifications:
Type the part into the search, and click on one of the part numbers from the drop down menu. Then you can look for the Product Discontinuation Notice, which generally is at the top of the list, for example:
If you see this, it tells you that this particular orderable part has been discontinued and when the last order date is, or was. If you click on the file, then you can view the notice we sent about this if you purchased the part in the recent past. It may also advise of a replacement part. When an orderable part first becomes discontinued, Product Discontinuation Notices are sent are sent to those who have purchased the parts in the recent past, if purchased directly, with a dated opportunity to place a last order.
Submit a Technical Support Question As a New Question