XRT59L91

Single Chip E1 Line Interface Unit
Data Sheet

Description

The XRT59L91 and XRT5997 are primarily targeted toward manufacturers of E1 equipment. Some of the primary target applications include telecommunications manufacturers utilizing multi-channel line cards, as well as, network multiplexers, central office switches and digital cross connects.

Typical of SDH applications, E1 line cards have 21 channels. By virtue of Exar's innovative seven-channel design (XRT5997), only three devices, instead of the customary seven, are needed for a standard Analog Front End (AFE). This device count reduction improves both board real estate, and system costs allowing OEMs to offer the latest, most competitive systems to their customers.

For each device, there is an independent driver and receiver circuitry for each channel, allowing seamless Pulse Code Modulation (PCM) interfacing. Each of the drivers can be independently disabled giving designers' greater flexibility in developing optimal power management and back-up redundancy solutions.

Because both devices are based upon standard CMOS process, conversion of AMI line coded signals to TTL/CMOS logic levels is virtually automatic. In addition, designers have the flexibility to interface to either 75 or 120-Ohm lines for transformer coupled configurations.

The XRT59L91ID is available in a 16-lead JEDEC SOIC package. Similarly, the XRT5997IV is available in a 100-pin TQFP package. Both products are designed for industrial temperature ranges.

Features

  • Complete Single- or Seven-Channel E1 Transceiver
  • Low Power 3.3V Operations
  • TCLK Duty Cycle Adjust Circuitry
  • Pb-Free, RoHS Compliant Versions Offered

Application

  • Network Mulitplexers
  • Central Office Switch
  • Digital Cross Connext
  • Telecommunications

Design Tools

Packaging

Parts & Purchasing

Part Number Pkg Code RoHS Min Temp Max Temp Status Buy Now Order Samples
XRT59L91ID-F -40 85 Active Order
XRT59L91IDTR-F -40 85 Active Order
Show obsolete parts
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.

Quality Documents

Part Number REACH
XRT59L91ID-F Download
XRT59L91IDTR-F Download
Additional Quality Documentation may be available, please contact customersupport@maxlinear.com.
Distribution Date Description File
08/10/2017 Qualification of alternate assembly subcon, ANST.
11/16/2015 Updated information subsequent to original published PCN 15-0625-02 on 09/29/2015. Addendum: Update to package marking.
09/29/2015 Greatek as alternate assembly site Addition of an alternate production site, Greatek, Taiwan for 16L, 24L and 28L SOICW
07/15/2010 Change in packing quantity per reel. Standardization
07/14/2010 Standardize packing quantity in tubes, NSOIC9 (97 to 98 units/tube), WSOIC16 (46 to 47 units/tube), TSSOP16 (94 to 95 units/tube) Standardization

Frequently Asked Questions

The best way to determine this is to go to maxlinear.com and type the part into the search function. At or near the top of the results you should see something that looks like:
 
 
 

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.

The -F suffix indicates ROHS / Green compliance:
https://www.exar.com/quality-assurance-and-reliability/lead-free-program