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XRT75L04DIV from XR

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XRT75L04DIV

Manufacturer: XR, XRT, EXAR

FOUR CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
Partnumber Manufacturer Quantity Availability
XRT75L04DIV XR, XRT, EXAR 304 In Stock

Description and Introduction

FOUR CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER The XRT75L04DIV is a quad-channel T1/E1/J1 line interface unit (LIU) manufactured by EXAR Corporation. Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**
- **Manufacturer:** EXAR  
- **Part Number:** XRT75L04DIV  
- **Type:** Quad-Channel T1/E1/J1 Line Interface Unit (LIU)  
- **Interface Standards:** Supports T1 (1.544 Mbps), E1 (2.048 Mbps), and J1 (1.544 Mbps)  
- **Supply Voltage:** 3.3V ±10%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 100-pin TQFP (Thin Quad Flat Package)  
- **Compliance:** Meets ITU-T G.703, G.704, G.706, G.732, G.736, G.823, ANSI T1.102, T1.403, and AT&T TR 62411  

### **Descriptions:**
- The XRT75L04DIV is a highly integrated quad-channel LIU designed for telecom and datacom applications.  
- It provides full transmit and receive functionality for T1, E1, and J1 interfaces.  
- Includes built-in jitter attenuation, line build-out (LBO), and programmable impedance matching.  
- Supports both short-haul and long-haul applications.  

### **Features:**
- **Four Independent Channels:** Each channel can be configured for T1, E1, or J1 operation.  
- **Integrated Clock Recovery:** On-chip clock and data recovery (CDR) for each channel.  
- **Programmable Line Build-Out (LBO):** Adjustable for different cable lengths.  
- **Jitter Attenuation:** Built-in jitter attenuation for improved signal integrity.  
- **Loopback Modes:** Supports local, remote, and analog loopback testing.  
- **Diagnostic Features:** Includes LOS (Loss of Signal), AIS (Alarm Indication Signal), and RA (Remote Alarm) detection.  
- **Low Power Consumption:** Optimized for power-sensitive applications.  
- **Software Configurable:** Control via serial or parallel microprocessor interface.  

This information is based solely on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

FOUR CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER

Alternative Part Number

  • DS3150TN --: Single-channel T1/E1/J1 line interface unit in the same telecom LIU class, widely available and functionally comparable to the XRT75L04 quad LIU.
  • DS26504LN --: Quad T1/E1/J1 transceiver with integrated framer and LIU, matching the multi-channel telecom interface role of the XRT75L04DIV.
  • IDT82V2044EPFG --: Quad-channel T1/E1 line interface unit from a different vendor series, offering similar multi-port telecom line interface functionality.
  • PM4351-RI --: Quad T1/E1 transceiver/framer offering comparable multi-channel telecom interface capability and a common alternative in similar applications.
  • IDT82V2044 --: Quad T1/E1 line interface unit with similar channel count and telecom interface features, suitable as a functional substitute.
  • XRT75L00IV --: Same Exar XRT75L family but a different variant (single-channel LIU) from the same vendor, ensuring identical interface and software compatibility for reduced-port applications.
  • DS21458 --: Quad T1/E1 transceiver/LIU offering comparable multi-channel line interface functionality to the XRT75L04, suitable as a functional replacement in telecom line-card designs.

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