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XRT83L38IV from EXAR

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XRT83L38IV

Manufacturer: EXAR, XR

OCTAL T1/E1/J1 LH/SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR

Partnumber Manufacturer Quantity Availability
XRT83L38IV EXAR, XR 392 In Stock

Description and Introduction

OCTAL T1/E1/J1 LH/SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR The **XRT83L38IV** is a quad T1/E1/J1 line interface unit (LIU) manufactured by **EXAR Corporation**. Below are the key specifications, descriptions, and features based on factual information:

### **Specifications:**  
- **Manufacturer:** EXAR Corporation  
- **Type:** Quad T1/E1/J1 Line Interface Unit (LIU)  
- **Package:** 64-pin LQFP (Low-profile Quad Flat Package)  
- **Operating Voltage:** 3.3V  
- **Operating Temperature Range:** Industrial (-40°C to +85°C)  
- **Data Rate Support:**  
  - T1 (1.544 Mbps)  
  - E1 (2.048 Mbps)  
  - J1 (Japanese standard, similar to T1)  
- **Compliance:** Meets ITU-T G.703, G.704, G.706, G.732, G.823, and ANSI T1.403 standards  

### **Descriptions:**  
- The **XRT83L38IV** integrates four independent LIUs in a single chip, reducing board space and power consumption.  
- It provides full transmit and receive functionality for T1, E1, or J1 applications.  
- Includes built-in jitter attenuation, line build-out (LBO), and programmable pulse shaping.  
- Supports both short-haul and long-haul applications.  

### **Features:**  
- **Four Independent LIU Channels:** Each channel can be configured for T1, E1, or J1 operation.  
- **Built-in Jitter Attenuator:** Helps maintain signal integrity.  
- **Programmable Line Build-Out (LBO):** Adjustable for different cable lengths.  
- **Transmit Pulse Shaping:** Compliant with T1/E1 standards.  
- **Receive Equalization:** Adaptive to varying line conditions.  
- **Loss of Signal (LOS) Detection:** Automatic detection of signal failure.  
- **Loopback Modes:** Supports local, remote, and analog loopback for diagnostics.  
- **Low Power Consumption:** Optimized for power-sensitive applications.  
- **Industrial Temperature Range:** Suitable for harsh environments.  

This information is based on EXAR's official documentation for the **XRT83L38IV**. For detailed technical parameters, refer to the datasheet.

Application Scenarios & Design Considerations

OCTAL T1/E1/J1 LH/SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR

Alternative Part Number

  • DS3150TN --: Single-channel T1/E1/J1 line interface unit in the same function class as the XRT83L38 octal LIU, suitable for designs needing fewer channels with similar framing support.
  • IDT82V2088 --: Octal T1/E1/J1 line interface unit offering comparable multi-channel density and system-side interface, a common cross for Exar LIU parts.
  • BCM5638 --: Multi-channel telecom line interface device used in similar T1/E1 transport applications; verify pinout and software compatibility before substitution.
  • PM4351 --: Multi-channel T1/E1 transceiver/LIU with similar line-side and system-side capabilities, usable as an alternative where the XRT83L38 is unavailable.

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