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XRT75L06IB from EXAR

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XRT75L06IB

Manufacturer: EXAR, XR

SIX CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR

Partnumber Manufacturer Quantity Availability
XRT75L06IB EXAR, XR 600 In Stock

Description and Introduction

SIX CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR The XRT75L06IB is a T1/E1/J1 Line Interface Unit (LIU) manufactured by EXAR Corporation. Below are the factual details about this component:

### **Manufacturer:**  
- **EXAR Corporation** (now part of MaxLinear, following the acquisition in 2017).  

### **Specifications:**  
1. **Function:**  
   - T1/E1/J1 Line Interface Unit (LIU).  
   - Supports both short-haul and long-haul applications.  

2. **Compliance:**  
   - Meets ITU-T G.703, G.704, G.706, G.732, G.736, G.823, and ANSI T1.102, T1.403 standards.  

3. **Data Rate Support:**  
   - T1 (1.544 Mbps), E1 (2.048 Mbps), and J1 (1.544 Mbps) rates.  

4. **Interface:**  
   - Transmit and receive interfaces for both line and system sides.  
   - Supports single 3.3V or 5V power supply operation.  

5. **Features:**  
   - Integrated jitter attenuator (64-bit or 128-bit FIFO).  
   - Programmable transmit and receive levels.  
   - Loss of Signal (LOS) detection.  
   - Remote Loopback and Local Loopback support.  
   - On-chip termination resistors (100Ω for E1, 100Ω/120Ω for T1/J1).  

6. **Package:**  
   - 64-pin LQFP (Low-Profile Quad Flat Package).  

7. **Operating Conditions:**  
   - Industrial temperature range: **-40°C to +85°C**.  

8. **Additional Features:**  
   - B8ZS/HDB3 line coding support.  
   - Short-circuit and thermal protection.  

### **Applications:**  
- T1/E1/J1 CSU/DSU equipment.  
- Routers, multiplexers, and telecom access devices.  
- VoIP gateways and PBX systems.  

This information is based on EXAR's official documentation for the XRT75L06IB. For detailed electrical characteristics and pin configurations, refer to the datasheet.

Application Scenarios & Design Considerations

SIX CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR

Alternative Part Number

  • DS3150TN --: Single-channel T1/E1/J1 line interface unit in the same function class as the XRT75L06, widely used as a drop-in alternative for telecom line interface designs.
  • IDT82V2081 --: Single-channel T1/E1/J1 transceiver/line interface with comparable feature set and pin-compatible family options, suitable replacement for the XRT75L06.
  • BCM6345 --: T1/E1 line interface transceiver offering similar telecom interface functionality; verify package and supply voltage before substitution.
  • DS2155L --: T1/E1 transceiver offering comparable line interface and framing features, suitable for telecom applications similar to the XRT75L06.
  • PM4351-RI --: T1/E1/J1 transceiver with integrated LIU, functionally comparable and available in similar industrial temperature range.

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