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XRT91L30IQ from EXAR

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XRT91L30IQ

Manufacturer: EXAR, XR, XRT

STS-12/STM-4 OR STS-3/STM-1 SONET/SDH TRANSCEIVER

Partnumber Manufacturer Quantity Availability
XRT91L30IQ EXAR, XR, XRT 10922 In Stock

Description and Introduction

STS-12/STM-4 OR STS-3/STM-1 SONET/SDH TRANSCEIVER The XRT91L30IQ is a transceiver IC manufactured by Exar (XR). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:  

### **Manufacturer:** Exar (XR)  
### **Part Number:** XRT91L30IQ  

### **Description:**  
The XRT91L30IQ is a highly integrated, low-power, single-chip transceiver designed for T1/E1/J1 line interface applications. It supports both short-haul and long-haul configurations and includes advanced features for jitter attenuation, clock recovery, and line diagnostics.  

### **Key Features:**  
1. **Compliance:**  
   - Supports T1 (1.544 Mbps), E1 (2.048 Mbps), and J1 line rates.  
   - Meets ITU-T G.703, G.704, G.706, G.732, G.823, and ANSI T1.102, T1.403 standards.  

2. **Line Interface:**  
   - Integrated line driver and receiver.  
   - Programmable pulse shaping for improved signal integrity.  
   - Adjustable transmit and receive gain.  

3. **Jitter Attenuation:**  
   - On-chip jitter attenuator with selectable bandwidth.  
   - Supports both transmit and receive jitter reduction.  

4. **Clock Recovery:**  
   - Digital phase-locked loop (DPLL) for robust clock recovery.  
   - Selectable reference clock sources.  

5. **Diagnostic Features:**  
   - Loopback modes (local, remote, and analog).  
   - Error counters for BPV (Bipolar Violation), CRC, and frame errors.  
   - LOS (Loss of Signal), AIS (Alarm Indication Signal), and RAIS (Remote Alarm Indication Signal) detection.  

6. **Power Management:**  
   - Low-power operation with standby modes.  
   - Single 3.3V supply.  

7. **Package:**  
   - 100-pin TQFP (Thin Quad Flat Package).  

8. **Temperature Range:**  
   - Industrial grade (-40°C to +85°C).  

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

Application Scenarios & Design Considerations

STS-12/STM-4 OR STS-3/STM-1 SONET/SDH TRANSCEIVER

Alternative Part Number

  • DS90LV031A --: Quad LVDS line driver with similar signaling function and widely available as a functional replacement.
  • SN65LVDS31 --: Quad LVDS driver offering comparable differential signaling performance and pin-compatible options.
  • MAX9150 --: LVDS line driver/receiver family suitable for similar high-speed differential interface applications.
  • DS3150QN+ --: Single-chip DS3/E3/STS-1 line transceiver in a 14x14 mm PQFP, functionally comparable to the XRT91L30 with similar line interface and clock recovery features.
  • PM4351-RI --: DS3/E3/STS-1 transceiver with integrated LIU and framer, widely used as a drop-in functional replacement in telecom line-card designs.
  • DS3144N+ --: Quad DS3/E3/STS-1 transceiver offering similar jitter attenuation and line interface capability, suitable when multi-channel density is acceptable.
  • FIN1031 --: Quad LVDS line driver with similar electrical characteristics and suitable for the same interface applications.

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