SINGLE CHANNEL DS3/E3 FRAMER IC WITH HDLC CONTROLLER The XRT72L50IQ is a high-performance, single-chip transceiver manufactured by EXAR Corporation. Below are its key specifications, descriptions, and features:
### **Specifications:**
1. **Manufacturer:** EXAR Corporation
2. **Part Number:** XRT72L50IQ
3. **Type:** Single-Chip Transceiver
4. **Interface:** T1/E1/J1 Line Interface
5. **Data Rate:** Supports T1 (1.544 Mbps), E1 (2.048 Mbps), and J1 (1.544 Mbps)
6. **Supply Voltage:** 3.3V
7. **Operating Temperature Range:** -40°C to +85°C
8. **Package:** 100-pin LQFP (Low-Profile Quad Flat Package)
9. **Compliance:** Meets ITU-T G.703, G.704, G.706, G.732, G.823, ANSI T1.403, and AT&T TR 62411 standards
### **Descriptions:**
- The XRT72L50IQ is a highly integrated transceiver designed for T1/E1/J1 short-haul and long-haul applications.
- It combines both transmit and receive functions in a single chip, reducing board space and power consumption.
- The device supports both framed and unframed modes, making it versatile for various telecom applications.
- It includes built-in jitter attenuation, line build-out (LBO), and adaptive equalization for robust performance.
### **Features:**
1. **Integrated Line Interface:** Combines transmitter and receiver in a single chip.
2. **Jitter Attenuation:** On-chip jitter attenuation for improved signal integrity.
3. **Line Build-Out (LBO):** Supports programmable LBO for different cable lengths.
4. **Adaptive Equalization:** Compensates for signal degradation over long distances.
5. **Loopback Modes:** Supports local, remote, and digital loopback for diagnostics.
6. **Framed/Unframed Support:** Compatible with both structured and unstructured data formats.
7. **Low Power Consumption:** Optimized for power efficiency in telecom applications.
8. **HDB3/B8ZS Encoding/Decoding:** Supports common line coding schemes.
9. **Alarm Detection & Reporting:** Includes LOS (Loss of Signal), AIS (Alarm Indication Signal), and RAI (Remote Alarm Indication) detection.
This information is based solely on the factual specifications and features of the XRT72L50IQ as provided by EXAR Corporation.
