MaxLinear, Inc. Interface - Telecom XRT83L34IV-F

The XRT83L34IV-F is a fully integrated quad-channel line interface unit designed for T1, E1, and J1 telecommunications applications. It supports long-haul and short-haul configurations, accommodating various cable impedances including 75,Ѷ, 100,Ѷ, 110,Ѷ, and 120,Ѷ. The device can handle significant signal attenuation, with a maximum of 36dB for T1 and 43dB for E1, making it suitable for installations with considerable cable loss. This product features programmable transmit pulse shaping and five fixed pulse settings for T1 short-haul applications, ensuring compliance with Digital Cross-Connect (DSX-1) requirements. It includes on-chip encoding and decoding capabilities for HDB3, B8ZS, and AMI formats, along with a digital clock recovery circuit that enhances input jitter tolerance. The XRT83L34IV-F also offers various diagnostic features, including transmit driver short-circuit detection and receive loss of signal monitoring. It supports both hardware and parallel microprocessor interfaces for programming and control, and operates on a single 3.3V supply. The device is packaged in a 128-pin TQFP and is rated for operation in temperatures ranging from -40¬8C to +85¬8C. This combination of features makes the XRT83L34IV-F a versatile choice for engineers looking to implement reliable telecom interfaces in their projects.