DS3184

Specialized ICS Overview

The DS3184 is a quad ATM/Packet PHY with integrated Line Interface Units (LIUs) designed for mapping and demapping ATM cells or HDLC packets into up to four DS3, E3, or clear-channel data streams. It supports DS3-framed, E3-framed, and arbitrary framing protocols up to 52Mbps per port. The device features independent receive and transmit paths with clock/data recovery and jitter attenuation. It interfaces via UTOPIA L2/L3, POS-PHY L2/L3, or SPI-3 buses with configurable bus widths of 8, 16, or 32 bits. Operating at 3.3V with 5V-tolerant I/O, it consumes approximately 2.7W typical power and is housed in a thermally enhanced 400-pin PBGA package.

Specialized ICS Feature Summary

• Integrates four DS3/E3/STS-1 ports with built-in LIUs, framers, and ATM/packet processors
• Supports UTOPIA L2/L3, POS-PHY L2/L3, and SPI-3 system interfaces
• Configurable for DS3 (M23/C-bit), E3 (G.751/G.832), or clear-channel modes
• Includes on-chip BERTs, performance monitoring counters, and HDLC overhead controllers

Specialized ICS Applications

• Access Concentrators
• SONET/SDH ADM and Muxes
• Multiservice Access Platform (MSAP)
• Digital Cross Connect Systems
• Integrated Access Devices (IAD)

Specialized ICS Procurement Notes

Verify the specific temperature grade required for the application. The standard DS3184 operates from 0°C to +70°C, while the DS3184N variant supports -40°C to +85°C. Confirm that the 400-pin TE-PBGA package dimensions align with the target PCB layout. Check for any manufacturer errata related to specific silicon revisions before finalizing the design.

Specialized ICS Selection Notes

Select the DS3184 when four independent high-density line ports are required within a single component. Ensure the host processor supports the necessary UTOPIA, POS-PHY, or SPI-3 interface standards. Verify that the system power budget accommodates the typical 2.7W consumption. Consider pin compatibility with the DS317x and DS316x families if future migration or port density scaling is planned.

Specialized ICS Part Context

The DS3184 belongs to the DS318x family, which includes single (DS3181), dual (DS3182), and triple (DS3183) variants. These devices share identical pinouts and packaging to facilitate easy migration across different port densities on the same printed circuit board platform. They serve as universal high-density line card solutions for unchannelized DS3/E3 applications.

Specialized ICS Replacement Considerations

The DS3184 is pin-compatible with the DS3174 and DS3164 families. Substitution requires verification of software register compatibility and feature set alignment, as these families may differ in specific protocol support or internal architecture.