DS2174Q

Telecom Overview

The DS2174Q is an enhanced bit error-rate tester (EBERT) manufactured by Analog Devices Inc./Maxim Integrated. It operates within a temperature range of 0°C to +70°C and utilizes a 44-pin PLCC package. The device supports data rates up to 622 Mbps in byte mode, with a clock rate of 80 MHz for OC-3 applications. Serial mode supports a clock rate of 155 MHz. It functions as a software-programmable test-pattern generator, receiver, and analyzer.

Telecom Feature Summary

• Generates and detects digital patterns for analyzing and troubleshooting digital communications systems
• Programmable polynomial length and feedback taps for generation of pseudorandom patterns up to 2^32 - 1
• Supports user-defined repetitive pattern registers for long repetitive patterns up to 512 bytes in length
• Features fully independent transmit and receive paths with programmable serial, nibble-parallel, or byte-parallel interfaces

Telecom Applications

• Routers
• Channel Service Units (CSUs)
• Data Service Units (DSUs)
• Muxes
• Switches

Telecom Procurement Notes

Verify the specific ordering suffix 'Q' confirms the commercial temperature range of 0°C to +70°C against the datasheet. Confirm the 44-pin PLCC package matches the design requirements. Check for any device errata associated with this revision before finalizing procurement decisions.

Telecom Selection Notes

Select the DS2174Q when a commercial temperature range is sufficient for the application environment. Ensure the system design accommodates the 44-pin PLCC footprint. Verify that the required parallel control interface and data bus widths align with the host controller capabilities.

Telecom Part Context

This component belongs to the Maxim Integrated EBERT family, designed for high-performance digital transmission testing. It serves as a specialized communication IC capable of generating complex pseudorandom and repetitive patterns for network diagnostics and equipment validation.

Telecom Replacement Considerations

The DS2174QN is a verified alternative offering an extended industrial temperature range (-40°C to +85°C) while maintaining identical pinout and functionality. No other direct substitutes are documented in the provided source material.