DS2172T/T&R

Telecom Overview

The DS2172T is a Bit Error Rate Tester (BERT) integrated circuit manufactured by Analog Devices Inc./Maxim Integrated. It operates within a temperature range of 0°C to +70°C and utilizes a 32-pin TQFP package. The device supports clock rates from DC to 52 MHz and functions with a supply voltage between 4.5V and 5.5V, drawing a typical current of 10 mA. It features an 8-bit parallel control interface and includes fully independent transmit and receive sections for generating and analyzing digital bit patterns.

Telecom Feature Summary

• Generates and detects pseudorandom and repetitive test patterns up to 32 bits in length
• Provides software programmable bit error insertion capabilities
• Includes large 32-bit registers for both bit count and error count tracking

Telecom Applications

• Testing digital transmission facilities
• Evaluating switching equipment and multiplexers
• Troubleshooting routers, bridges, CSUs, and DSUs

Telecom Procurement Notes

Verify the specific suffix against official documentation to confirm the operating temperature range. The standard DS2172T variant is rated for commercial temperatures, while the DS2172TN variant covers industrial ranges. Ensure the ordering information matches the required thermal specifications for the target application environment.

Telecom Selection Notes

Select this component when a software-programmable BERT solution is required for digital communication testing. The device supports standard CCITT/ITU O.151, O.152, O.153, and O.161 patterns. Consider the 32-TQFP package constraints and the need for an external microcontroller to manage the multiplexed address/data bus interface.

Telecom Part Context

The DS2172T belongs to the DS2172 family of Bit Error Rate Testers. It serves as a comprehensive test pattern generator, receiver, and analyzer designed to meet stringent error performance requirements for digital transmission facilities. The device integrates pattern generation, synchronization, and counting logic into a single chip.

Telecom Replacement Considerations

Public confirmed substitute part numbers are not available.