DS1020S-50/T&R

Overview

The DS1020S-50/T&R is a programmable 8-bit silicon delay line manufactured by Analog Devices Inc./Maxim Integrated. It provides a total delay range of 137.5 ns with an incremental step size of 0.5 ns. The device features an inherent step-zero delay of 10 ns and operates on a single +5V supply (4.75V to 5.25V). It supports both 3-wire serial and 8-bit parallel programming interfaces. The component is housed in a 16-pin SOIC package and functions within a commercial temperature range of 0°C to 70°C.

Feature Summary

• Supports dual programming modes via 3-wire serial port or 8-bit parallel port for flexible system integration.
• Provides accurate leading and trailing edge timing reproduction without signal inversion.
• Features TTL/CMOS-compatible logic levels capable of driving multiple standard loads.

Applications

• Precision timing control in digital systems requiring adjustable delays.
• Pulse width modulation generation through configurable delay steps.
• Daisy-chained multi-device synchronization using serial data output.

Procurement Notes

Verify the specific suffix designation against official documentation, as packaging variations may exist. Confirm that the T&R suffix corresponds to tape and reel packaging if required for automated assembly processes. Ensure compatibility with existing design specifications regarding voltage and interface requirements before finalizing procurement decisions.

Selection Notes

Select this model when a 0.5 ns resolution is required within a maximum 137.5 ns delay range. Consider the 16-pin SOIC package for surface mount applications where space efficiency is prioritized over DIP configurations. Evaluate the need for serial versus parallel programming based on available microcontroller resources and pin count constraints.

Part Context

This component belongs to the DS1020 family of programmable silicon delay lines. The series includes variants with different step sizes ranging from 0.15 ns to 2 ns, allowing designers to choose the appropriate granularity for their specific timing requirements while maintaining consistent interface and package characteristics across the product line.

Replacement Considerations

Direct replacements include other models within the DS1020 series such as DS1020S-25 or DS1020S-100, provided the delay resolution matches application needs. Verify pinout compatibility and electrical characteristics before substituting components from different manufacturers.