DS1023S-500+T&R

Overview

The DS1023S-500+T&R is an 8-bit programmable timing element manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single 5V supply (4.75V to 5.25V) and features a delay step size of 5ns, yielding a maximum delay time of 1275ns. The device supports both parallel and serial programming interfaces and includes an on-chip reference delay for accurate phase control. It is housed in a 16-pin SOIC package with a commercial operating temperature range of 0°C to +70°C.

Feature Summary

• Configurable as a delay line, pulse width modulator, or free-running oscillator
• Includes an on-chip reference delay to compensate for inherent step zero delay
• Supports both parallel and serial programming modes

Applications

• Clock phase control
• Pulse width modulation
• Free-running oscillation

Procurement Notes

Verify the specific suffix against official documentation to confirm packaging details. Confirm that the component meets RoHS compliance requirements for the intended application. Ensure the supplier provides valid traceability data for this part number.

Selection Notes

Select this variant when a 5ns resolution is required. Verify that the maximum input frequency of 10MHz aligns with system clock speeds. Ensure the 16-pin SOIC footprint matches the PCB layout constraints.

Part Context

This component belongs to the DS1023 family of 8-bit programmable timing elements. It shares functional similarities with the DS1020 and DS1021 but offers extended capabilities such as full-period clock delay and integrated reference outputs.

Replacement Considerations

DS1023S-200+T&R

FAQ

How does the on-chip reference delay improve accuracy?

The reference delay compensates for the inherent 'step zero' delay caused by input/output buffers, allowing relative timings down to zero and canceling out process temperature coefficient effects.

What is the minimum input pulse width for the DS1023-500?

The minimum input pulse width is 50ns, which limits the maximum usable clock frequency to 10MHz under normal delay mode conditions.