DS1023S-50+

Overview

The DS1023S-50+ 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 0.5 ns with a maximum delay time of 127.5 ns. The device supports both parallel and serial programming modes, allowing flexible configuration for various timing applications. It is housed in a 16-pin SOIC package and functions within an operating temperature range of 0°C to +70°C.

Feature Summary

• Configurable as a delay line, pulse width modulator, or free-running oscillator
• Supports parallel or serial programming interfaces
• Includes an on-chip reference delay to compensate for inherent step zero delay
• Capable of delaying clocks by a full period or more

Applications

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

Procurement Notes

Verify the component against official datasheets to confirm pinout compatibility and electrical specifications. Ensure that the operating voltage and temperature ranges align with your system requirements. Check for any specific handling instructions related to the SOIC package and CMOS technology.

Selection Notes

Consider the required delay resolution and maximum delay time when selecting this component. Evaluate whether parallel or serial programming best suits your application's control interface. Assess the impact of the on-chip reference delay on overall system accuracy and ensure it meets your design needs.

Part Context

The DS1023 series includes variants with different step sizes (0.25 ns, 0.5 ns, 1 ns, 2 ns, 5 ns). The DS1023S-50+ specifically offers a 0.5 ns step size, making it suitable for applications requiring moderate delay precision. Other series members may have different maximum delays and input frequency limits.

Replacement Considerations

Direct replacements include other DS1023 variants with compatible step sizes and packaging. Verify functional equivalence regarding programming modes and output configurations before substitution.

FAQ

What is the purpose of the on-chip reference delay?

The on-chip reference delay compensates for the inherent 'step zero' delay caused by propagation through input and output buffers, allowing for accurate relative timing measurements.

Can the DS1023S-50+ be used as a free-running oscillator?

Yes, by connecting the inverted output (OUT) externally to the input (IN), the device can function as a free-running oscillator with a frequency determined by the programmed delay value.

How is the delay value programmed in the DS1023S-50+?

The delay value can be programmed using either parallel inputs (P0-P7) or serial data (D/CLK), controlled by the P/S pin to select the desired mode.