The DS1124 is an 8-bit programmable timing element similar in function to the DS1021-25. The 256-delay intervals are programmed by using a 3-wire serial interface. With a 0.25ns step size, the DS1124 can provide a delay time from 20ns up to 84ns with an integral nonlinearity of ±3ns.

Applications

LCD Televisions
Telecommunications
Digital Test Equipment
Digital Video Projection
Signal Generators and Analyzers

The DS1124 is an 8-bit programmable delay line that can be adjusted between 256 different delay intervals. The DS1124 architecture allows some signals to be delayed by more than one period, which lets the phase of the signal to be adjusted up to a full 360°. Programming is performed by a 3-wire serial interface. Using the 3-wire interface, it is possible to cascade multiple devices together for systems requiring multiple programmable delays without using additional I/O resources.

To achieve the best results when using the DS1124, decouple the power supply with a 0.01μF and a 0.1μF capacitor. Use high-quality, ceramic, surface mount capacitors, and mount the capacitors as close as possible to the VCC and GND pins of the DS1124 to minimize lead inductance. The DS1124 may not perform as specified if good decoupling practices are not followed.

Read and download: DS1124 8-Bit Programmable Timing Element