DS1100Z-40/T&R

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Number of Taps/Steps:	5
Function:	Nonprogrammable
Delay to 1st Tap:	8ns
Tap Increment:	8ns
Available Total Delays:	40ns
Number of Independent Delays:	1
Voltage - Supply:	4.75 V ~ 5.25 V
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	8-SOIC
Base Part Number:	DS1100

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DS1100Z-40/T&R Application Field and Working Principle of Clock/Timing - Delay Lines

Delay lines, like most clock components, are used to obtain various timing control signals but the key distinguishing feature of delay lines is that they provide a variable delay. An example of one of the more popular delay line products is the DS1100Z-40/T&R delay line (DL) from Texas Instruments.

Application Fields

Due to their variable shaping characteristics, delay lines can be used in many circuit applications such as clock splitters, pulse generators, delay to trigger circuitry, programmable logic devices, and random logic circuits. DLs are also used for data shift applications such as store and forward RAM, buffered FIFOs, and digital audio. The controller chip in the DS1100Z-40/ T&R is used in register banks and address drivers. The controller chip for this DL is the SN54ALVC084, which is an 8-bit, low voltage CMOS logic device. The SN54ALVC084 is designed to work with both TTL and CMOS logic families, and is compatible with most popular microprocessors and minicomputers. It can also be used in breadboard circuits and prototyped systems.

Working Principle

The working principle of a delay line consists of two parts: a delay element, and a control circuit. The delay element is composed of a cylindrical cavity filled with a medium that is a dielectric material. The delay element also includes a signal generator located at one end and a receiver located at the other end. When a signal is sent through the dielectric material, it will be delayed due to the medium\'s specific acoustic characteristics. The control circuit of a delay line is used to control the amount of delay introduced by the delay element. This is done by controlling the frequency of the signal generator. The DS1100Z-40/ T&R delay line operates by using a clock signal input that is sent to the controller chip, which then controls both the signal generator and receiver. The controller chip can generate customer supplied control signals such as clock enable and disable, and the appropriate clock cycles needed by the application. The control circuit has an adjustable range that can be set in increments down to 1 nanosecond (ns), which allows the customer to set the delays they need, while still getting accurate results.

Conclusion

The DS1100Z-40/ T&R delay line is an effective way to obtain variable delays for timing control applications. With its low voltage design and compatibility with many microprocessors and minicomputers, it is a cost-effective and efficient solution for many types of clock applications. The adjustable range feature allows for customer specified delays that are accurate, and because the controller chip is so versatile, it can be used with either TTL or CMOS logic families. The DS1100Z-40/ T&R delay line is a globally recognized clock device that continues to be used today, and it is sure to continue to be an important part of timing control and clock related applications.

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