This section provides overview, applications, and principles of programmable delay lines. Also, please take a look at the list of 2 programmable delay line manufacturers and their company rankings.
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A programmable delay line is a type of electronic circuit that delays the propagation time of an electrical signal, allowing the delay time to be varied by programming.
Other types of delay lines are called passive delay lines, which consist only of passive elements, and active delay lines, which can be driven by an external IC.
Delaying signals for an arbitrary amount of time can be timed with other signals or intentionally time-delayed and are used in a wide variety of electronic devices today, including communications equipment.
Programmable delay lines are sometimes used to match the timing of data and clock signals. The higher the speed, in particular, the more problematic slight timing deviations become, so they must be able to be adjusted precisely.
Other applications include signal pulse width conversion, oscillator circuits, frequency multipliers, frequency discriminators, and many others.
Applications range from medical, broadcasting, military, and space applications and are used when precise timing is required in various detection and communication devices.
A programmable delay line consists of a delay line that delays a signal and a multiplexer that selects the desired delay time.
There are several ways to configure a delay line, and currently, the most commonly used is a ladder-type transmission network with inductance L and capacitance C. The delay time for an N-stage ladder-type circuit is √(L x C) per section or N x √(L x C) in total.
Another configuration is to use a voltage-controlled delay line (VCDL) in which the propagation delay time of the logic gates is controlled by the supply voltage.
The desired delay time can be obtained by selecting any stage of the ladder-type circuit with an address signal at the multiplexer.
When using a programmable delay line, it is necessary to select it appropriately to meet the required performance and number of bits for the application, considering the following characteristics: accurate delay time, good frequency and phase characteristics, low loss, and good temperature characteristics.
*Including some distributors, etc.
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Ranking as of January 2023 in United States
Derivation MethodRank | Company | Click Share |
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1 | Maxim Integrated | 100% |
Ranking as of January 2023 Globally
Derivation MethodRank | Company | Click Share |
---|---|---|
1 | Maxim Integrated | 100% |
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The ranking is calculated based on the click share within the programmable delay line page as of January 2023. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
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