Push Button Control of Digital Potentiometers (DP) with an Increment / Decrement Interface DESIGN NOTE
There are a number of ways of programming digital potentiometers. The best technique depends on the DP's type of interface and its application.
This Design Note discusses the push button control of DP which have an increment/decrement interface in applications where there is no embedded processor. Instead, the DP is programmed using push button switches to generate the control signals for the UPDN, INC, and CS inputs. For those applications where the programming of the DP is an ongoing requirement, the push button switches and the interface circuitry will be part of the application. For those applications where the DP will be programmed only once during production testing, the switches and their interface will be in an external controller unit. The controller unit containing the push button switches is typically connected to the DP using pins, cable and a connector or a bed-of-nails test system.
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Application note & Design Guide |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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9/14/01 |
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Rev. A |
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DN1;6010 |
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104 KB |
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