Features
Digital pattern generators are primarily characterized by a number of digital channels, a maximum rate and the supported voltage standards.
- The number of digital channels defines the maximum width of any pattern generated - typically, 8-bits, 16-bits, 32 bits pattern generator. A 16-bits pattern generator is able to generate arbitrary digital samples on from 1 to 16 bits.
- The maximum rate defines the minimum time interval between 2 successive patterns. For instance, a 50 MHz (50 MSample/s) digital pattern generator is able to output a new pattern every 20 nanoseconds.
- The supported voltage standards ultimately define the set of electronic devices a digital pattern generator can be used with. Concretely, the voltages and the transition characteristics of the signal at the output of the digital pattern generator will be compliant to these voltage standards. Examples of supported voltage standards: TTL, LVTTL, LVCMOS, LVDS.
Most digital pattern generator add features such as the ability to generate a repetitive sequence or a digital clock signal at a specified frequency, the ability to use an external clock input and triggering options, to start pattern generation upon the reception of an event from an external input.
Read more about this topic: Digital Pattern Generator
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