| Popis: |
The paper describes a design of a very short rise/fall time programmable pulse generator. The circuit is based on a Si-Ge comparator, resulting in the rise/fall time of 50 ps. Low component count makes the design relatively simple. As a result, in many applications the presented generator can be a low-cost alternative to sophisticated test and measurements equipment. Due to use of in-system-programmable microcontroller and RS-232 interface, firmware upgrades of the device are very easy, and the generator can be controlled by a PC computer and used in automated measurement applications. |
