Netcom’s 5690 is a tunable frequency range filter.
Unlike a regular tunable bandpass filter, where only the center frequency is adjustable, the Multi-Tune filter is a digitally programmable filter with adjustable passband between any f1 and f2 frequencies.
f1 and f2 are independently tuned at any frequency, forming a filter which has a completely adjustable center frequency and bandwidth.
This filter is offered in a small integrated SMT package to support applications where compact design, power requirements, and board layout flexibility are important.
Besides the application of using a single 5690 unit to have a very large number of f1 and f2 combinations to form a tunable frequency range filter, this model also provides the option to combine two or more 5690 units to form a tunable notch filter at the frequency range 1.5 to 30MHz. Read the Application Note for more details.
