UAF42 Active Filter Module Highpass/Lowpass/Bandpass Adjustable Filtering BoardHighlights: Its neat layout is designed strictly in reference to filter circuit. Using high quality materialsVarious filter functionsSuitable for student competition and personal project developmentDimensions: 50mm * 50mmSupply voltage range: maximum 18VMain features: 1. Adopting UAF42AU chip; Accurate frequency and Q value2. Convenient to use; Center frequency slide adjustment (0~50KHz)3. Strong applicability; Integrated with low pass high pass band