aHR0cDovL2ZyZWVzaGlwLmNvLmty![](https://ae01.alicdn.com/kf/HTB1TPv9oruWBuNjSszgq6z8jVXaU/UAF42-High-Pass-Lowpass-Bandpass-Filter-Active-Filter-Module-Low-Pass-Filter-Tunable-Filter.jpg) Item specifics - Type:Air Conditioner Parts
Packaging Details - Unit Type:piece
- Package Weight:0.5kg (1.10lb.)
- Package Size:10cm x 10cm x 10cm (3.94in x 3.94in x 3.94in)
Packaging Details - Unit Type:piece
- Package Weight:0.5kg (1.10lb.)
- Package Size:10cm x 10cm x 10cm (3.94in x 3.94in x 3.94in)
t; Active filter module (UAF42) 1. Product application: A filter is an electronic device that enables useful signals to pass smoothly while suppressing (or attenuating) useless frequency signals. It is commonly used in engineering for signal processing, data transmission and interference suppression. In the past, analog filters were mainly composed of passive components R, L and C. Since 60s, integrated operational amplifier has been developed rapidly. The source filter, composed of it and R and C, has the advantages of no inductance, small volume, light weight and so on. In addition, the open loop voltage gain and input impedance of the integrated operational amplifier are high and the output impedance is very low, and the active filter, which is made up of the integrated OPF, also has a certain voltage amplification and buffer effect. Therefore, active filters based on amplifiers and R and C are widely used. With the development of microelectronics, people can already integrate some resistors and capacitors and op amplifiers on a chip to form a universal active filter (Universal Active Filter, UAF). This chip has a high degree of integration, which integrates the resistance and capacitance required for the design of the filter. In the application, only a few external devices can be used to make a source filter very convenient. The UAF42 of BB (Burr-Brown) is the representative of this kind of general active power filter. It can be widely used in the design of high pass, low pass and bandpass filters. It uses a typical state adjustable (state-variable) analog structure, integrated with a reverse amplifier and two integrators. The integrator includes the capacitance of 1000μ F (± 5%). Therefore, it is better to solve the problem of obtaining low loss (low-loss) capacitors in the design of active wave devices. UAF42 has the following characteristics: It is versatile and can be designed as high pass, low pass, band pass and band stop filter according to needs. The design is simple. BB also designed a software for UAF42, so that different types of filters can be designed conveniently and flexibly. High precision frequency and high Q value; The chip is integrated with 1000pF± 5% capacitance. Two. The product\`s physical map: Three. Technical indicators 1. Power supply voltage: maximum voltage ± 18V 2, it can be configured as low pass filter (J6\\\\J3), bandpass filter (J9\\\\J2), high pass filter (J6\\\\J1). ) 3. Buffer output configuration 4. Some filter effect diagrams Effect of bandpass filter High pass filter effect Effect of low pass filter \
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