MAX262 Active Filter Module Programmable Filter High Low Pass Bandpass Programmable Quality Factor for Amplifier
Description Active filter is widely used in digital signal processing communications automatic control general active filter by the operational amplifier and RC components the components of the parameter accuracy is relatively high the design and debugging is also more trouble Maxim s programmable filter chip MAX262 is programmable dual second order general purpose switched capacitor active filter that can be programmed with single chip microcomputer parameters The center frequency fO Q and active filter of the active filter are precisely set Way can achieve low pass high pass band pass band stop and all pass filter Features 1 with a filter design software with a microprocessor interface 2 can control 64 different center frequency f0 128 different quality factor Q and 4 kinds of work patterns 3 the center frequency f0 and quality factor Q can be independently programmed 4 can provide three clock input external clock input RC oscillator and crystal devices 5 the central frequency f0 range of 1Hz 140kHz the maximum input clock 4MHz 6 the filter circuit structure is simple less external components small size 7 can achieve low pass high pass band pass band stop and all pass filter 8 can be A B single stage input and output but also AB cascade of two levels of input and output 9 Product size 50 50MM10 Product weight 22 gramsThe main chip pin description V positive power input V Negative power input GND Analog ground CLKA externa