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MSGEQ7 Datasheet(PDF) 1 Page - Mixed Signal Integration |
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MSGEQ7 Datasheet(HTML) 1 Page - Mixed Signal Integration |
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1 / 4 page  Seven Band Graphic Equalizer Data Sheet 5/2011 Description The seven band graphic equalizer IC is a CMOS chip that divides the audio spectrum into seven bands, 63Hz, 160Hz, 400Hz, 1kHz, 2.5kHz, 6.25kHz and 16kHz. The seven frequencies are peak detected and multiplexed to the output to provide a DC repre- sentation of the amplitude of each band. No external components are needed to select the filter respons- es. Only an off chip resistor and capacitor are needed to select the on chip clock oscillator fre- quency. The filter center frequencies track this fre- quency. Other than coupling and decoupling capacitors, no other external components are needed. The chip supply can be between 2.7 and 5.5 volts with 5 volts providing the best performance. The device has very low quiescent current ( less than 1mA typical) for portable audio devices. The multiplexor is con- trolled by a reset and a strobe, permitting multi- plexor readout with only two pins. The multiplexor readout rate also controls the decay time (10% de- cay per read), so no external pins are needed for this function. Features Low Power Consumption Only Two External Components On Chip Ground Reference Switched - Capacitor Filters 3.3 or 5 volt Operation 20 dB of Gain Typical On Chip Oscillator Output Multiplexor Variable Decay Time 8 Pin Package Applications Portable Stereos Car Stereos Hi-Fi Stereos Spectrum Analyzers Absolute Maximum Ratings Power Supply Voltage +6V Storage Temperature -60 to + 150 C Operating Temperature 0 to 70 C 20 00 63 160 400 1000 2500 6250 16000 Frequency Response Web Site “www.mix-sig.com” © 2011 Mixed Signal Integration 1 |
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