MSGEQ7 – Seven Band Graphic Equalizer

MSGEQ7 Datasheet PDF learn more.

Part number : MSGEQ7

Functions : This is a kind of semiconductor, Seven Band Graphic Equalizer.

Pin arrangement :

Package information :

Manufacturer : Mixed Signal Integration

Image :

MSGEQ7 Datasheet PDF

The texts in the PDF file :

MSGEQ7 9/2004 Seven Band Graphic Equalizer Data Sheet



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 representation of the amplitude of each band. No external components are needed to select the filter responses. Only an off chip resistor and capacitor are needed to select the on chip clock oscillator frequency. The filter center frequencies track this frequency. 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 controlled by a reset and a strobe, permitting multiplexor readout with only two pins. The multiplexor readout rate also controls the decay time (10% decay per read), so no external pins are needed for this function. 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 Storage Temperature Operating Temperature +6V -60 to + 150 C 0 to 70 C 20 00 63 160 400 1000 2500 6250 16000 Frequency Response Web Site “” © 2004 Mixed Signal Integration 1 MSGEQ7 Seven Band Graphic Equalizer Data Sheet Electrical Characteristics_________ ( VDD = +5.0V, T = 25oC) PARAMETER SYMBOL CONDITIONS MIN TYP MAX DC Specifications Operating Voltage VDD 2.7 5.0 5.5 Supply Current IDD 1 Mohm Load on Output 0.5 0.8 1.0 Output Drive IO 1 Output Impedance ZO 700 Output Offset VOS 600 Band Offs [ … ]


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