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MSGEQ7 Datasheet(PDF) 1 Page - Mixed Signal Integration

Part # MSGEQ7
Description  Seven Band Graphic Equalizer
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Manufacturer  MSI [Mixed Signal Integration]
Direct Link  https://www.mix-sig.com
Logo MSI - Mixed Signal Integration

MSGEQ7 Datasheet(HTML) 1 Page - Mixed Signal Integration

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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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