{"id":36468,"date":"2020-09-30T20:24:16","date_gmt":"2020-09-30T12:24:16","guid":{"rendered":"\/blog\/?p=36468"},"modified":"2021-01-15T16:25:53","modified_gmt":"2021-01-15T08:25:53","slug":"introduction-of-msgeq7","status":"publish","type":"post","link":"https:\/\/www.seeedstudio.com\/blog\/2020\/09\/30\/introduction-of-msgeq7\/","title":{"rendered":"What is MSGEQ7? Features and Projects"},"content":{"rendered":"\n

Have you ever heard of MSGEQ? MSGEQ7 is a graphic equalizer chip that can divide the audio frequency spectrum into seven frequency bands. In this blog, we will be addressing some of the features it has and how you can use it in projects!<\/p>\n\n\n\n

\"What<\/figure><\/div>\n\n\n\n
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What is a MSGEQ7?<\/h3>\n\n\n\n

MSGEQ7 is a graphic equalizer chip that manages the process of sampling and measuring the audio frequencies you provide it automatically. The chip power supply can be between 2.7 and 5.5 volts, of which 5 volts can provide the best performance. <\/p>\n\n\n\n

How it works is that it’ll take the input and run it through a bandpass filter, which eliminates all the frequencies except for the particular frequency band assigned to that filter. Thus, the timing of getting the code and managing to move through the frequencies is crucial. <\/p>\n\n\n\n

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Ref: msgeq7<\/a> <\/figcaption><\/figure><\/div>\n\n\n\n
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Specifications of MSGEQ7<\/h2>\n\n\n\n

Pin function of MSGEQ7<\/h3>\n\n\n\n
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Ref: Pin of msgeq7 <\/a><\/figcaption><\/figure><\/div>\n\n\n\n
VDD<\/strong><\/td>Positive Power Supply Typically 5 Volts.<\/td><\/tr>
VSS<\/strong><\/td>Negative Power Supply Typically 0 Volts.<\/td><\/tr>
OUT<\/strong><\/td>Multiplexed DC Output.<\/td><\/tr>
STROBE <\/strong><\/td>Channel Selection Pin.<\/td><\/tr>
IN<\/strong><\/td>Audio Input.<\/td><\/tr>
GND Internally<\/strong><\/td>Generated Ground Reference Typically 2.5V<\/td><\/tr>
RESET<\/strong><\/td>Resets Multiplexor.<\/td><\/tr>
CKIN<\/strong><\/td>Clock Oscillator Pin.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
<\/div>\n\n\n\n

Features of MSGEQ7<\/h3>\n\n\n\n