M62421FP 查看數據表（PDF） - MITSUBISHI ELECTRIC

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M62421FP

Sound controller

MITSUBISHI ELECTRIC  

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FUNCTION EXPLANATION

MITSUBISHI SOUND PROCESSOR

M62421SP/FP

SOUND CONTROLLER

( 1 ) EQUIVALENT CIRCUIT OF TONE CONTROL

The resonance circuit is able to construct by using built-in

amplifier for simulated inductor. (Shows the constant as

follow)

Inside IC

R3

C1

Center frequency

f0 = 1 / 2π C1 • C2 • R1 • R2 [Hz]

Q = ( C2 • R2 ) / ( C1 • R1 )

R1

C2

(=1.8KΩ)

( EX ) BASS band ( f=..100Hz )

R1=1.8KΩ , R2=117KΩ

C1=0.47µ , C2=0.022µ

SIMAMP

R2

(=117KΩ)

ref

FIG1. The circuit used simulated inductor.

ref

L

C1

R3

FIG2. The equivalent circuit used L.

FIG1 is equal to FIG2.

The following relation is concluded.

L=C2 • ER1 • ER2

MITSUBISHI

ELECTRIC

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