BH3856 Ver la hoja de datos (PDF) - ROHM Semiconductor

Número de pieza

componentes Descripción

Fabricante

BH3856

2-wire serial sound control IC

ROHM Semiconductor 

Audio ICs

BH3856S / BH3856FS

!Operation notes

(1) Operating power supply voltage range

As long as the operating power supply voltage and ambient temperature are kept within the specified range, the basic

circuits are guaranteed to function, but be sure to check the constants as well as the element settings, voltage settings,

and temperature settings.

(2) Bass filter

BIN

R1

5.1kΩ

C1

BVO

0.1µF

C2

BVN

0.1µF

R2

50kΩ

−3dB

IC internal BIAS

(

1

2

Vcc )

IC internal BIAS

(

1

2

Vcc )

Frequency f: (Hz)

f0

∆f

∗B.P.F. composed of multiple feedback active f0 can be varied according to the value of C.BIN

(theoretical equation)

f0 =

1

2π

×

1

1

2

R1R2C1C2

1

Q

1

2 × (C1 + C2) −1

R2C1C2

G = R2 × 1 + C1 −1

5kΩ

C2

Note : Filter gain is calculated using the equation on the left. Total output

gain is the sum of the gain for each of the internal circuits.

(When R1 = 5.1kΩ, R2 = 50kΩ, C1 = C2 = C)

f0 = 1.0 × 10−5

C

Q 1.57 G = 5.0

Share Link: