BH3857 Rohm, BH3857 Datasheet - Page 11

• Manufacturer Part Number: BH3857
• Description: Audio sound controller
• Manufacturer: Rohm

FAttached components
(1)
(2)
f
(Theoretical formula)
674
S A band-pass filter is constructed using a multiple-feedback type active filter.
0
Audio ICs
can be changed using the C valve.
Input buffer
Bass filter
Note: Set C
S The input impedance is 47k .
S A buffer if R and C
S The gain can be set by R and the 20k .
G
VC
= (R ) 20k ) / R
gain) depending on the frequency band used.
2
(input coupling) and C
1
are not present.
BH3857AFV
1
(used to set the