BH3868BFS Rohm Semiconductor, BH3868BFS Datasheet - Page 21
BH3868BFS
Manufacturer Part Number
BH3868BFS
Description
IC AUDIO SOUND PROCESSR SSOP-A32
Manufacturer
Rohm Semiconductor
Type
Volume Controlr
Datasheet
1.BH3868BFS.pdf
(28 pages)
Specifications of BH3868BFS
Applications
Automotive Audio
Mounting Type
Surface Mount
Package / Case
32-SSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
BH3868BFS-E2
Manufacturer:
SAGAMI
Quantity:
20 000
Audio ICs
! ! ! ! BBE
This IC is equipped with BBE to achieve the clear sound. The characteristic can be changed by an external constant. If
any constant other than recommendable ones is used, please ask BBE for confirmation.
Frequency setting
! ! ! ! Tone control
Setting of bass frequency
23pin
10pin
f
C
=
C
2π × 30k × C (Hz)
Equivalent Circuit
30k
f
f
f
C1
C2
C3
1
=
=
=
f
C3
C1=Capacity between 6pin−7pin, and 27pin−26pin.
C2=Capacity between 8pin−9pin, and 25pin−24pin.
2π × 21.5k × C1
2π × 21.5k × C2
2π × 21.5k × C3
is fixed at the inside.
+
−
1
1
1
Gain
=
=
=
2π × 56.2k × 47p
2π × 21.5k × 0.0033µ
2π × 21.5k × 0.033µ
f
C1
1
1
1
Gain
Gain
f
C2
60.3kHz
224Hz
2.24kHz
f
C
f
C3
3dB
3dB
Freq.
BH3868BFS
Freq.
21/27