BH3868BFS Rohm Semiconductor, BH3868BFS Datasheet - Page 21

• Manufacturer Part Number: BH3868BFS
• Description: IC AUDIO SOUND PROCESSR SSOP-A32
• Manufacturer: Rohm Semiconductor
• Type: Volume Controlr

Specifications of BH3868BFS

• Applications: Automotive Audio
• Mounting Type: Surface Mount
• Package / Case: 32-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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