BD3870FS ROHM Co. Ltd., BD3870FS Datasheet - Page 3

• Manufacturer Part Number: BD3870FS
• Description: Audio Sound Processor For Home Audio
• Manufacturer: ROHM Co. Ltd.

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Communication Industrial is used.
Phase relation between Input/Output signal terminals is the same.
Note: This IC is not designed to be radiation-resistant.
For measurement, VP-9690A (Average value wave detection, Effective value display) IHF-A filter by Matsushita
Bass Boost Gain
Bass Cut Gain
Bass Step Resolution
Treble Boost Gain
Treble Cut Gain
Treble Step Resolution
Surround In-phase Gain
Surround Single-phase Gain
Surround Opposite-phase Gain
Loud Speaker Equalizer Gain
(BD3872FS only)
Parameter
Symbol
Vsur1
Vsur2
Vsur3
GBB
GBC
GTB
GTC
Seq
BR
TR
Min.
-16
-14
-16
4.3
12
10
12
-2
8
3
-
-
3/16
Limits
Typ.
-14
-12
-14
6.3
14
12
14
10
0
2
2
5
Max.
-12
-10
-12
8.3
16
14
16
12
2
7
-
-
Unit
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
GB=20log(VOUT/VIN)
GB=20log(VOUT/VIN)
BD3870FS, BD3871FS,
BD3873FS
BD3872FS
BD3870FS, BD3871FS,
BD3873FS
BD3872FS
2ch in-phase inputs
1ch input, 1ch grounded
2ch opposite-phase inputs
f=10kHz
Condition