BD3870FS-E2 Rohm Semiconductor, BD3870FS-E2 Datasheet - Page 5

• Manufacturer Part Number: BD3870FS-E2
• Description: IC SOUND PROCESSOR SSOP-A24
• Manufacturer: Rohm Semiconductor
• Series: -r
• Type: Audio Processorr

Specifications of BD3870FS-E2

• Applications: Audio Systems
• Mounting Type: Surface Mount
• Package / Case: 24-SOP
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

●Block diagram, application circuit, pin assignment (BD3870FS, BD3871FS, BD3873FS)
●Pin description (BD3870FS, BD3871FS, BD3873FS)
BD3870FS,BD3871FS,BD3872FS,BD3873FS
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Pin No. Pin Name
10
11
12
1
2
3
4
5
6
7
8
9
FILTER
SEL2
SEL1
VIN1
VIN2
GND
A1
A2
B1
B2
C1
C2
1ch volume input pin
2ch volume input pin
2ch input selector output pin
1ch input selector output pin
1ch input pin A
2ch input pin A
1ch input pin B
2ch input pin B
1ch input pin C
2ch input pin C
1/2 VCC pin
Ground pin
0dB
～
-87dB
-∞
0.33μ
24
Vcc/2
1
0.0022μ 0.0022μ
fc=8k Hz
Treble1
23
Vcc/2
2
Description
Treble２
fc=8kHz
22
3
10μ
10μ
0.1μ
21
4
f
0
390k
Bass2
=80Hz
5.6k
0.1μ 0.1μ
20
A1
5
10μ
50k
A2
19
6
Fig.2
5/15
f
10μ
0
390k
Bass1
50k
=80Hz
Pin No. Pin Name
18
0.1μ
5.6k
B1
13
14
15
16
17
18
19
20
21
22
23
24
7
10μ
50k
OUT1
17
B2
8
10μ
BOUT1
BOUT2
10μ
OUT2
OUT1
BNF1
BNF2
50k
TNF2
TNF1
VCC
CAP
SC
SI
OUT2
16
C1
9
Vcc/2
50k
10μ
10μ
4.7k
VCC
Serial clock input pin
Serial data input pin
Power supply pin
2ch output pin
1ch output pin
1ch bass filter setting pin
1ch bass filter setting pin
2ch bass filter setting pin
2ch bass filter setting pin
2ch treble filter setting pin
1ch treble filter setting pin
Time constant setting pin for absorbing
surround switching shock sound
15
10
C2
Unit: Resistance =Ω, Capacitor = F
10μ
50k
4.7k
LATCH
DATA
Vcc/2
14
11
Logic
47μ
CLOCK
Description
13
12
Vcc/2
Technical Note
2010.10 - Rev.A