BD3860K Datasheet, PDF (4/27 Pages) Rohm – Built-in BBE Audio sound controller

Audio ICs
!Pin equivalent circuit and description
Pin No. Pin name Pin voltage
Equivalent circuit
41
A1
42
B1
43
C1
44
D1
1
A2
2
B2
3
C2
4
D2
VCC
4.5V
GND
VCC
40
SEL1
39
SEL2
4.5V
GND
VCC
36
VIN1
38
VIN2
4.5V
GND
35
LOUD1
37
LOUD2
4.5V
VCC
VIN1, VIN2
GND
−30dB
tap
BD3860K
Pin description
A pin for inputting a sound signal.
It is suitable for input of CD, MD,
tuner and tape.
Connect this pin to a front stage
circuit through a coupling
capacitor.
A pin for outputting a sound signal,
which has been selected by an input
selector and amplified by input gain.
Connect this pin to a rear stage
circuit through a coupling capacitor
between the VIN1 and VIN2 pins.
A pin for inputting a sound signal to
main volume.
The input impedance is 60kΩ (upon
typical setting).
Connect this pin to a front stage
circuit through a coupling capacitor
between the SEL1 and SEL2 pins
circuit.
A pin for setting the loudness
frequency characteristics and gain.
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