BD3870FS ROHM Co. Ltd., BD3870FS Datasheet - Page 2

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

●Absolute maximum ratings (Ta=25°C)
●Operating voltage range
●Electrical characteristics (Ta=25°C, VCC=8V, f=1kHz, Vi=200mVrms, RL=10kΩ, Rg=600Ω, Input Gain=0dB (BD3870FS,
*
*
●
BD3872FS only), Input Gain=24dB (BD3871FS only), Input Gain=18dB (BD3873FS only), Volume=0dB, Bass=0dB,
Treble=0dB, Surround=OFF, Loud Speaker Equalizer=OFF (BD3872FS only), unless otherwise noted)
Power Supply Voltage
Power Dissipation
Operating
Temperature Range
Storage Temperature
Range
1
2
It must function normally at Ta＝25°C.
Operating Voltage
Reduced by 8.0 mW/°C at 25°C or higher, when installed on the standard board (Size: 70×70×1.6mm).
Reduced by 9.5 mW/°C at 25°C or higher, when installed on the standard board (Size: 70×70×1.6mm).
Circuit Current
Total Output Voltage Gain
Total Harmonic Distortion ratio
Maximum Output Voltage
Total Output Noise Voltage
Total Residual Noise Voltage
Cross-talk between Channels
Cross-talk between Selectors
Input Impedance
Output Impedance
Volume Control Range
Maximum Volume Attenuation
Volume Input Impedance
Prameter
Prameter
Range
Parameter
Symbol
Symbol
Vcc
Topr
Tstg
Vcc
Pd
BD3870FS
-55 to +125
BD3870FS
-25 to +75
4.5 to 9.5
Symbol
Vmno
Vmin
THD
CTC
Rout
Vom
CTS
Rvin
Vno
800 *
VRI
Rin
Gv
IQ
10
1
Min.
1.6
-90
22
16
35
70
39
-2
-
-
-
-
-
-
-
-
-
-55 to +125
BD3871FS
BD3871FS
-25 to +75
4.5 to 9.5
800 *
10
2/16
Limits
0.01
Typ.
100
-80
-80
-87
2.1
4.5
4.5
24
18
40
50
56
8
0
-
-
1
Limits
Limits
Max.
130
-70
-70
-84
-90
0.1
-55 to +125
21
26
20
15
80
15
65
50
73
BD3873FS
BD3873FS
-25 to +75
2
-
4.5 to 9.5
800 *
10
1
µVrms
µVrms
Vrms
Unit
mA
dB
dB
dB
kΩ
dB
dB
kΩ
%
Ω
-55 to +125
BD3872FS
BD3872FS
-25 to +75
4.5 to 9.5
At no signal
BD3870FS, BD3872FS
Gv=20log(VOUT/VIN)
BD3871FS
Gv=20log(VOUT/VIN)
BD3873FS
Gv=20log(VOUT/VIN)
BW=400 to 30kHz
THD=1%
BW=400 to 30kHz
BD3870FS, BD3872FS
Rg=0Ω, BW=IHF-A
BD3871FS, BD3873FS
Rg=0Ω, BW=IHF-A
Rg=0Ω, BW=IHF-A
Volume=-∞dB
Rg=0Ω, BW=IHF-A
VOUT=1Vrms
Rg=0Ω, BW=IHF-A
BD3870FS, BD3871FS,
BD3873FS
BD3872FS
VR=20log(VOUT/VIN)
BW=IHF-A
950 *
10
2
Condition
Unit
mW
Unit
°C
°C
V
V