Rohm BD3403FV Sound processors with built-in 3-band equalizer Datasheet

Sound Processors for BOOM BOX / Mini-component Stereo
Sound Processors
with Built-in 3-band Equalizers
BD3403FV, BD3861FS, BD3883FS
No.10086EAT01
●Description
The Sound Processor has a built-in 3 Band Equalizer and can be controlled with a 2-wire serial. It is suited for a sound
quality design which incorporates various functions, ranging from source selectors, such as BOOM BOX, Mini-audio
systems and Micro-audio systems to preamplifiers at the front stage of the power amp.
●Features
1) High S/N, achieved by implementing 2-stage configuration of Front Volume and Rear Volume.
2) Provides surround and rear volume with Soft-switch to reduce a shock sound during switching functions(BD3883FS).
3) Volume and tone implemented with the resistance ladder circuit
(to achieve high performance with low noise and low distortion).
4) Uses the BiCMOS process that achieves low-consumption current, which contributes to an energy-saving design.
Using the BiCMOS process, has the advantage in quality over the scaling down of the internal regulators and heat controls.
5) SSOP-A32 and SSOP-B40 are used for the packages. Input pins and output pins are organized and separately laid
out so as to keep the signal flows in one direction which consequently, simplify pattern layout of the set board and
decrease the board dimensions.
●Applications
BOOM BOX, mini-audio systems, and micro-audio systems.
●Product lineup
Parameter
Operating Voltage Range
Equalizer
Front Volume
Rear Volume
BD3403FV
BD3861FS
BD3883FS
6.5 to 9.5V
6.5 to 9.5V
6.5 to 9.5V
3 band
3 band
3 band
(BASS, MIDDLE, TREBLE) (BASS, MIDDLE, TREBLE) (BASS, MIDDLE, TREBLE)
0 to -50dB/2dB step
0 to -30dB/2dB step
0 to -87dB/1dB step, -∞dB
-50 to -70dB/4dB step, -∞dB
0 to -59dB/1dB step, -∞dB 0 to -59dB/1dB step, -∞dB
0, -10dB
Input Gain
0 to 26dB/2dB step
0 to 26dB/2dB step
0, 6, 12, 16, 20, 23, 26, 29dB
Microphone Input
○
○

Surround
○

○
Package
SSOP-B40
SSOP-A32
SSOP-A32
●Absolute maximum ratings (Ta=25℃)
Prameter
Symbol
Ratings
BD3403FV
BD3861FS,BD3883FS
Unit
Power Supply Voltage
Vcc
10
10
V
Power Dissipation
Pd
900*1
950*2
mW
Input Voltage Range
Vin
GND-0.3 to VCC+0.3
GND-0.3 to VCC+0.3
V
Operating Temperature Range
Topr
-25 to +75
-25 to +75
℃
Storage Temperature Range
Tstg
-55 to +125
-55 to +125
℃
*1
Reduced by 9.0 mW/℃ over 25℃, when installed on the standard board (size: 70×70×1.6mm) for (BD3403FV).
*2
Reduced by 9.5 mW/℃ over 25℃, when installed on the standard board (size:70×70×1.6mm) for (BD3861FS,BD3883FS).
●Operating voltage range
Prameter
Symbol
Ratings
Unit
Vcc
6.5 to 9.5
V
BD3403FV
BD3861FS
BD3883FS
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© 2010 ROHM Co., Ltd. All rights reserved.
1/15
2010.10 - Rev.A
Technical Note
BD3403FV,BD3861FS,BD3883FS
IQ
-
16.0
30.0
mA
At no signal
Output Voltage Gain
GV
-1.5
0.0
1.5
dB
GV20log(VOUT/VIN)
Total Harmonic Distortion ratio
THD
-
0.02
0.08
%
400 to 30kHz BPF
Maximum Output Voltage
VOM
2.0
2.5
-
Vrms
THD1%
Output Noise Voltage
VNO
-
1.8
6.0
µVrms
Rg0kΩ, IHF-A
CT
-
3.0
9.0
µVrms
GV6
5
6
7
dB
Input Voltage Gain 1
GvmaxI1
-1
*2
+1
dB
Input Voltage Gain 2
GvmaxI2
-1.5
*2
+1.5
dB
Input Gain Switching Step
Input Total Harmonic
Distortion ratio
Input Maximum Output
Voltage
GvmaxIst
-
2
-
dB
Rg0kΩ, IHF-A
VIN200mVrms
GV620log(VOUT/VIN)
VIN200mVrms, From 0 to 10dB
GvmaxI1=20log(VOUT/VIN)
VIN200mVrms
From 12 to 26dB
GvmaxI220log(VOUT/VIN)
From 0 to 26dB
THDI
-
0.02
0.08
%
400 to 30kHz BPF
VOMI
2.0
2.5
-
dB
THD1%
Cross-talk between Selectors
CS
-
-80.0
-70.0
dB
Input Impedance
RI
35.0
50.0
65.0
kΩ
E Input SW Attenuation
GRE
-
-20.0
-15.0
dB
Input Volume 1
GIV1
-2
*3
+2
dB
GIVst1
-
2
-
dB
GOV
-1
*1
+1
dB
Output Switching Step
GOVst
-
1
-
dB
From 0 to –59dB
Gov=20log(VOUT/VIN)
From 0 to –59dB
Maximum attenuation
GminO
-
-
-90.0
dB
IHF-A, GminO=20log(VOUT/VIN)
Surround Gain
CH1→CH2
Gsur1
5
7
9
dB
VIN=200mVrms, f=1kHz
Surround Gain
CH2→CH1
Gsur2
5
7
9
dB
VIN=200Vrms, f=1kHz
Bass Boost Gain
GBB
-2
*1
+2
dB
Bass Cut Gain
GBC
-2
*1
+2
dB
Bass Switching Step
GBST
-
2
-
dB
Middle Boost Gain
GMB
-2
*1
+2
dB
Middle Cut Gain
GMC
-2
*1
+2
dB
Middle Switching Step
GMST
-
2
-
dB
Treble Boost Gain
GTB
-2
*1
+2
dB
Treble Cut Gain
GTC
-2
*1
+2
dB
Treble Switching Step
GTST
-
2
-
dB
Microphone Voltage Gain
GMIC
4.5
6.0
7.5
dB
TOTAL
Circuit Current
OUTPUT INPUT
VOLUME VOLUME
Condition
SURROUND
●Electrical characteristics
◎BD3403FV
VCC=9V, f=1KHz, VIN=1Vrms, Rg=600Ω, RL=10kΩ, Ta=25℃, Input Gain=0dB, VOL=0dB,
Bass, Middle, Treble=0dB, Surround=OFF, unless otherwise noted.
Limits
Parameter
Symbol
Unit
Min.
Typ.
Max.
Cross-talk between Channels
MIC
TREBLE
MIDDLE
BASS
INPUT
6dBSW Gain
Volume Switching Step 1
Output Volume
Rg=0kΩ, IHF-A
CS20log(VOUT/VIN)
RI51k×VOUT/ (VIN-VOUT)
GRE20log(VOUT/VIN)
From 0 to -30dB
GIV120log(VOUT/VIN)
From 0 to -30dB
VIN=200mVrms, f=90Hz,
From 0 to 14dB
GBB=20log(VOUT/VIN)
VIN=200mVrms, f =90Hz,
From –14 to 0dB
GBC=20log(VOUT/VIN)
VIN=200mVrms, f=90Hz
VIN=200mVrms, From 0 to 12dB
GMB=20log(VOUT/VIN)
VIN=200mVrms, From -12 to 0dB
GMC=20log(VOUT/VIN)
VIN=200mVrms
VIN=200mVrms, f=10kHz
From 0 to 12dB
GTB=20log(VOUT/VIN)
VIN=200mVrms, f=10kHz
From -12 to 0dB
GTC=20log(VOUT/VIN)
VIN=200mVrms, f=10kHz
VIN=200mVrms
GMIC=20log(VOUT/VIN)
*1 *2 Typ. is set to the value descrived in condition.
Min. and Max. mean the error.
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© 2010 ROHM Co., Ltd. All rights reserved.
2/15
2010.10 - Rev.A
Technical Note
BD3403FV,BD3861FS,BD3883FS
BD3861FS
VCC=9V, f=1KHz, VIN=1Vrms, Rg=600Ω, RL=10kΩ, Ta=25℃, Input Gain=0dB, VOL=0dB,
Bass, Middle, Treble=0dB, unless otherwise noted.
Limits
Parameter
Symbol
Unit
Min.
Typ.
Max.
Circuit Current
TOTAL
Output Voltage Gain
INPUT
INPUT
VOLUME
OUTPUT
VOLUME
BASS
MIDDLE
TREBLE
13.0
26.0
mA
At no signal
GV
-1.5
0.0
1.5
dB
GV=20log(VOUT/VIN)
THD
-
0.02
0.08
%
400 to 30kHz BPF
Maximum Output Voltage
VOM
2.0
2.5
-
Vrms
Output Noise Voltage
VNO
-
8.0
15.0
µVrms
CT
-
-80
-70
dB
GV6
5
6
7
dB
Input Voltage Gain 1
GvmaxI1
-1
*1
+1
dB
Input Voltage Gain 2
GvmaxI2
-1.5
*1
+1.5
dB
Input Gain Switching Step
GvmaxIst
-
2
-
dB
Rg=0kΩ, IHF-A
VIN=200mVrms
GV6=20log(VOUT/VIN)
VIN=200mVrms
From 0 to 10dB
GvmaxI1=20log(VOUT/VIN)
VIN=200mVrms, From 12 to 26dB
GvmaxI2=20log(VOUT/VIN)
From 0 to 26dB
Input Total Harmonic Distortion
THDI
-
0.02
0.08
%
400 to 30kHz BPF
Input Maximum Output Voltage
VOMI
2.0
2.5
-
dB
THD=1%
6dB SW Gain
MIC
-
Total Harmonic Distortion
Cross-talk between Channels
*1
IQ
Condition
THD=1%
Rg=0kΩ, IHF-A
Cross-talk between Selectors
CS
-
-80.0
-70.0
dB
Rg=0kΩ, IHF-A
CS=20log(VOUT/VIN)
Input Impedance
RI
35.0
50.0
65.0
kΩ
RI=51k×VOUT/ (VIN-VOUT)
E Input SW Attenuation
GRE
-
-20.0
-15.0
dB
Input Volume 1
GIV1
-2
*1
+2
dB
Input Volume 2
GIV2
-3
*1
+3
dB
Volume Switching Step 1
GIVst1
-
2
-
dB
GRE=20log(VOUT/VIN)
From 0 to -50dB
GIV1=20log(VOUT/VIN)
From -54 to –70dB
GIV2=20log(VOUT/VIN)
From 0 to -50dB
Volume Switching Step 2
GIVst2
-
4
-
dB
From -54 to –70dB
Maximum attenuation
GminI
-
-
-90.0
dB
Output Volume
GOV
-1
*1
+1
dB
Output Switching Step
GOVst
-
1
-
dB
Maximum attenuation
GminO
-
-
-90.0
dB
Bass Boost Gain
GBB
-2
*1
+2
dB
Bass Cut Gain
GBC
-2
*1
+2
dB
Bass Switching Step
GBST
-
2
-
dB
IHF-A, GminI=20log(VOUT/VIN)
From 0 to –59dB
Gov=20log(VOUT/VIN)
From 0 to –59dB
IHF-A
GminO=20log(VOUT/VIN)
VIN=200mVrms, f=90Hz,
From 0 to 14dB
GBB=20log(VOUT/VIN)
VIN=200mVrms, f =90Hz,
From -14 to 0dB
GBC=20log(VOUT/VIN)
VIN=200mVrms, f=90Hz
Middle Boost Gain
GMB
-2
*1
+2
dB
Middle Cut Gain
GMC
-2
*1
+2
dB
Middle Switching Step
GMST
-
2
-
dB
Treble Boost Gain
GTB
-2
*1
+2
dB
Treble Cut Gain
GTC
-2
*1
+2
dB
Treble Switching Step
GTST
-
2
-
dB
Microphone Voltage Gain
GMIC
4.5
6.0
7.5
dB
VIN=200mVrms, From 0 to 12dB
GMB=20log(VOUT/VIN)
VIN=200mVrms, From -12 to 0dB
GMC=20log(VOUT/VIN)
VIN=200mVrms
VIN=200mVrms,
f=10kHz From 0 to 12dB
GTB=20log(VOUT/VIN)
VIN=200mVrms,
f=10kHz From -12 to 0dB
GTC=20log(VOUT/VIN)
VIN=200mVrms, f=10kHz
VIN=200mVrms
GMIC=20log(VOUT/VIN)
Typ. is set to the value descrived in condition.
Min. and Max. mean the error.
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© 2010 ROHM Co., Ltd. All rights reserved.
3/15
2010.10 - Rev.A
Technical Note
BD3403FV,BD3861FS,BD3883FS
TOTAL
BD3883FS
Ta=25℃, VCC=8V, f=1kHz, Vi=200mVrms, RL=10kΩ, Rg=600Ω,
Input Selector=Ach, Input Gain=0dB, Volume=0dB, Bass=0dB, Middle=0dB, Treble=0dB,
Surround=OFF, RECOUT=OFF, unless otherwise noted.
Limits
Parameter
Symbol
Unit
Min.
Typ.
Max.
Circuit Current
IQ
-
8
21
mA
Total Output Voltage Gain
Gv
-2
0
2
dB
Total Harmonic Distortion
THDO
-
0.01
0.1
%
Maximum Output Voltage
Vomaxo
1.6
2.1
-
Vrms
Vno
-
2
10
µVrms
Total Output Noise Voltage
Vmno
-
4
15
µVrms
Cross-talk between Channels
CTC12
-
-80
-70
dB
Rin
70
100
130
kΩ
Output Impedance
Rout
-
-
50
Ω
Cross-talk between Selectors
CTS1
-
-80
-70
dB
VOUT=1Vrms
Rg=0Ω, BW=IHF-A
Volume Control Range
VRI
-90
-87
-84
dB
BW=IHF-A ,Vout=1Vrms
Volume Setting Error 1
VEI1
-2
0
2
dB
Volume Setting Error 2
VEI2
-3
0
3
dB
Maximum Attenuation
Vmin
-
-
-90
dB
Volume Input Impedance
Rvin
39
56
73
kΩ
Total Residual Noise Voltage
Bass Gain
Gb
Bass Gain Setting Error
BE
MIDDLE
Middle Gain
Gm
Middle Gain Setting Error
ME
TREBLE
Treble Gain
Gt
Treble Gain Setting Error
TE
-2
0
2
dB
SURROUND
VOLUME
INPUT
Input Impedance
Surround In-phase Gain
Vsur1
-2
0
2
dB
Surround Single-phase Gain
Vsur2
4.3
6.3
8.3
dB
Opposite-phase Gain
Vsur3
8
10
12
dB
BASS
Condition
-17.5 to +17.5
-2.5
0
0
BW=400 to 30kHz
THD=1%
BW=400 to 30kHz
Rg=0Ω, Vol=-∞dB
BW=IHF-A, REAR ATT=-10dB
Rg=0Ω, Vol=0dB
BW=IHF-A
Rg=0Ω, BW=IHF-A
VOUT=1Vrms
0 to -53dB,BW=IHF-A
VOUT=1Vrms
-54 to –87dB,BW=IHF-A
VOUT=1Vrms
BW=IHF-A VOUT=1Vrms
dB
-2.5
-14 to +14
-2
At no signal
dB
dB
-2
-14 to +14
dB
dB
AC-grounding
● This IC is not designed to be radiation-resistant.
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© 2010 ROHM Co., Ltd. All rights reserved.
4/15
2010.10 - Rev.A
Technical Note
BD3403FV,BD3861FS,BD3883FS
●Control signal specifications
1. Signal Timing Conditions
・Data is read on the rising edge of the clock.
・Latch is read on the falling edge of the clock.
・Latch signal must terminate with the LOW state.
・To avoid malfunctions, clock and data signals must terminate with the LOW state.
1byte=8bit
SC
(CLOCK)
90%
tsu
90%
10%
thd
SI
DATA
LATCH
90%
twd
ts
th
90%
DATA
90%
90%
10%
10%
twc
twc
tsd
ts1
90%
90%
twd
DATA
10%
10%
thd
10%
th1
90%
tw1
LATCH
Low
Fig.1
Parameter
Limits
Symbol
Min.
Typ.
Max.
Unit
Minimum Clock Width
twc
2.0
-
-
µs
Minimum Data Width
twd
2.0
-
-
µs
Minimum Latch Width
tw1
2.0
-
-
µs
Data Set-up Time (DATACLK)
Tsd
1.0
-
-
µs
Data Hold Time (CLKDATA)
Thd
1.0
-
-
µs
Latch Set-up Time (CLKLATCH)
ts1
1.0
-
-
µs
Latch Hold Time (DATALATCH)
th1
1.0
-
-
µs
Latch Low Set-up Time
ts
1.0
-
-
µs
Latch Low Hold Time
th
1.0
-
-
µs
2. Voltage Conditions for Control Signals (BD3403FV, BD3861FS)
Parameter
Limits
Condition
Min.
Typ.
Max.
Unit
“H” Input Voltage
Vcc=6.5 to 9.5V
2.6
-
5.5
V
“L” Input Voltage
Vcc=6.5 to 9.5V
0
-
1.1
V
3. Voltage Conditions for Control Signals (BD3883FS)
Parameter
Limits
Condition
Min.
Typ.
Max.
Unit
“H” Input Voltage
Vcc=6.5 to 9.5V
2.2
-
5.5
V
“L” Input Voltage
Vcc=6.5 to 9.5V
0
-
1.0
V
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© 2010 ROHM Co., Ltd. All rights reserved.
5/15
2010.10 - Rev.A
Technical Note
BD3403FV,BD3861FS,BD3883FS
●Control data format list
(BD3403FV)
Address 1
D10
D11
D12
OUTPUT Volume 1
Address 2
D20
D13
D21
D22
D31
D32
Input Selector
Address 4
D40
D23
D41
D42
D24
D33
D34
6dB SW
0: 0dB
1:+6dB
IN E MUTE
0:OFF
1:ON
D43
D51
D52
D11
D12
OUTPUT Volume
Address 2
D20
D25
D44
D53
D54
D35
D14
D45
D22
D23
D24
1
D55
D31
D32
D15
Input Selector
Address 4
D40
D41
D42
D33
D34
IN E MUTE
0:OFF
1:ON
D43
D44
Address 5
D50
D51
D52
Middle/Treble
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D53
D54
0: Middle
1: Treble
6/15
Function Select
0
1
D47
Function Select
0
1
D57
Function Select
1
1
D17
Function Select
0
0
D25
D26
D35
D27
Function Select
1
0
D36
0
D45
0: Input
Gain
1: Bass
Input Gain/Bass
D37
D16
0
6dBSW
0: 0dB
1:+6dB
0
D56
0
INPUT Volume
Address 3
D30
Function Select
1
D46
OUTPUT Volume 2
D21
D27
D36
0
0: Middle
1: Treble
D13
D17
D26
0
0: Input
Gain
1: Bass
Middle/Treble
(BD3861FS)
Address 1
D10
D16
Function Select
0
0
Surround
0:OFF
1:ON
Input Gain/Bass
Address 5
D50
D15
OUTPUT Volume 2
INPUT Volume
Address 3
D30
D14
D37
Function Select
0
1
D46
1
D55
D47
Function Select
0
1
D56
0
D57
Function Select
1
1
2010.10 - Rev.A
Technical Note
BD3403FV,BD3861FS,BD3883FS
(BD3883FS)
・Basic Configuration of Control Data Format
 Data input direction
MSB
D9
D8
D7
LSB
D6
Data
D5
D4
D3
D2
D1
Data
Select Address
・Control Data Formats
 Data input direction
Select Address
D9
D8
Data(1)
D0
D7
D6
Input Gain
D9
D8
Data(2)
D5
D7
D8
Data(3)
D6
D5
D7
D8
Data(4)
D2
D6
D5
D1
D0
0
0
D2
D1
D0
*
0
1
D2
D1
D0
1
0
Treble fc
D4
D3
Front Volume B
Bass Gain
D9
D3
Input Selector
Front Volume A
D9
D4
D4
D3
Treble Gain
D7
D6
Middle Gain
D5
D4
D3
D2
D1
D0
Time
Constan
t Select
REC
OUT
Surroun
d
Rear
Volume
1
1
○* indicates 0 or 1.
・By changing the setting of Select Address, four different control formats are selectable. (BD3883FS)
・At power-on sequence, initialize all data.
Example:
 Data input direction
MSB
LSB MSB
Data(1)
L
Data(2)
LSB MSB
L
Data(3)
LSB
MSB
L
Data(4)
LSB
L
“L” means a “latch.”
・After power-on, for the second and subsequent times, only the necessary data can be selected for setting.
Example: When changing the volume:
 Data input direction
MSB
LSB
Data(2)
L
“L” means a “latch.”
・RECOUT, Surround and Rear Volume in Data(4) are Soft-switched using time constants. (BD3883FS)
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© 2010 ROHM Co., Ltd. All rights reserved.
7/15
2010.10 - Rev.A
1
2
0dB
～
-30dB
Vcc/2 Vcc/2
Surround
10µ
10µ
3
4
Treble
-12dB～+12dB
2dB/STEP
Treble1 Treble2
fc=10kHz fc=10kHz
37
5
6
25K
10µ
33
7
25K
25K
10µ
8
25K
25K
10µ
9
25K
25K
10µ
10µ
11
25K
25K
10µ
12
25K
25K
29
Bass2
fo=90Hz
30
0～26dB
2dB/STEP
25K
10
3.3K
Bass
-14dB～+14dB
2dB/STEP
25K
31
Bass1
fo=90Hz
32
0～26dB
2dB/STEP
Middle1
fo=1kHz
34
Middle
-12dB～
+12dB
2dB/STEP
25K
35
Middle2
fo=1kHz
36
+
38
+
39
+
40
+
2.2K
+
0.15µ 0.15µ
+
1µ
3.3K
3.3K
3.3K
4700p 4700p
0.015µ 0.015µ 0.015µ 0.015µ 0.15µ 0.15µ
10µ
13
25K
25K
28
10µ
26
14
25K
25K
15
25K
25K
0dB～-59dB
1dB/STEP
MUTE
27
10µ
10µ
10µ
4.7K
10µ
4.7K
25
16
100K
10µ
24
10µ
17
Vcc/2
47µ
+
+
+
8/15
+
-
www.rohm.com
+
-
UNIT
+
+
+
© 2010 ROHM Co., Ltd. All rights reserved.
+
+
+
+
-
+
23
+
10µ
18
+
-
+
19
22
Logic
+
21
20
Vcc
+
47µ
BD3403FV,BD3861FS,BD3883FS
Technical Note
●Block diagram, application circuit, pin assignment
(BD3403FV)
RESISTANCE : Ω
CAPACITANCE : F
Fig.2
2010.10 - Rev.A
32
～
0dB
© 2010 ROHM Co., Ltd. All rights reserved.
www.rohm.com
Vcc/2
29
Treble2
fC=10kHz
Treble1
fC=10kHz
9/15
A1
A2
B1
B2
C1
C2
D1
D2
E1
10
4.7K
4.7K
E2
10µ
＋
10µ
＋
10µ
＋
10µ
＋
10µ
＋
10µ
＋
10µ
6
＋
10µ
7
＋
5
11
MIC
10µ
＋
10µ
8
＋
4
～
0dB
12
Vcc/2
Vcc/2
-59dB
47µ
＋
10µ
9
＋
3
100K
0.15 µ
21
Bass1
f0=90Hz
12K
2
25K
25K
25K
25K
25K
25K
25K
25K
25K
25K
22
0.15 µ
3.3K
20
10µ
13
＋
1
25K
25K
25K
Middle1
f 0 =1kHz
23
25K
24
0.015 µ
25K
Middle2
f 0=1kHz
25
0.015 µ
25K
＋
25K
26
0.015 µ
3.3K
24K
25K
Vcc/2
Vcc/2
27
28
0.015 µ
3.3K
0.15 µ
18
15
CLOOK
Logic
Vcc/2
0dB
～
- 59dB
Bass2
f 0=90Hz
DATA
LATCH
14
19
0.15 µ
3.3K
17
Vcc
16
Vcc/2
47µ
10µ
＋
25K
＋
Vcc/2
Vcc/2
Vcc/2
30
4700p
＋
-70dB
+
+
4700p
OUT2
＋
25K
31
10µ
10µ
OUT1
BD3403FV,BD3861FS,BD3883FS
Technical Note
(BD3861FS)
UNIT RESISTANCE : Ω
CAPACITANCE : F
Fig.3
2010.10 - Rev.A
Technical Note
BD3403FV,BD3861FS,BD3883FS
(BD3883FS)
When using RECOUT:
5.6k
5.6k
5.6k
5.6k
VCC
32
31
REC1
0.01 µ 0.01µ 0.01µ 0.01µ 0.1 µ
29
30
REC2
28
MOUT1
MNF1
27
MNF2
26
M OUT2
25
BNF1
Middle1
f0 =1kHz
0.1 µ
0.1 µ
24
BOUT1
Bass1
f0 =80Hz
Treble1
Treble1
fc=8.15kHz
fc=8.15kHz
23
4.7 µ
22
B OUT2
BNF2
4.7 µ
21
OUT1
0.33 µ
19
20
OUT2
CAP
18
VCC
SI
17
SC
Logic
Middle1
f0 =1kHz
Surround
0.1 µ
ATT
0,-10dB
4.7 µ
ATT
0,-10dB
4.7 µ
Bass2
f0 =80Hz
0,6,12,16,20,23,26,29dB
Vcc/2
0,6,12,16,20,23,26,29dB
Vcc/2
Vcc/2
35k
0dB
～
～
- 87dB
- 87dB
100k
100k
100k
100k
100k
100k
2
0.22 µ
SEL１ VIN2
3
SEL2 A１
4
0.22 µ
5
A2
6
0.1 µ
B１
7
0. 1 µ 0.1 µ
B2
8
C１
10
9
0.1 µ
C2
0.1 µ
0.1 µ
D１
11
0.1 µ
D2
12
65k
Vcc/2
VIN１
1
65k
Vcc/2
100k
- ∞
100k
- ∞
35k
Vcc/2
0dB
E１
13
E2
FILTER GND
14
15
0.1 µ
0.1 µ
4.7k
4.7k
16
10 µ
0.1 µ
UNIT
RESISTANCE: Ω
CAPACITOR: F
Fig.4
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© 2010 ROHM Co., Ltd. All rights reserved.
10/15
2010.10 - Rev.A
Technical Note
BD3403FV,BD3861FS,BD3883FS
(BD3883FS)
When using 2ndHPF:
5.6k
56k
32
5.6k
5.6k
0.01µ 0.01µ 0.01µ 0.01µ 0.1µ
56k
31
29
30
28
0.1µ 0.1µ
25
26
27
5.6k
VCC
0.1µ
4.7µ
23
24
22
4.7µ
21
0.33µ
19
20
REC1 REC2 MNF1 MOUT1 MNF2 MOUT2 BNF1 BOUT1 BNF2 BOUT OUT1 OUT2 CAP
Treble1
fc=8.15kHz
SI
17
SC
Logic
ATT
0,-10dB
Bass1
f0=80Hz
Middle2
f0=1kHz
Surround
VCC
ATT
0,-10dB
Middle1
f0=1kHz
18
Bass2
f0=80Hz
Treble2
fc=8.15kHz
0,6,12,16,20,23,26,29d
Vcc/2
0,6,12,16,20,23,26,29d
Vcc/2
B
Vcc/2
VIN 1 SEL 1
1
2
0.1µ
0.1µ
35k
100k
100k
65k
VIN2
3
A１
SEL
4
5
B１
A2
6
0.1µ
0.1µ
100k
Vcc/2
65k
Vcc/2
100k
-∞
100k
- -∞
100k
～
-87dB
100k
～
- -87dB
100k
0dB
35k
Vcc/2
0dB
7
0.1µ 0.1µ
C１
B2
8
0.1µ
C2
10
9
0.1µ
D１
11
0.1µ 0.1µ
D2
12
0.1µ
E１
13
E2
14
FILTER GND
15
0.1µ
16
10µ
0.1µ
4.7k
4.7k
UNIT
RESISTANCE:Ω
CAPACITOR:F
Fig.5
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© 2010 ROHM Co., Ltd. All rights reserved.
11/15
2010.10 - Rev.A
Technical Note
BD3403FV,BD3861FS,BD3883FS
●Reference data
15
15
10
8
6
4
ICC(mA)
GAIN(dB)
10
ICC(mA)
10
5
5
2
0
-2
-4
-6
-8
0
0
0
2
4
6
8
-10
10
0
2
4
VCC(V)
Fig.6 Circuit Current – Supply Voltage
(BD3403FV)
10
10
100
1000
10000
100000
FREQUENCY(Hz)
Fig.8 Voltage Gain - Frequency
10
10
1
1
0.1
1
THD+N(%)
THD+N(%)
OUTPUT VOLTAGE(Vrms)
8
Fig.7Circuit Current – Supply Voltage
(BD3883FS)
10
0.1
0.01
0.1
0.01
0.001
0.001
0.01
0.1
1
0.01
0.001
10
INPUT VOLTAGE(Vrms)
Fig.9 Output Voltage - Input Voltage
0.01
0.1
1
0.001
0.001
10
OUTPUT VOLTAGE(Vrms)
Fig.10 Total Harmonic Distortion ratio Output Voltage (BD3403FV, BD3861FS)
15
5
5
0
-14dB～+14dB
2dB/step
-5
-10
0
-5
1000
-12dB～
+12dB
2dB/step
5
0
-5
-10
-12dB
-12dB
-15
100
10000
100000
-15
10
FREQUENCY(Hz)
100
1000
10000
100000
FREQUENCY(Hz)
Fig.12 Bass Gain - Frequency
（BD3403FV, BD3861FS）
10
+12dB
10
-10
10
1
15
+12dB
-12dB～
+12dB
2dB/step
-14dB
-15
0.1
Fig.11Total Harmonic Distortion ratio Output Voltage (BD3883FS)
GAIN(dB)
10
GAIN(dB)
10
0.01
OUTPUT VOLTAGE(Vrms)
15
+14dB
GAIN(dB)
6
VCC(V)
Fig.13 Middle Gain - Frequency
(BD3403FV, BD3861FS)
10
100
1000
10000
100000
FREQUENCY(Hz)
Fig.14 Treble Gain - Frequency
(BD3403FV, BD3861FS)
16
4.68kHz
14
12
0
-2
-4
10
8
6.67kH
6
8.15kH
4
GAIN(dB)
GAIN(dB)
2
5.64kHz
-6
-8
-10
-12
-14
2
-16
-18
0
10
100
1000
10000
100000
FREQUENCY(Hz)
10
100
1000
10000 10000
0
FREQUENCY(Hz)
Fig.15 Variable Treble Cut-off
Frequency (BD3883FS)
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
Fig.16 2ndHPF - Frequency
(BD3883FS)
12/15
2010.10 - Rev.A
Technical Note
BD3403FV,BD3861FS,BD3883FS
●Notes for use
1) Numbers and data in entries are representative design values and are not guaranteed values of the items.
2) Although ROHM is confident that the example application circuit reflects the best possible recommendations, be sure to
verify circuit characteristics for your particular application. Modification of constants for other externally connected circuits
may cause variations in both static and transient characteristics for external components as well as this Rohm IC. Allow
for sufficient margins when determining circuit constants.
3) Absolute maximum ratings
Use of the IC in excess of absolute maximum ratings, such as the applied voltage or operating temperature range (Topr),
may result in IC damage. Assumptions should not be made regarding the state of the IC (short mode or open mode)
when such damage is suffered. A physical safety measure, such as a fuse, should be implemented when using the IC at
times where the absolute maximum ratings may be exceeded.
4) GND potential
Ensure a minimum GND pin potential in all operating conditions. Make sure that no pins are at a voltage below the GND
at any time, regardless of whether it is a transient signal or not.
5) Thermal design
Perform thermal design, in which there are adequate margins, by taking into account the permissible dissipation (Pd) in
actual states of use.
6) Short circuit between terminals and erroneous mounting
Pay attention to the assembly direction of the ICs. Wrong mounting direction or shorts between terminals, GND, or other
components on the circuits, can damage the IC.
7) Operation in strong electromagnetic field
Using the ICs in a strong electromagnetic field can cause operation malfunction.
8) 2-wire serial control
Because SC and SI terminals are designed for inputting high-frequency digital signals, wiring and layout patterns should
be routed as not to cause interference with the analog-signal-related lines.
9) E Input external resistance (BD3883FS)
To avoid a sudden noise into E Input, external resistance (4.7kΩ) should be connected as close as possible to the IC terminal.
10) Function switching
Action to absorb shock sounds is taken when switching between the Volume, Treble, Middle and Bass functions.
11) Power-ON Reset (BD3883FS)
A built-in circuit for performing initialization inside the IC at Power-ON is provided. Specifically, the initial states are set
as described in the table below. In the case of the setting design, however, to be on the safe side, it is recommended
that data shall be sent to all the addresses as initial data at power-ON and, until this sending operation is completed,
MUTE shall be applied. To avoid malfunctions, serial data signals must be set to the Low state at power-ON/OFF.
Function
Input Selector
Initial State
MUTE
Input Gain
0 dB
RECOUT
OFF
Volume
∞dB
Surround
OFF
Treble
0 dB
Middle
0 dB
Bass
0 dB
Rear Volume
0dB
12) Step switching noise (BD3883FS)
For Surround and Rear Volume, an external capacitor C is attached to the CAP pin to control the switching step noise.
In the application circuit, a constant value, as an example, is shown by the CAP pin.
The time constant for charge/discharge of the capacitor C (varying between VBE to 5VBE (2.65V)) controls the slow
switching operation.
The switching time constant T is calculated as the follows:
5
T=2.55×10 ×C
VBE has temperature characteristics and may affect the value of the time constant T.
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© 2010 ROHM Co., Ltd. All rights reserved.
13/15
2010.10 - Rev.A
Technical Note
BD3403FV,BD3861FS,BD3883FS
13) Input Selector and Input Gain
When changing Input Selector or Input Gain, the Soft-switching is not applied. Therefore, it is recommended to implement
the MUTE function.
MUTE setting example
L=ON
H=OFF
MUTE
SERIAL DATA
SERIAL DATA
40～60ms
INPUT SOURCE
SWITCHING
Fig.17
14) Constraints of serial control (BD3883FS)
On Soft-switching of the RECOUT, Surround, and Rear Volume functions, data must not be sent serially to the functions
before the switching operation is completed.
If the function for Soft-switch should serially send the data (Data(4)) on the
same Select Address, the time interval between the send operations must be
set to 500 -600msec.
Direction
Data(4)
Data(4)
T
Fig.18
15) Function setting while muting Volume (BD3883FS)
While muting Volume, to avoid increasing residual noise, set Bass, Middle and Treble to 0dB, Surround to OFF, and Rear
Volume to -10dB.
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© 2010 ROHM Co., Ltd. All rights reserved.
14/15
2010.10 - Rev.A
Technical Note
BD3403FV,BD3861FS,BD3883FS
●Ordering part number
B
D
3
Part No.
4
0
3
F
Part No.
3403
3861,3883
V
-
Package
FV: SSOP-B40
FS: SSOP-A32
E
2
Packaging and forming specification
E2: Embossed tape and reel
SSOP-B40
<Tape and Reel information>
13.6 ± 0.2
(MAX 13.95 include BURR)
0.5 ± 0.2
1
2000pcs
Direction
of feed
E2
The direction is the 1pin of product is at the upper left when you hold
( reel on the left hand and you pull out the tape on the right hand
)
20
0.15 ± 0.1
0.1
1.8 ± 0.1
Embossed carrier tape
Quantity
21
5.4 ± 0.2
7.8 ± 0.3
40
Tape
0.1
S
0.65
0.22 ± 0.1
0.08
M
1pin
Reel
(Unit : mm)
Direction of feed
∗ Order quantity needs to be multiple of the minimum quantity.
SSOP-A32
<Tape and Reel information>
13.6 ± 0.2
(MAX 13.95 include BURR)
17
Tape
Embossed carrier tape
Quantity
2000pcs
Direction
of feed
0.3MIN
5.4±0.2
7.8±0.3
32
1
E2
The direction is the 1pin of product is at the upper left when you hold
( reel on the left hand and you pull out the tape on the right hand
)
16
0.11
1.8±0.1
0.15 ± 0.1
0.36 ± 0.1
0.1
0.8
1pin
(Unit : mm)
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© 2010 ROHM Co., Ltd. All rights reserved.
Reel
15/15
Direction of feed
∗ Order quantity needs to be multiple of the minimum quantity.
2010.10 - Rev.A
Notice
Notes
No copying or reproduction of this document, in part or in whole, is permitted without the
consent of ROHM Co.,Ltd.
The content specified herein is subject to change for improvement without notice.
The content specified herein is for the purpose of introducing ROHM's products (hereinafter
"Products"). If you wish to use any such Product, please be sure to refer to the specifications,
which can be obtained from ROHM upon request.
Examples of application circuits, circuit constants and any other information contained herein
illustrate the standard usage and operations of the Products. The peripheral conditions must
be taken into account when designing circuits for mass production.
Great care was taken in ensuring the accuracy of the information specified in this document.
However, should you incur any damage arising from any inaccuracy or misprint of such
information, ROHM shall bear no responsibility for such damage.
The technical information specified herein is intended only to show the typical functions of and
examples of application circuits for the Products. ROHM does not grant you, explicitly or
implicitly, any license to use or exercise intellectual property or other rights held by ROHM and
other parties. ROHM shall bear no responsibility whatsoever for any dispute arising from the
use of such technical information.
The Products specified in this document are intended to be used with general-use electronic
equipment or devices (such as audio visual equipment, office-automation equipment, communication devices, electronic appliances and amusement devices).
The Products specified in this document are not designed to be radiation tolerant.
While ROHM always makes efforts to enhance the quality and reliability of its Products, a
Product may fail or malfunction for a variety of reasons.
Please be sure to implement in your equipment using the Products safety measures to guard
against the possibility of physical injury, fire or any other damage caused in the event of the
failure of any Product, such as derating, redundancy, fire control and fail-safe designs. ROHM
shall bear no responsibility whatsoever for your use of any Product outside of the prescribed
scope or not in accordance with the instruction manual.
The Products are not designed or manufactured to be used with any equipment, device or
system which requires an extremely high level of reliability the failure or malfunction of which
may result in a direct threat to human life or create a risk of human injury (such as a medical
instrument, transportation equipment, aerospace machinery, nuclear-reactor controller, fuelcontroller or other safety device). ROHM shall bear no responsibility in any way for use of any
of the Products for the above special purposes. If a Product is intended to be used for any
such special purpose, please contact a ROHM sales representative before purchasing.
If you intend to export or ship overseas any Product or technology specified herein that may
be controlled under the Foreign Exchange and the Foreign Trade Law, you will be required to
obtain a license or permit under the Law.
Thank you for your accessing to ROHM product informations.
More detail product informations and catalogs are available, please contact us.
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R1010A