ROHM BD3818KS

Sound Processors for Home Theater Systems
5.1ch
Sound Processor
BD3811K1,BD3818KS
No.10081EAT02
●Description
BD3811K1 and BD3818KS are 5.1ch sound processors, with built-in Mode Selector/Input Selector. Functions, including
6-ch Volume, Gain Amp, Bass, Treble, Mixing (BD3818KS), Dynamic Bass Boost (BD3818KS) and Bass Boost (BD3811K1)
are integrated into a single chip.
●Features
1) Independent 6 channels for Master Volume (0 to -103dB, 1dB/Step, MUTE, BD3811K1)
(0 to -95dB 1dB/Step, MUTE, BD3818KS)
Implementation of a resistance ladder type circuit reduces residual noise and a shock sound at switching.
2) Low current consumption design achieved by adopting the BiCMOS process
3) Maximum output voltage (BD3818KS): 4.3Vrms (Vcc=7V, VEE=-7V, RL=10kΩ)
Maximum output voltage (BD3811K1): 4.2Vrms (Vcc=7V, VEE=-7V, RL=10kΩ)
4) Built-in Input Gain Amp useful for adjusting the output signal voltages
5) Built-in Operational Amplifier useful for filter construction (BD3818KS)
6) Built-in Dynamic Bass Boost circuit (BD3818KS)
7) 2-wire serial control (BD3818KS for 5V, BD3811K1 for both 3.3V and 5V)
8) Built-in Output Gain Amp useful for adjusting the output signal voltages (BD3811K1)
9) REC output terminal with a REC input/output switch useful for monitoring Equalizer Amp (BD3811K1)
10) Output mute controlled by either serial data or an external control terminal
●Applications
AV receivers, home theater systems and mini-audio systems.
●Line up matrix
Parameter
BD3811K1
BD3818KS
Input Selector
8 inputs
5 inputs
Input Gain
2Step
4 Step or 2 Step
Volume
0 to -103dB 1dB/Step
0 to -95dB 1dB/Step
Bass, Treble
14dB 2dB/Step
14dB 2dB/Step
Output Gain
0, 6 to 18dB 2dB/Step
Variable depending on the external resistance
Mixing
No
Yes
Bass Boost
0 to 12dB, 4dB/Step
0 to 12dB, 4dB/Step
Dynamic type
Package
QFP80
SQFP80
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© 2010 ROHM Co., Ltd. All rights reserved.
1/17
2010.06 - Rev.A
Technical Note
BD3811K1,BD3818KS
●Absolute maximum ratings (Ta=25℃)
Symbol
Parameter
VCC
VEE
VIN
Power Supply Voltage
Input Signal Voltage
Power Dissipation
Ratings
Unit
*1
7.5
-7.5
VCC+0.3 to VEE-0.3
Pd
1200
V
V
*2
mW
Operating Temperature range
Topr
-20 to 75
℃
Storage Temperature range
Tastg
-55 to 125
℃
*1
*2
Even in the specified range of Power Supply Voltage, applying voltage only to the VCC side may cause an excessive current
to give a permanent damage to the IC.
When starting up power supplies, VEE and VCC should be powered on simultaneously or VEE first; then followed by VCC.
Reduced by 12 mW/℃ over 25℃, when installed on the standard board (size: 70x70x1.6mm).
●Operating range
It must function normally at Ta=25℃.
Part No.
Parameter
BD3811K1
Operating Supply Voltage
BD3818KS
Operating Supply Voltage
Symbol
Min.
5
-7.3
5
-7.4
VCC
VEE
VCC
VEE
Ratings
Typ.
7
-7
7
-7
Max.
7.3
-5
7.4
-5
Unit
V
V
●Electrical characteristics
1) BD3811K1 (Ta=25℃, VCC=7V, VEE=-7V, f=1kHz, Vin=1Vrms, RL=10kΩ, Rg=600Ω, Input ATT=0dB,
Input gain=0dB, Master volume=0dB, Output gain=0dB, Bass, Treble and bass boost=0dB, unless otherwise noted.)
Limits
Parameter
Symbol
Unit
Conditions
Min.
Typ.
Max.
VCC
―
15
30
Circuit Current
IQ
mA
No signal
VEE
-30
-15
―
Output Voltage Gain 1ch
Gv1
-2
0
2
dB
Measure : Pin55
Output Voltage Gain 2ch
Gv2
-2
0
2
dB
Measure : Pin57
THD1
―
0.005
0.09
%
THD2
―
0.005
0.09
%
Maximum Output Voltage 1ch
Vomax1
3.4
4.2
―
Vrms
Maximum Output Voltage 2ch
Vomax2
3.4
4.2
―
Vrms
―
2.5
12
µVrms
―
2.0
9.0
µVrms
―
2.5
12
µVrms
―
2.0
9.0
µVrms
Total Output
Total Harmonic Distortion
Ratio 1ch
Total Harmonic Distortion
Ratio 2ch
Output Noise Voltage 1ch
Output Noise Voltage 2ch
Vno1
Vno2
Measure : Pin55
BW=400～30kHz
Measure : Pin57
BW=400～30kHz
Measure : Pin55
THD=1%
Measure : Pin57
THD=1%
Measure : Pin 55 Rg=0Ω,
Tone: ON BW=IHF-A
Measure : Pin 55 Rg=0Ω,
By Pass mode BW=IHF-A
Measure : Pin 57 Rg=0Ω,
Tone: ON BW=IHF-A
Measure : Pin 57 Rg=0Ω,
By Pass mode BW=IHF-A
Input Impedance 1ch
Rin1
28
47
70
kΩ
Measure : Pin1, 3, 5, 7, 9, 11, 77, 79
Input Impedance 2ch
Rin2
28
47
70
kΩ
Measure : Pin2, 4, 6, 8, 10, 12, 78, 80
Cross-talk between Channels
1ch2ch
CTC12
―
-100
-70
dB
Cross-talk between Channels
2ch1ch
CTC21
―
-100
-70
dB
CTS1
―
-100
-70
dB
CTS2
―
-100
-70
dB
Cross-talk
between Selectors 1ch
Cross-talk
between Selectors 2ch
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2/17
Measure : Pin57(OUT2)
Rg=0Ω, BW=IHF-A
Reference : Pin55(OUT1)=1Vrms
Measure : Pin55(OUT1)
Rg=0Ω, BW=IHF-A
Reference : Pin57(OUT2)=1Vrms
Measure : Pin 55
Rg=0Ω, BW=IHF-A
Measure :Pin 57
Rg=0Ω, BW=IHF-A
2010.06 - Rev.A
Technical Note
BD3811K1,BD3818KS
REC Out
Parameter
Volume Output
Input Attenuation
Limits
Min.
Typ.
Max.
Unit
Conditions
R Output Impedance 1ch
RoutR1
―
100
200
Ω
Measure : Pin 71, 73, 75
R Output Impedance 2ch
RoutR2
―
100
200
Ω
Measure : Pin 72, 74, 76
R Voltage Gain 1ch
GVR1
-2
0
2
dB
R Voltage Gain 2ch
GVR2
-2
0
2
dB
R Total Harmonic Distortion
Ratio 1ch
THDR1
―
0.005
0.09
%
R Total Harmonic Distortion
Ratio 2ch
THDR2
―
0.005
0.09
%
V Output Voltage Gain 1ch
GVV1
-2
0
2
dB
Measure : Pin 36, 38
V Output Voltage Gain 2ch
GVV2
-2
0
2
dB
Measure : Pin 35, 37
THDV1
―
0.005
0.09
%
THDV2
―
0.005
0.09
%
V Output Noise Voltage 1ch
VnoV1
―
1.5
8
µVrms
V Output Noise Voltage 2ch
VnoV2
―
1.5
8
µVrms
Volume Control Range 1ch
GVR1
-106
-103
-100
dB
Volume Control Range 2ch
GVR2
-106
-103
-100
dB
Volume Setting Error 1 1ch
VE11
-2
0
2
dB
Volume Setting Error 1 2ch
VE12
-2
0
2
dB
Volume Setting Error 2 1ch
VE21
-3
0
3
dB
Volume Setting Error 2 2ch
VE22
-3
0
3
dB
Maximum Attenuation 1ch
Vmin1
―
-118
-105
dB
Maximum Attenuation 2ch
Vmin2
―
-118
-105
dB
GIA1
-20
-18
-16
dB
Measure : Pin 19, 20
GIA2
-20
-18
-16
dB
Measure : Pin 17, 18
AE1
-2
0
2
dB
Measure : Pin 19, 20
AE2
-2
0
2
dB
Measure : Pin 17, 18
GIG1
4
6
8
dB
GIG2
4
6
8
dB
Input Gain Setting Error 1ch
GIE1
-2
0
2
dB
Input Gain Setting Error 2ch
GIE2
-2
0
2
dB
V Total Harmonic Distortion
Ratio 1ch
V Total Harmonic Distortion
Ratio 2ch
Input Gain
Symbol
Input Attenuation
Control Range 1ch
Input Attenuation
Control Range 2ch
Input Attenuation
Setting Error 1ch
Input Attenuation
Setting Error 2ch
Input Gain
Control Range 1ch
Input Gain
Control Range 2ch
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3/17
Measure : Pin 71, 73, 75
RL=47kΩ, Vin =0.4Vrms
Measure : Pin 72, 74, 76
RL=47kΩ, Vin =0.4Vrms
Measure : Pin 71, 73, 75
RL=47kΩ, Vin =0.4Vrms
BW=400～30kHz
Measure : Pin 72, 74, 76
RL=47kΩ, Vin =0.4Vrms
BW=400～30kHz
Measure : Pin 36, 38
BW=400～30kHz
Measure : Pin 35, 37
BW=400～30kHz
Measure : Pin 36, 38
Rg=0Ω, BW=IHF－A
Measure : Pin 35, 37
Rg=0Ω, BW=IHF－A
Measure : Pin 36, 38, 55
Vin =3Vrms
Measure : Pin 35, 37, 57
Vin =3Vrms
Measure : Pin 36, 38, 55
0 to -53dB , Vin =3Vrms
Measure : Pin 35, 37, 57
0 to -53dB , Vin =3Vrms
Measure : Pin 36, 38, 55
-54 to -103dB , Vin =3Vrms
Measure : Pin 35, 37, 57
-54 to -103dB , Vin =3Vrms
Measure : Pin 36, 38, 55
Vin =3Vrms, BW=IHF-A
Measure : Pin 35, 37, 57
Vin =3Vrms, BW=IHF-A
Measure : Pin 36, 38, 55
Vin =0.4Vrms
Measure : Pin 35, 37, 57
Vin =0.4Vrms
Measure : Pin 36, 38, 55
Vin =0.4Vrms
Measure : Pin 35, 37, 57
Vin =0.4Vrms
2010.06 - Rev.A
Technical Note
BD3811K1,BD3818KS
Treble
Parameter
Bass
Bass Boost
Limits
Unit
Min.
Typ.
Max.
GTB1
12
14
16
dB
GTB2
12
14
16
dB
GTC1
-16
-14
-12
dB
GTC2
-16
-14
-12
dB
Treble Step Resolution 1ch
TR1
―
2
―
dB
Treble Step Resolution 2ch
TR2
―
2
―
dB
Treble Gain Setting Error 1ch
TE1
-2
0
2
dB
Treble Gain Setting Error 2ch
TE2
-2
0
2
dB
GBB1
12
14
16
dB
GBB2
12
14
16
dB
Bass Maximum Cut Gain 1ch
GBC1
-16
-14
-12
dB
Bass Maximum Cut Gain 2ch
GBC2
-16
-14
-12
dB
Bass Step Resolution 1ch
BR1
―
2
―
dB
Bass Step Resolution 2ch
BR2
―
2
―
dB
Bass Gain Setting Error 1ch
BE1
-2
0
2
dB
Bass Gain Setting Error 2ch
BE2
-2
0
2
dB
GBBB1
10
12
14
dB
GBBB2
10
12
14
dB
BBR1
―
4
―
dB
BBR2
―
4
―
dB
Bass Boost Setting Error 1ch
BBE1
-2
0
2
dB
Bass Boost Setting Error 2ch
BBE2
-2
0
2
dB
GOG1
16
18
20
dB
GOG2
16
18
20
dB
GOE1
-2
0
2
dB
GOE2
-2
0
2
dB
Treble Maximum Boost Gain
1ch
Treble Maximum Boost Gain
2ch
Treble Maximum Cut Gain
1ch
Treble Maximum Cut Gain
2ch
Bass Maximum Boost Gain
1ch
Bass Maximum Boost Gain
2ch
Output Gain
Symbol
Bass Boost Maximum Gain
1ch
Bass Boost Maximum Gain
2ch
Bass Boost Step Resolution
1ch
Bass Boost Step Resolution
2ch
Output Gain Control Range
1ch
Output Gain Control Range
2ch
Output Gain Setting Error
1ch
Output Gain Setting Error
2ch
Conditions
Measure : Pin 55
f=15kHz, Vin =0.4Vrms
Measure : Pin 57
f=15kHz, Vin =0.4Vrms
Measure : Pin 55
f=15kHz, Vin =0.4Vrms
Measure : Pin 57
f=15kHz, Vin =0.4Vrms
Measure : Pin 55
f=15kHz, Vin =0.4Vrms
Measure : Pin 57
f=15kHz, Vin =0.4Vrms
Measure : Pin 55
f=15kHz, Vin =0.4Vrms
Measure : Pin 57
f=15kHz, Vin =0.4Vrms
Measure : Pin 55
fo=100Hz, Vin=0.4Vrms
Measure : Pin 57
fo=100Hz, Vin =0.4Vrms
Measure : Pin 55
fo=100Hz, Vin =0.4Vrms
Measure : Pin 57
fo=100Hz, Vin =0.4Vrms
Measure : Pin 55
fo=100Hz, Vin =0.4Vrms
Measure : Pin 57
fo=100Hz, Vin =0.4Vrms
Measure : Pin 55
fo=100Hz, Vin =0.4Vrms
Measure : Pin 57
fo=100Hz, Vin =0.4Vrms
Measure : Pin 55
fo=70Hz, Vin =0.4Vrms
Measure : Pin 57
fo=70Hz, Vin =0.4Vrms
Measure : Pin 55
fo=70Hz, Vin =0.4Vrms
Measure : Pin 57
fo=70Hz, Vin =0.4Vrms
Measure : Pin 55
fo=70Hz, Vin =0.4Vrms
Measure : Pin 57
fo=70Hz, Vin =0.4Vrms
Measure : Pin 36, 38, 55
Vin =0.4Vrms
Measure : Pin 35, 37, 57
Vin =0.4Vrms
Measure : Pin 36, 38, 55
Vin =0.4Vrms
Measure : Pin 35, 37, 57
Vin =0.4Vrms
* Note: This IC is not designed to be radiation-resistant.
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© 2010 ROHM Co., Ltd. All rights reserved.
4/17
2010.06 - Rev.A
Technical Note
BD3811K1,BD3818KS
2) BD3818KS (Ta=25℃ VCC=7V, VEE=-7V, f=1kHz, Vin=500mVrms, RL=10kΩ, Rg=600Ω
Input gain=0dB (FL,FR), 12.6dB (C,LS,RS), 15.6dB (SUB), Master volume=0dB, Bass and Treble =0dB,
Gain amp=0dB (C,LS,RS,SUB), C,LS and RS mixing=OFF, unless otherwise noted.)
Limits
Parameter
Symbol
Unit
Conditions
Min.
Typ.
Max.
Total Output
Circuit Current
IQ
―
28
40
mA
No signal
Output Voltage Gain 1 Line
GV1
3
5
7
dB
Measure : Pin36,39
Vin =0.5Vrms, Line Mode
Output Voltage Gain 1 DVD
GV1DVD
-2
0
2
dB
Measure : Pin36,39
Vin =0.5Vrms, DVD Mode
Output Voltage Gain 1 DSP
GV1DSP
10
12
14
dB
Measure : Pin36,39
Vin =0.2Vrms, DSP Mode
Output Voltage Gain 1 EXT
GV1EXT
-2
0
2
dB
Measure : Pin36,39
Vin =0.5Vrms, EXT Mode
Output Voltage Gain 2
GV2
10.6
12.6
14.6
dB
Measure : Pin 23,25,27
Vin =0.2Vrms
Output Voltage Gain 3
GV3
13.6
15.6
17.6
dB
Measure : Pin 21
Vin =0.15Vrms
Total Harmonic Distortion
Ratio 1
THD1
―
0.002
0.03
%
Total Harmonic Distortion
Ratio 2
THD2
―
0.003
0.03
%
Total Harmonic Distortion
Ratio 3
THD3
―
0.003
0.03
%
Maximum Output Voltage
Vomax
3.6
4.3
―
Vrms
Residual Noise Voltage 1
VNOR1
―
2.7
9
µVrms
Residual Noise Voltage 2
VNOR2
―
1.0
6
µVrms
Cross-talk between Selectors
CTS
―
-90
-75
dB
Cross-talk between Channels
LchRch
CTCLR
―
-90
-75
dB
Cross-talk between Channels
RchLch
CTCRL
―
-90
-75
dB
Cross-talk between Channels
CTCLRS
LSchRSch
―
-90
-75
dB
Cross-talk between Channels
CTCRLS
RSchLSch
―
-90
-75
dB
Cross-talk between Channels
CTCCSU
CchSUBch
―
-85
-70
dB
Cross-talk between Channels
CTCSUC
SUBchCch
―
-90
-75
dB
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© 2010 ROHM Co., Ltd. All rights reserved.
5/17
Measure : Pin36,39
BW=400～30kHz
Vin =0.5Vrms, Line Mode
Measure : Pin 23,25,27
BW=400～30kHz
Vin =0.3Vrms
Measure : Pin 21
BW=400～30kHz
Vin =0.3Vrms
Measure : Pin36,39
THD=1%
Measure : Pin36,39
Rg=0Ω,Volume= -∞
BW=IHF-A
Measure : Pin 21,23,25,27
Rg=0Ω, Volume= -∞BW=IHF-A,
Output amp=0dB
Measure : Pin36,39
Rg=0Ω, BW=IHF-A
Measure : Pin36(OUTFR)
Rg=0Ω, BW=IHF-A
Reference : Pin39(OUTFL)=1Vrms
Measure : Pin39(OUTFL)
Rg=0Ω, BW=IHF-A
Reference : Pin36(OUTFR)=1Vrms
Measure : Pin 23(OUTRS)
Rg=0Ω, BW=IHF-A
Reference :Pin 25(OUTLS) =1Vrms
Measure : Pin 25(OUTLS)
Rg=0Ω, BW=IHF-A
Reference :Pin 23(OUTRS) =1Vrms
Measure : Pin 21(OUTSUB)
Rg=0Ω, BW=IHF-A
Reference :Pin 27(OUTC) =1Vrms
Measure : Pin 27(OUTC)
Rg=0Ω, BW=IHF-A
Reference :Pin 21(OUTSUB) =1Vrms
2010.06 - Rev.A
Technical Note
BD3811K1,BD3818KS
Limits
Min.
Typ.
Max.
Unit
Conditions
Measure : Pin 21,23,25,27,
36,39
VOUT=3Vrms (VOL=0dB)
Measure : Pin 21,23,25,27,36,39
0 to -53dB,
VOUT=3Vrms (at VOL=0dB)
Measure : Pin 21,23,25,27,36,39
-54 to -95dB,
VOUT=3Vrms (at VOL=0dB)
Measure : Pin 21,23,25,27,36,39
BW=IHF-A
VOUT=3Vrms (at VOL=0dB)
VOL
-97
-95
-93
dB
Volume Setting Error 1
VOLE1
-1.5
0
1.5
dB
Volume Setting Error 2
VOLE2
-2
0
2
dB
Maximum Attenuation
VOLmin
―
-115
-105
dB
Treble Maximum Boost Gain
GTB
12
14
16
dB
Measure : Pin36,39, f=15kHz,
Vin=0.1Vrms, Line Mode
Treble Maximum Cut Gain
GTC
-16
-14
-12
dB
Measure : Pin36,39, f=15kHz,
Vin =0.1Vrms, Line Mode
Treble Step Resolution
TR
―
2
―
dB
Measure : Pin36,39, f=15kHz,
Vin =0.1Vrms, Line Mode
Treble Gain Setting Error
TE
-2
0
2
dB
Measure : Pin36,39, f=15kHz,
Vin =0.1Vrms, Line Mode
Bass Maximum Boost Gain
GBB
12
14
16
dB
Measure : Pin36,39, f=100Hz,
Vin =0.1Vrms, Line Mode
Bass Maximum Cut Gain
GBC
-16
-14
-12
dB
Measure : Pin36,39, f=100Hz,
Vin =0.1Vrms, Line Mode
Bass Step Resolution
BR
―
2
―
dB
Measure : Pin36,39, f=100Hz,
Vin =0.1Vrms, Line Mode
Bass Gain Setting Error
BE
-2
0
2
dB
Measure : Pin36,39, f=100Hz,
Vin =0.1Vrms, Line Mode
Input Gain Control Range 1
GIG1
7
9
11
dB
Measure : Pin36,39
Vin =0.1Vrms
Input Gain Setting Error 1
GE1
-2
0
2
dB
Measure : Pin36,39
Vin =0.1Vrms
Input Gain Control Range 2
GIG2
13.6
15.6
17.6
dB
Measure : Pin23,25,27
Vin =0.1Vrms
Input Gain Setting Error 2
GE2
-2
0
2
dB
Measure : Pin23,25,27
Vin =0.1Vrms
Input Gain Control Range 3
GIG3
16.6
18.6
20.6
dB
Measure : Pin21
Vin =0.1Vrms
Input Gain Setting Error 3
GE3
-2
0
2
dB
Measure : Pin21
Vin =0.1Vrms
Gain Amp Control Range
GAG
10
12
14
dB
Measure : Pin 32
Vin =0.2Vrms
Output Gain Setting Error
GAE
-2
0
2
dB
Measure : Pin 32
Vin =0.2Vrms
Line out Voltage Gain
GVLI
6
8
10
dB
Measure : Pin 59,60
Vin =0.3Vrms
THDLI
―
0.003
0.03
%
Measure : Pin 59,60
BW=400～30kHz, Vin =0.3Vrms
Input Gain
Bass
Treble
Volume Output
Volume Control Range
Gain Amp
Symbol
Line Out
Parameter
Line out Total Harmonic
Distortion Ratio
* Note: This IC is not designed to be radiation-resistant.
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6/17
2010.06 - Rev.A
Technical Note
BD3811K1,BD3818KS
●Timing chart
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.
90%
CL
(CLOCK）
90%
twc
10%
thd
DA
DATA
LATCH
90%
twd
ts
90%
DATA
90%
90%
10%
10%
twc
th
tsd
tsl
DATA
10%
thl
90%
90%
twh
10%
thd
10%
twl
LATCH
Terminate
with LOW
Fig.1
Parameter
Limits
Symbol
90%
Unit
Min.
Typ.
Max.
2.0
-
-
µS
Minimum Clock Width
twc
Minimum Data Width
twd
2.0
-
-
µS
Minimum Latch Width
twl
2.0
-
-
µS
LOW Hold Width
twh
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)
tsl
1.0
-
-
µS
Latch Hold Time (DATALATCH)
thl
1.0
-
-
µS
Latch Low Set-up Time
ts
1.0
-
-
µS
Latch Low Hold Time
th
1.0
-
-
µS
2. External Mute (Pin48) Voltage (BD3811K1)
Limits
Parameter
Min.
Typ.
Max.(Vcc)
Volume Mute OFF
0
－
1.0
Volume Mute ON
2.2
－
5.5
Unit
V
Conditions
Vcc=5 to 7.3V
VEE=-5 to -7.3V
3. Voltage Conditions for Control Signals
Limits
BD3811K1
Parameter
BD3818KS
Min.
Typ.
“H” Input Voltage
2.2
－
Max.
(Vcc)
5.5
“L” Input Voltage
0
－
1.0
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© 2010 ROHM Co., Ltd. All rights reserved.
Min.
Typ.
3.0
－
Max.
(Vcc)
5.5
0
－
1.5
7/17
Unit
V
V
Conditions
Vcc=5 to 7.4V
VEE=-5 to -7.4V
2010.06 - Rev.A
Technical Note
BD3811K1,BD3818KS
4. Basic Configuration of Control Data Formats
BD3811K1
Data input direction
MSB
D16
D15
D14
LSB
D13
D12
D11
D10
Data
Data
(3)
Data
(4)
Data
(5)
D8
D7
D6
D5
D4
D3
Data
・Control Data Formats
Data input direction
D16 D15 D14 D13 D12 D11
Data
(1)
Master Volume Rch
Data
(2)
D9
D16
D15
D14
D13
D12
D11
D15
D14
D13
D12
D10
D9
D8
D15
D14
Input select
D16
D15
D13
D12
D10
D9
D8
D10
D9
D8
D11
D10
D9
D8
Input ATT
D13
D9
D12
Treble
D6
D5
D4
D3
D2
D1
D0
0
0
0
D7
D6
D5
D4
D2
D1
D0
0
0
1
D2
D1
D0
0
1
0
D3
D2
D1
D0
*
0
1
1
D3
D2
D1
D0
1
0
0
D3
D7
D6
D5
D4
D3
Master Volume SWch
REC SW1/ REC REC
REC IN SW SW3 SW2
D14
D7
Master Volume Lch
Master Volume Cch
D16
D11
D10
Bass
D8
Tone
D7
D6
5.1ch
Mode 1
D7
D6
Bass boost
D5
D4
5.1ch Input
Mode2 gain
D5
D4
Output gain amp
BD3818KS
Data input direction
MSB
D16
D15
D14
LSB
D13
D12
D11
D10
Data
・Control Data Formats
Data input direction
D16 D15 D14 D13
Data
(2)
D16 D15
Data
(6)
D12
D15
Mix
LRS
D16
D15
D14
D13
D12
FLR select
D14 D13
D12
Mix
C
Mix
amp
D14 D13 D12
Master volume
D16
D15
D14 D13 D12
Master volume
D16
D15
D11
D10
D9
Bass
Input select
D16
Data
(5)
D8
D7
D6
D5
D4
D3
D14 D13 D12
Master volume
D2
D1
D0
Select Address
Select Address
Treble
Data
(3)
Data
(4)
D9
Data
Data
(1)
D0
Select Address
Master Volume SLch
D11
D1
Select Address
Master Volume SRch
D16
D2
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
Tone
*
*
*
0
0
0
0
0
D8
D7
D6
D5
D4
D3
D2
D1
D0
0
1
0
0
0
D4
D3
D2
D1
D0
1
0
0
0
0
D4
D3
D2
D1
D0
0
0
1
D2
D1
D0
0
1
0
D2
D1
D0
0
1
1
C
SUB Input AOUT
LRS select
Line
select select switch select
D11
D10
Gain
select
D11
D10
D9
Input gain
FLR
D9
FLch
D11
Cch
D8
D7
D6
Input
Input
gain
gain C
LRS
D7
D6
D5
Input
gain
SUB
D5
Master volume
D10
D9
LSch
D11
D8
D8
D7
FRch
D6
D5
Master volume
D10
D9
D8
D7
Master volume
D4
D3
RSch
D6
D5
D4
SUBch
D3
* Indicates 0 or 1.
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© 2010 ROHM Co., Ltd. All rights reserved.
8/17
2010.06 - Rev.A
Technical Note
BD3811K1,BD3818KS
●Block diagram, application circuit, pin assignment
1) BD3811K1
REC
MD/DAT
R
L
TAPE
R
VIDEO
R
L
L
470k
80
L
１
78
77
76
470k
470k
75
74
TAPE
R
L
470k
470k
73
72
AGND
AGND
10µ
10µ
470k
71
70
69
68
67
66
65
4700p
47k
47k
47k
47k
64
47k
VIDEO1
R
79
MD/DAT
R
L
RECSW
3
２
RECSW
2
4700p
REC
SW1
63
47k
L
47k
VIDEO2
R
0.1µ
３
TREBLE
REC
INSW
４
0.1µ
61
47k
L
47k
TUNER
R
0.1µ
1
2
3
５
60
BASS
59
６
R
0.22µ
58
７
47k
PHONO
57
OUTR
56
９
CD
BASS
BOOST
47k
R
10
L
11
R
12
4.7k
0.22µ
1
2
3
８
47k
L
4.7k
0.1µ
47k
L
4.7k
62
0.22µ
4.7k
0.22µ
55
Input mute SW
OUTL
47k
54
AGND
53
AGND
5.1ch Mode SW2 DVD
47k
47k
SR
47k
13
47k
47µ
47k
SL
Vcc
52
VCC
47k
DVD
AGND
51
14
47µ
C
15
SW
16
17
LINE
R/L
MIX
OUTDSP
R(- )
18
LINE
R/L
MIX
OUTDSP
L(+)
19
OUTDSP
L(- )
20
INDSP
L
21
INDSP
MIXL
22
INDSP
R
23
INDSP
MIXR
24
OUTDSP
R(+)
50
VEE
49
AGND
48
MUTE
47
CL
46
DA
45
DGND
44
AGND
LOGIC
5.1ch Mode SW1
5.1ch Mode SW2 DSP
VEE
47k
43
47k
47k
10µ
42
47k
47k
25
47k
26
47k
27
41
47k
28
29
30
31
32
33
35
36
37
38
10µ
10µ
INDSP INDSP INDSP INDSP AGND
SR
SL
C
SW
34
39
AGND
40
10µ
OUTSWOUTC OUTSL OUTSR
AGND
UNIT
RESISTANCE : Ω
CAPACITOR : F
Fig.2
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© 2010 ROHM Co., Ltd. All rights reserved.
9/17
2010.06 - Rev.A
Technical Note
BD3811K1,BD3818KS
58
59
57
56
0.1μ
55
0.1μ
54
+
VEE
VCC
AGND
DA
47μ
+
+
60
10μ
CL
10μ
THGND
4.7K
4700p 4700p
0.1μ
AGND
LOUT1
4.7K
+
LOUT2
2) BD3818KS
47μ
0.1μ
53
51
52
50
49
48
47
46
45
44
43
41
42
8.2K
0,3,6,9dB
61
TREBLE
BASS
± 14dB、2dB/ STEP
± 14dB、2dB/ STEP
47K
62
47K
Line
47K
L
-
LINE/ DVD
64
0,5,12dB
EXT
##
MUTE
R
66
LINE/ DVD
L
67
DSP
R
47K
L
69
DVDMIX
R
DVD
AGND
EXIN1
+
-
LRS Select
71
DSP
+
-
MUTE
Input Gain
LRS
73
10K
51K
100μ
VEE
220K
0.22μ
5.1K
31
0.22μ
75K
29
20K
20K
10K
0.33μ 0.22μ
0.01μ
28
12.6,15.6dB
DVD
DSP
74
+
-
72
OUTFR
10K
30
12.6,15.6dB
DVD
0.1μ
0.22μ
DSP
DVD
47K
AGND
32
DET
12.6,15.6dB
47K
EXIN2
0.3dB
Input Gain C
DVD
LINE
70
47K
33
Mix C
C Select
LINE
47K
34
AGC
9,12dB
20K
10μ
35
Gain Select
Mix LRS
Input
Switch
68
-1
0,4,8,12dB
##
MUTE
47K
TUNER
+
+
8.2K
36
Mix amp
0,5,12dB
EXT
0.1μ
37
10K
9,12dB
47K
+
-1
Mix LRS
47K
AUX
+
+
DSP
65
38
Master Volume
0～- 95dB,1dB/ STEP,MUTE
FLR Select
47K
R
OUTFL
Tone
8dB
63
0.1μ
20K
39
+
-
L
VCR
40
+
R
LOGIC
+
-
TV
0.1μ
+
+
L
Input Gain
FLR
-
Input
Select
+
-
MUTE
27
OUTC
5.1K
75
26
Input GainSUB
47K
FR
15.6,18.6dB
DVD
76
DSP
47K
77
LRS
FLR
79
21
80
#
#
0,5,9dB
47K
9
10
11
12
13
14
15
16
17
18
10μ
10μ
10μ
10μ
AGND
47K
8
SUB
47K
7
RS
47K
6
LS
47K
5
C
47K
4
FR
AOUT2
AOUT1
15K
OUTSUB
5.1K
3
FL
2
1
AGND
47K
+
SUB
22
AOUT
Select
47K
OUTRS
5.1K
+
RS
FLR
LRS
47K
15K
23
78
+
LS
24
SUB Select
47K
OUTLS
5.1K
+
C
DVD
15K
25
+
-
19
20
15K
AGND
FL
DSP
To DSP
(#)
INPUT
AOUT
INPUT
GAIN
LINE
5dB
LINE
5dB
DVD(FL,FR)
0dB
DVD
0dB
DVD(LS,RS)
9dB
DSP
12dB
EXT
0dB
(##)
UNIT
RESISTANCE : Ω
CAPACITOR : F
Fig.3
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© 2010 ROHM Co., Ltd. All rights reserved.
10/17
2010.06 - Rev.A
Technical Note
BD3811K1,BD3818KS
●Setting constants for tone control filters
1. Treble filter
fc=1/2π(R2)C
(Hz)
G=20log(R1+R2+Zc)/(R2+Zc) (dB)
Zc=1/jωC (Ω)
Fig.4
Standard values of R1, R2 (reference)
*Typ.
Resistance (KΩ)
Treble Boost Amount
Cut Amount
R1
R2
20
0dB
0
2dB
4.1
15.9
4dB
7.3
12.7
6dB
10.3
9.7
8dB
12.3
7.7
10dB
14.0
6.0
12dB
15.4
4.6
14dB
16.5
3.5
G
3dB
G
ｆ
ｆc
G
*The actual boost cut level may deviate from the standard values in some degree.
3dB
Fig.5
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© 2010 ROHM Co., Ltd. All rights reserved.
11/17
2010.06 - Rev.A
Technical Note
BD3811K1,BD3818KS
2. Bass filter
1
IN
f0 =
+
2 π R1 R2 + R3 C1C2
R3
(Hz)
R2
1
C1C2R2
C1+C2
R1
Q=
When C1=C2
C1
C2
R1
G = 20log
R2+R3
R1
+2
R3
R1
+2
(dB)
Standard values of R2, R3 (reference)
(R1=4.7KΩ, C1=C2=0.1µF）
*Typ.
G
Resistance (KΩ)
Boost Amount
Cut Amount
R2
R3
0dB
0
41.0
2dB
10.8
30.2
3dB
G
4dB
19.3
21.7
6dB
26.0
15.0
8dB
31.2
9.8
±10dB
35.4
5.6
12dB
38.4
2.6
14dB
41.0
0
ｆ
ｆc
G
3dB
Fig.7
*The actual boost/cut levels may deviate from the standard values in some degree.
* Bass Filter Feature
To be able to set the f0 and Q factors of Bass
characteristics to desired values, part of the Bass
Filter is constructed of the external components
shown in the upper-left figure.
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© 2010 ROHM Co., Ltd. All rights reserved.
12/17
2010.06 - Rev.A
Technical Note
BD3811K1,BD3818KS
●Reference data
15
30
5
0
-5
VEE
-10
-15
0
2
4
6
8
6
4
10
0
-10
VEE
2
0
-2
-4
-20
-6
-30
-10
-8
2
4
6
8
10
10
POWER SUPPLY (V)
POWER SUPPLY(V)
Fig.8 Circuit Current - Power Supply
(BD3811K1)
7
6
5
4
3
2
1
1
0.1
0.01
10
100
1000
10000
0.001
100000
FREQUENCY (Hz)
Fig.11 Voltage Gain - Frequency LINE
(BD3818KS)
0.01
0.1
1
1
0.1
0.01
0.001
10
0.01
INPUT VOLTAGE (Vrms)
1
10
Fig.13 Output Voltage - Input Voltage
LINE (BD3818KS)
100
10
8
10
6dB
6
1
0.1
0.01
GAIN(dB)
4
THD+N (%)
THD+N (%)
0.1
INPUT VOLTAGE (Vrms)
Fig.12 Output Voltage - Input Voltage
(BD3811K1)
10
100000
0.001
0.001
0
10000
10
OUTPUT VOLTAGE (Vrms)
OUTPUT VOLTAGE (Vrms)
8
1000
Fig.10 Voltage Gain - Frequency
(BD3811K1)
10
9
100
FREQUENCY (Hz)
Fig.9 Circuit Current - Power Supply
(BD3818KS)
10
GAIN (dB)
8
20
0
10
10
VCC
GAIN (dB)
CIRCUIT CURRENT(mA)
10
CIRCUIT CURRENT(mA)
VCC
1
0.1
2
0dB
0
-2
-4
-6
0.01
-8
0.01
0.1
1
10
INPUT VOLTAGE (Vrms)
Fig.14 THD+N - Input Voltage (BD3811K1)
OUTPUT ATTENUATION (dB)
GAIN (dB)
8
6
0～9dB
3dB/step
2
0
-2
10
100
1000
10000
0.1
1
10
10
100000
FREQUENCY (Hz)
Fig.17 Input Gain - Frequency
(BD3818KS)
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© 2010 ROHM Co., Ltd. All rights reserved.
100
10000
100000
Fig.16 Input Gain - Frequency
(BD3811K1)
0
20
-10
15
-20
+14dB
10
-30
-40
-50
-60
5
0
-5
-70
-14dB+14dB
-10
-80
2dB/step
-15
-90
-100
-100
1000
FREQUENCY (Hz)
Fig.15 THD+N - Input Voltage
LINE(BD3818KS)
10
4
0.01
INPUT VOLTAGE (Vrms)
GAIN (dB)
0.001
-10
0.001
0.001
0.001
-80
-60
-40
-20
VOLUME DATA (dB)
Fig.18 Volume Attenuation Volume Setting (BD3811K1)
13/17
0
-14dB
-20
10
100
1000
10000
100000
FREQUENCY (Hz)
Fig.19 Bass Gain - Frequency
2010.06 - Rev.A
Technical Note
BD3811K1,BD3818KS
14
20
+14dB
15
10
0
-5
-14dB+14dB
2dB/step
-10
9dB
GAIN (dB)
GAIN (dB)
5
8
6
4
-14dB
-20
10
100
1000
10000
100
1000
10000
10
100000
Fig.21 Surround Mixing - Frequency
(BD3818KS)
-20
-30
0
-40
-5
10
100
1000
10000
100000
1
0.1
0～12dB
4dB/step
0.01
0.001
-50
100000
10000
Fig.22 Center Mixing - Frequency
(BD3818KS)
OUTPUT VOLTAGE (Vrms)
GAIN (dB)
-10
0, 6dB～18dB
2dB/step
1000
10
0
15
100
FREQUENCY (Hz)
10
5
6
FREQUENCY (Hz)
20
10
8
0
10
FREQUENCY (Hz)
Fig.20 Treble Gain - Frequency
10
2
0
100000
0dB
12
4
2
-15
GAIN (dB)
3dB
16
14
10
GAIN (dB)
18
12dB
12
10
100
1000
FREQUENCY (Hz)
10000
0.001
100000
Fig.24 Dynamic Bass –
Frequency (BD3818KS)
Fig.23 Output Gain – Frequency
(BD3811K1)
0.01
0.1
1
10
INPUT VOLTAGE (Vrms)
FREQUENCY (Hz)
Fig.25 AGC Output Voltage - Input
Voltage (BD3818KS)
8.0
NOISE (μVrms)
CROSSTALK (dB)
-20
-40
-60
-80
7.0
8.0
6.0
7.0
5.0
NOISE (μVrms)
0
4.0
3.0
2.0
1.0
-100
10
100
1000
10000
100000
FREQUENCY (Hz)
Fig.26 Cross-talk - Frequency
(BD3818KS)
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© 2010 ROHM Co., Ltd. All rights reserved.
5.0
4.0
3.0
2.0
1.0
0.0
-120
6.0
2
4
6
8
10
POWER SUPPLY (V)
0.0
2
4
6
8
10
POWER SUPPLY (V)
Fig.27 Output Noise Voltage (FL,FR)Power Supply Voltage (BD3818KS)
14/17
Fig.28 Output Noise Voltage (C,LS,RS,SW)Power Supply Voltage (BD3818KS)
2010.06 - Rev.A
Technical Note
BD3811K1,BD3818KS
●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. VEE potential
Make the VEE pin voltage such that it is the lowest voltage even when operating below it. Actually confirm that the voltage
of each pin does not become a lower voltage than the VEE pin, including transient phenomena.
5. Thermal design
Perform thermal design, in which there are adequate margins, by taking into account the power 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. Serial control
For the CL and DA terminals, the patterned and other wirings should be routed not to cause interference with the
analog-signal-related lines.
9. Power ON/OFF
(a) At power ON/OFF, a shock sound will be generated. Therefore, use MUTE on the set.
(b) When turning on power supplies, VEE and VCC should be powered on simultaneously, or VEE first followed by
VCC. If the VCC side is started up first, an excessive current may flow from VCC to VEE.
10. Function switching
For the CL and DA terminals, the patterned and other wirings should be routed as not to cause interference with the
analog-signal-related lines.
11. Ground line
The ground pin: 47pin (BD3818KS) should be connected to the ground line with as low noise as the AGND pin.
12. Switching noise reduction at switching volume from -3dB to -4dB (BD3811K1 only)
In order to reduce a switching noise at the switching volume from -3dB to -4dB, the -4dB-step switch should be switched
first, and then the -1dB-step switch by -1dB.
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© 2010 ROHM Co., Ltd. All rights reserved.
15/17
2010.06 - Rev.A
Technical Note
BD3811K1,BD3818KS
●Thermal derating characteristics
1400
1200mW
Power Dissipation Pd （mW)
1200
1000
800
600
400
200
0
0
25
50
75
100
125
Ta( ℃)
Fig.29
BD3811K1, BD3818KS
ROHM standard board packaging time value
Board size: 70 x 70 x 1.6mm Raw material: FR4 glass epoxy board (copper area 3% or below)
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© 2010 ROHM Co., Ltd. All rights reserved.
16/17
2010.06 - Rev.A
Technical Note
BD3811K1,BD3818KS
●Ordering part number
B
D
3
Part No.
8
1
1
K
Part No.
3811
3818
1
-
Package
K1: QFP80
KS: SQFP80
Packaging and forming specification
None: Tray,
QFP80
<Tape and Reel information>
24.0±0.3
20.0±0.2
41
65
40
80
25
24
Container
Tray (with dry pack)
Quantity
500pcs
Direction of feed
Direction of product is fixed in a tray
1pin
0.15±0.1
0.05
2.7±0.1
1
1.2
14.0±0.2
18.0±0.3
64
0.15
0.35±0.1
0.8
∗ Order quantity needs to be multiple of the minimum quantity.
(Unit : mm)
SQFP80
<Tape and Reel information>
16.4±0.3
14.0±0.2
41
61
40
80
21
14.0±0.2
Container
Tray (with dry pack)
Quantity
500pcs
Direction of feed
Direction of product is fixed in a tray
1pin
1
0.5
16.4±0.3
60
20
0.05
2.7±0.1
0.15±0.1
0.15
0.65
0.3±0.1
∗ Order quantity needs to be multiple of the minimum quantity.
(Unit : mm)
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© 2010 ROHM Co., Ltd. All rights reserved.
17/17
2010.06 - 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.
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More detail product informations and catalogs are available, please contact us.
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http://www.rohm.com/contact/
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© 2010 ROHM Co., Ltd. All rights reserved.
R1010A