1/17
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Sound Processors for Home Theater Systems
6.1ch
Sound Processor
BD3816K1,BD3817KS
●Description
The BD3816K1 and BD3817 KS are 6.1ch sound processors. Functions required for applications, such as AV receivers and
home theater systems, are integrated into a single chip. A wide dynamic range of 132dB is achieved by utilizing the
BiCMOS process.
●Features
1) Dynamic range: 132dB (Volume Direct Mode, VOL= MUT E, IHF-A)
2) Independent 7 channels for Master Volume (0 to -95 dB, MUTE 1dB/Step)
3) Supporting 2nd room entertainment/2nd source recording.
4) Low current consumption desi gn achieved by adopting the Bi-CMOS process.
5) Maximum output voltage: 4.2Vrms (VCC=7V, VEE=-7V, RL=10k).
6) Built-in Input Gain Amp useful for amplifying input signals (0-7dB, 1dB/Step).
7) Built-in Output Gain Amp useful for adjusting output signal v oltages (0-17dB, 1dB/Step)
8) Built-in mixing circuit for distributing the output signals from Center and Subwoofer channel to Front R/L channels
(0, -3, -4.5dB).
9) 2ch Volume control BD3812F or 6ch Function Switch BD3843FS can be controlled simultaneously
by the serial control bus.
10) REC A output terminal with a REC input/output switch useful for monitoring Equalizer Amp.
(For BD3816K1, availabl e as an in put function of the seventh line.)
11) Output mute controlled by either serial data or an external control terminal.
12) 2-wire serial control (For both 3.3V and 5V)
●Applications
AV receivers, home theater systems, and mini-audio systems.
●Line up matrix
Parameter BD3816K1 BD3817KS
Number of Input Selectors 6(+1) inputs
ROUTA terminal: available as
an input selector of the seventh line 10 inputs, 2 outputs
Input Gain 0 ~ 7dB 1dB/step 0 ~ 7dB 1dB/step
Volume 0 ~ -95dB 1dB/step、7ch 0 ~ -95dB 1dB/step、7ch
Bass, T reble ±14dB 2dB/step ±14dB 2dB/step
Output Gain 0 ~ 17dB 1dB/step 0 ~ 17dB 1dB/step
Mixing Yes Yes
Package QFP80 SQFP100
No.10081EAT06
2/17
BD3816K1,BD3817KS
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Technical Note
●Absolute maximum ratings (Ta=25℃)
Parameter Symbol Ratings Unit
Power Supply Voltage VCC 7.5
*1 V
VEE -7.5
Power Dissipation Pd 1200 (BD3816K1)
*2 mW
1300 (BD3817KS)
Operating Temperature Range Topr -20 ~ +75 ℃
Storage Temperature Range Tstg -55 ~ +125 ℃
*1 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.
*2 Reduced by 12 mW/℃ over 25℃ (BD3816K1), when installed on the standard board (size: 70x70x1.6mm).
Reduced by 13 mW/℃ over 25℃ (BD3817KS), when installed on the standard board (size: 70x70x1.6mm)
●Operating conditions
Must function normally at Ta=25C.
Parameter Symbol Ratings Unit
Min. Typ. Max.
Operating source voltage VCC 5.0 7.0 7.3
V
VEE -7.3 -7.0 -5.0
●Electrical characteristics
Ta=25℃, VCC=7V, f=1kHz, Vin=1Vrms, RL=10k, Rg=600, Input Gain=0dB, Volume=0dB, Output Gain=0dB, Bass=0dB,
Treble=0dB, Mixing c/sw=OFF, unless otherwise noted.
Parameter Symbol
Limits Unit Conditions
Min. Typ. Max.
Circuit Current VCC IQ － 24 40 mA No signal
VEE -40 -24 －
Output Voltage Gain Gv -2 0 2 dB
Total Harmonic Distortion Ratio THD － 0.001 0.03 % BW=400Hz-30kHz
Maximum Output Voltage Vomax 3.6 4.2 － Vrms THD=1%
Output Noise Voltage Vno
－ 2.0 12 µVrms Rg=0Ω, BW=IHF-A
(Output gain ON, Tone ON)
－ 1.5 8 µVrms Rg=0Ω, BW=IHF-A
(Output gain ON, Tone OFF)
－ 1.2 8 µVrms Rg=0Ω, BW=IHF-A
(*OM=Volume Direct)
Cross-talk between Channels CTC － -95 -80 dB Rg=0Ω, BW=IHF-A
Cross-talk between Selectors CTS － -95 -80 dB Rg=0Ω, BW=IHF-A
Volume Output Voltage GVV -2 0 2 dB
Volume Total Harmonic
Distortion Ratio THDV － 0.001 0.03 % BW=400Hz-30kHz
Volume Output Noise Voltage VnoV － 1.2 8 µVrms Rg=0Ω, BW=IHF-A
3/17
BD3816K1,BD3817KS
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© 2010 ROHM Co., Ltd. All rights reserved.
Technical Note
Parameter Symbol
Limits Unit Conditions
Min. Typ. Max.
Volume Control Range VOL -97.5 -95 -92.5 dB Vin=3Vrms
*OM=Volume Direct
Volume Setting Error 1 VOLE1 -1.5 0 1.5 dB 0 to -53dB, Vin=3Vrms
*OM=Volume Direct
Volume Setting Error 2 VOLE2 -2.5 0 2.5 dB -54dB to -95dB, Vin=3Vrms
*OM=Volume Direct
Maximum Attenuation VOLmin － -115 -105 dB
Vin=3Vrms, BW=IHF-A
*OM=Volume Direct
Treble Maximum Boost Gain GTB 12 14 16 dB f=15kHz, Vin=0. 4Vrms
Treble Maximum Cut Gain GTC -16 -14 -12 dB f=15kHz, Vin=0.4Vrms
Treble Step Resolution TR － 2 － dB f=15kHz, Vin=0.4Vrms
Treble Gain Setting Error TE -2 0 2 dB f=15kHz, Vin=0.4Vrms
Bass Maximum Boost Gain GBB 12 14 16 dB f=100Hz, Vin=0.4Vrms
Bass Maximum Cut Gain GBC -16 -14 -12 dB f=100Hz, Vin=0.4Vrms
Bass Step Resolution BR － 2 － dB f=100Hz, Vin=0.4Vrms
Bass Gain Setting Error BE -2 0 2 dB f=100Hz, Vin=0.4Vrms
C Mixing Gain Control Range GMCG -6.5 -4.5 -2.5 dB *OM=Volume Direct
C Mixing Gain Setting Error GMCE -2 0 2 dB *OM=Volume Direct
SW Mixing Gain Control Range GMSW
G -6.5 -4.5 -2.5 dB *OM=Volume Direct
SW Mixing Gain Setting Error GMSWE -2 0 2 dB *OM=Volume Direct
Input Gain Control Range GIG 5 7 9 dB Vin=0.4Vrms
*OM=Volume Direct
Input Gain Setting Error GIE -2 0 2 dB Vin=0.4Vrms
*OM=Volume Direct
Output Gain Control Range GOG 15 17 19 dB Vin=0.4Vrms
*OM=Output gain ON(Tone OFF)
Output Gain Setting Error GOE -2 0 2 dB Vin=0.4Vrms
*OM=Output gain ON(Tone OFF)
ROUT Output Impedance RoutR － 20 100 Ω
ROUT Voltage Gain GVR -2 0 2 dB RL=47kΩ
ROUT Total Harmonic
Distortion Ratio THDR － 0.005 0.09 % RL=47kΩ, BW=400Hz-30kHz
* OM:Output mode
* Note: This IC is not designed to be radiation-resistant.
4/17
BD3816K1,BD3817KS
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© 2010 ROHM Co., Ltd. All rights reserved.
Technical Note
●Timing chart
1) Signal Timing Conditions
・Data is read on the rising edge of the clock.
・Latch is read out 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=17bit
Fig. 1
Parameter Symbol Limits Unit
Min. Typ. Max.
Minimum Clock Width twc 1.0 － － µs
Minimum Data Width twd 1.0 － － µs
Minimum Latch Width twl 1.0 － － µs
LOW Hold Width twh 1.0 － － µs
Data Set-up Time (DATACLK) tsd 0.5 － － µs
Data Hold Time (CLKDATA) thd 0.5 － － µs
Latch Set-up Time (CLKLATCH) tsl 0.5 － － µs
Latch Hold Time (DATALATCH) thl 0.5 － － µs
Latch Low Set-up Time ts 0.5 － － µs
Latch Low Hold Time th 0.5 － － µs
2) Voltage Conditi ons for Control Signals
Parameter Condition Limits Unit
Min. Typ. Max. (≦Vcc)
“H” Input Voltage Vcc=5 ~ 7.3V
VEE=-5 ~ -7.3V
2.2 － 5.5 V
“L” Input Voltage 0 － 1.0 V
CL
（CLOCK）
DA
DATA
LATCH
thd thd th ts tsl thl tsd
twc
twh
twd twl
tsu
DATA DATA LATCH
90% 90% 90% 90%
10% 10% 10%
90% 90% 90% 90% 90%
10% 10% 10%
twc
Terminate
with Low
5/17
BD3816K1,BD3817KS
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© 2010 ROHM Co., Ltd. All rights reserved.
Technical Note
3) Control Data Format List
Data input Direction
MSB LSB
Data D16 D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
Data Select Address
(1)BD3816K1 Control Data Formats Select Address
Data
①
D16 D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
FRL select 6.1ch
select Input select 0 0 0 0 0 0
Data
②
D16 D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
REC A
mode select REC B REC C Output
mode select 0 0 1 0 0 0
Data
③
D16 D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
Treble Bass
Mixing
Cch Mixing
SWch 1 0 0 0 0
Data
④
D16 D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
Input gain
FRLch Input gain
SRLch Input gain
Cch Input gain
CBch 1 1 0 0 0
Data
⑤
D16 D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
Master volume
and Output gain SWch Input gain
SWch 0 0 0 1
Data
⑥
D16 D15 D14 D13 D12 D11 D0 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
Master volume
and Output gain FRch Master volume
and Output gain FLch 0 1 0
Data
⑦
D16 D15 D14 D13 D12 D11 D0 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
Master volume
and Output gain SRch Master volume
and Output gain SLch 0 1 1
Data
⑧
D16 D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
Master volume
and Output gain Cch Master volume
and Output gain CBch 1 0 1
・By changing Select Address, eight different control formats are selectable.
For Select Address, the values, except for those shown above, must not be specified.
・At power-on sequence, initialize all data.
(Example)
Data input Direction
MSB LSB MSB LSB MSB LSB MSB LSB MSB LSB MSB LSB MSB LSB MSB LSB
Data① L Data② LData③ L Data④ LData⑤ LData⑥L Data⑦ L Data⑧L
“L” means latch.
・After power-on, for the second and subsequent times, only the necessary data can be selected for setting.
Example: When changing the input gain in the example:
Data input Direction
MSB LSB
Data④ L
“L” means latch.
6/17
BD3816K1,BD3817KS
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Technical Note
(2)BD3817K1 Control Data Formats Select Address
Data
①
D16 D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
FRL select 6.1ch
select Input select1 Input select2 0 0 0 0 0
Data
②
D16 D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
REC A
mode select REC B REC C Output
mode select 0 0 1 0 0 0
Data
③
D16 D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
Treble Bass
Mixing
Cch Mixing
SWch 1 0 0 0 0
Data
④
D16 D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
Input gain
FRLch Input gain
SRLch Input gain
Cch Input gain
CBch 1 1 0 0 0
Data
⑤
D16 D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
Master volume
and Output gain SWch Input gain
SWch 0 0 0 1
Data
⑥
D16 D15 D14 D13 D12 D11 D0 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
Master volume
and Output gain FRch Master volume
and Output gain FLch 0 1 0
Data
⑦
D16 D15 D14 D13 D12 D11 D0 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
Master volume
and Output gain SRch Master volume
and Output gain SLch 0 1 1
Data
⑧
D16 D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
Master volume
and Output gain Cch Master volume
and Output gain CBch 1 0 1
・By changing Select Address, eight different control formats are selectable.
For Select Address, the values, except for those shown above, must not be specified.
・At power-on sequence, initialize all data.
Example:
Data input Direction
MSB LSB MSB LSB MSB LSB MSB LSB MSB LSB MSB LSB MSB LSB MSB LSB
Data① L Data② LData③ L Data④ LData⑤ LData⑥L Data⑦ L Data⑧L
“L” means latch.
・After power-on, for the second and subsequent times, only the necessary data can be selected for setting.
Example: When changing the input gain in the example:
Data input Direction
MSB LSB
Data④ L
“L” means latch.
7/17
BD3816K1,BD3817KS
www.rohm.com 2010.06 - Rev.A
© 2010 ROHM Co., Ltd. All rights reserved.
Technical Note
●Block diagram, application circuit
1) BD3816K1
UNIT
RESISTANCE：Ω
CAPACITOR:F
Fig. 2
25 26 27 28 29 30 31 32 363533 34 37 38 39 40
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
80 79 78 77 76 75 74 73 697072 71 68 67 66 65
LOGIC
TREBLE
REC C
REC B
REC A
VCC VEE
FRL select
6.1ch select
Input select
BASS
Master
volume
Output
mode
select
+
+
ING SW
++ +
+ +
4700p
4700p
++
+
AGND
R
CD
L
R
MD/DAT
L
R
L
R
L
R
L
R
L
TAPE
TUNER
VIDEO
PHONO
AGND
FR
FL
C
SR
SL
CB
SW
OUT 1
OUT 2
AGND
AGND FR FL SR SL CB SW
CAGND 10μ10μ
AGND 10μ
10μ
10μ
AGND
OUTSW
AGND
OUTCB
OUTSL
OUTSR
OUTC
OUTFL
OUTFR
AGND
AGND
THGND
MUTE
CL
DA
AGN
D
VEE
VCC
AGND
R
R
R
L
L
L
MD/DAT
TAPE
VIDEO
AGND
0.1μ4.7k
0.1μ
0.1μ4.7k
0.1μ
10μ
10μ
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47
k47
k47
k47
k47
k47
k47
k
DVD
470k
DSP
47μ
47μ
470k
470k
470k
470k
470k
+
+
+
10μ
10μ
TO DSP
8/17
BD3816K1,BD3817KS
www.rohm.com 2010.06 - Rev.A
© 2010 ROHM Co., Ltd. All rights reserved.
Technical Note
2) BD3817KS
UN
SISTANCE：Ω
CAPACITOR:F
Fig. 3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
37 38 42
41
39 40 43 44 45 46
31 32 36
35
33 34 50
4948
47
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
94 93 89
90
92 91 88 87 86 85
100 99 95
96
98 97 81
8283
84
LOGIC
TREBLE
R
E
C
C R
E
C
B R
E
C
A V
CC V
EE
FRL select
BASS
Master
volume
Output
mode
select
+
+
6.1ch select
Input
select2 Input
select1
AGND
AGND
R
CD L
R
MD L
47k
47k
47k
47k
R
DAT L 47k
47k
R
L
R
L
47k
47k
47k
47k
R
L 47k
47k
R
L 47k
47k
TAPE
TUNER
VIDEO1
VIDEO2
O
U
T1
O
UT
2
AGND
NC
OUTSR
OUTC
OUTFL
OUTFR
4.7k
4.7k
4700p
4700p
AGND
+
+
R
L
R
L
R
AG
N
D
R
L 47k
47k
R
L 47k
47k
R
L 47k
47k
PHONO
VIDEO3
AUX
47k
47k
47k
47k
47k
47k
47k
FR
FL
C
SR
SL
CB
SW
DVD
+
+
1
0
μ
1
0
μ
+
AGND
NC
OUTSW
AGND
OUTCB
OUTSL
AGND
A
G
N
D
TO DSP2
VIDEO
L
TAPE
100k
100k
100k
100k
100k
100k
MA/DAT
AGND
VCC
VEE
AGND
NC
47µ
47µ
DA
CL
MUTE
THGND
+10µ
+10µ
0.1µ
0.1µ
0.1µ
0.1µ
+10µ
+10µ
+10µ
+10µ
NC
NC
NC
47k
NC
NC
47k
47k
47k
47k
47k
47k
10µ
AGND
AGND
AGND
AGND
AOUT1
AOUT2
TO DSP
DSP
FR
FL
C
SR
SL
CB
SW
9/17
BD3816K1,BD3817KS
www.rohm.com 2010.06 - Rev.A
© 2010 ROHM Co., Ltd. All rights reserved.
Technical Note
●Equivalent circuit
BD3816K1 BD3817KS
Pin
No. Pin
Name Pin
No. Pin
Name Pin
Voltage Equivalent circuit Description
1
14
22
25
33
36
45
47
52
61
70
73
80
AGND1
AGND2
AGND3
AGND4
AGND5
AGND6
AGND7
AGND8
AGND9
AGND10
AGND11
AGND12
AGND13
1
2
23
31
35
46
50
59
62
67
77
86
90
97
100
AGND1
AGND2
AGND3
AGND4
AGND5
AGND6
AGND7
AGND8
AGND9
AGND10
AGND11
AGND12
AGND13
AGND14
AGND15
0 － Ground pins
2
3
4
5
6
7
8
9
10
11
12
13
INA1
INA2
INB1
INB2
INC1
INC2
IND1
IND2
INE1
INE2
INF1
INF2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
INA1
INA2
INB1
INB2
INC1
INC2
IND1
IND2
INE1
INE2
INF1
INF2
ING1
ING2
INH1
INH2
INI1
INI2
INJ1
INJ2
0
VCC
VEE
Signal input pins; the
recommended Input
Impedance value is 47k,
provided by an exter nal
resistance.
15
16
17
18
19
20
21
26
27
28
29
30
31
32
INDVDFR
INDVDFL
INDVDC
INDVDSR
INDVDSL
INDVDCB
INDVDSW
INDSPFR
INDSPFL
INDSPC
INDSPSR
INDSPSL
INDSPCB
INDSPSW
24
25
26
27
28
29
30
38
39
40
41
42
43
44
INDVDFR
INDVDFL
INDVDC
INDVDSR
INDVDSL
INDVDCB
INDVDSW
INDSPFR
INDSPFL
INDSPC
INDSPSR
INDSPSL
INDSPCB
INDSPSW
0
VCC
VEE
Signal input pins; the
recommended Input
Impedance value is 47k,
provided by an exter nal
resistance.
10/17
BD3816K1,BD3817KS
www.rohm.com 2010.06 - Rev.A
© 2010 ROHM Co., Ltd. All rights reserved.
Technical Note
BD3816K1 BD3817KS
Pin
No. Pin
Name Pin
No. Pin
Name Pin
Voltage Equivalent circuit Description
23
24
46
48
49
50
51
53
54
OUT1
OUT2
OUTSW
OUTCB
OUTSL
OUTSR
OUTC
OUTFL
OUTFR
32
33
61
63
64
65
66
68
70
AOUT1
AOUT2
OUTSW
OUTCB
OUTSL
OUTSR
OUTC
OUTFL
OUTFR
0
VC C
VE E
Signal output pins
34
37
39
41
43
63
65
GOUTSW
GOUTCB
GOUTSL
GOUTSR
GOUTC
GOUTFL
GOUTFR
48
51
53
55
57
79
81
GOUTSW
GOUTCB
GOUTSL
GOUTSR
GOUTC
GOUTFL
GOUTFR
0
VC C
VE E
Signal output from input
gain pins
35
38
40
42
44
62
64
VINSW
VINCB
VINSL
VINSR
VINC
VINFL
VINFR
49
52
54
56
58
78
80
VINSW
VINCB
VINSL
VINSR
VINC
VINFL
VINFR
0
VC C
VE E
Signal input to master
volume pins, Input
Impedance: 20k(at Ty p.)
55
57 BNFB2
BNFB1 71
73 BNFB2
BNFB1 0
VCC
VEE
Bass frequency
characteristic and gain
setting pins
11/17
BD3816K1,BD3817KS
www.rohm.com 2010.06 - Rev.A
© 2010 ROHM Co., Ltd. All rights reserved.
Technical Note
BD3816K1 BD3817KS
Pin
No. Pin
Name Pin
No. Pin
Name Pin
Voltage Equivalent circuit Description
56
58 BNFA2
BNFA1 72
74 BNFA2
BNFA1 0
VCC
VEE
Bass frequency
characteristic and gain
setting pins
59
60 TNF2
TNF1 75
76 TNF2
TNF1 0
VCC
VEE
Treble frequency
characteristic and gain
setting pins
66 THGND 82 THGND 0 － Ground pin for
Comparator
67 MUTE 83 MUTE －
VCC
VEE
200k
External mute pin
68 CL 84 CL －
VCC
VEE
Serial clock input pin
12/17
BD3816K1,BD3817KS
www.rohm.com 2010.06 - Rev.A
© 2010 ROHM Co., Ltd. All rights reserved.
Technical Note
BD3816K1 BD3817KS
Pin
No. Pin
Name Pin
No. Pin
Name Pin
Voltage Equivalent circuit Description
69 DA DA －
VCC
VEE
Serial data input pin
71 VEE VEE － Negativ e power supply pin
72 VCC VCC － Positive power supply pin
74
75 ROUTA1
ROUTA2 ROUTA1
ROUTA2
0
VCC
VEE
Input/output for REC pins
76
77
78
79
ROUTB1
ROUTB2
ROUTC1
ROUTC2 ROUTB1
ROUTB2
ROUTC1
ROUTC2 0
VCC
VEE
Signal output for REC pins
－ － 98
99 OUT1
OUT2 0
VCC
VEE
Signal output pins
13/17
BD3816K1,BD3817KS
www.rohm.com 2010.06 - Rev.A
© 2010 ROHM Co., Ltd. All rights reserved.
Technical Note
●Setting constants for tone control filters
1) Treble filter
Standard values of R1, R2 (reference)
Treble Boost Amount
Cut Amount
Resistance (K)
*Typ.
R1 R2
0dB 0 20
±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
*The actual boost /cut amount may deviate from the standard values in some degree.
R2
IN
Pin 75,76
OUT
C
+
-
R1
1
fc= (Hz)
2πR2C
R1+R2+Zc
G = 20log (dB)
R2+Zc
1
Zc= (Ω)
jωC
Fig. 5
G
f
fc
G
3dB
G
3dB
14/17
BD3816K1,BD3817KS
www.rohm.com 2010.06 - Rev.A
© 2010 ROHM Co., Ltd. All rights reserved.
Technical Note
2) Bass filter
Standard values of R2, R3 (reference)
(R1=4.7KΩ,C1=C2=0.1µF)
Boost Amount
Cut Amount
Resistance (K)
*Typ.
R2 R3
0dB 0 39.5
±2dB 10.3 29.2
±4dB 18.4 21.1
±6dB 24.8 14.7
±8dB 29.9 9.6
±10dB 33.8
5.7
±12dB 36.9 2.6
±14dB 39.5 0
*The actual boost/cut amounts may deviate from
the standard values in some degree.
C1 C2
R3 R2
IN
R1
+
-
Pin72,74 Pin71,73
Fig. 6
R1
C1C2R2
C2C1
1
Q
(HZ)
R3)C1C2 R1(R22π
1
fo =
+
=
+
When C1=C2
(dB)
2
R1
R3
2
R1
R3R2
20logG
+
+
+
≈
Fig. 7
* 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 Fig.6
G
f
fo
G
G
15/17
BD3816K1,BD3817KS
www.rohm.com 2010.06 - Rev.A
© 2010 ROHM Co., Ltd. All rights reserved.
Technical Note
-25
-20
-15
-10
-5
0
5
10
15
20
25
0246810
VCC,VEE(V)
CIRCUIT CURRENT (mA)
0.0001
0.001
0.01
0.1
1
10
0.001 0.01 0.1 1 10
INPUT VOLTAGE(Vrms)
THD+N(%)
-2
0
2
4
6
8
10 100 1000 10000 100000
FREQUENCY(Hz)
GAIN(dB)
-2
0
2
4
6
8
10
12
14
16
18
10 100 1000 10000 100000
FREQUENCY(Hz)
GAIN(dB)
0.0
1.0
2.0
3.0
4.0
5.0
0246810
VCC,VEE(V)
NOISE(μVrms)
-20
-15
-10
-5
0
5
10
15
20
10 100 1000 10000 100000
FREQUENCY(Hz)
GAIN(dB)
0.001
0.01
0.1
1
10
0.001 0.01 0.1 1 10
INPUT VOLTAGE(Vrms)
OUTPUT VOLTAGE(Vrms)
-20
-15
-10
-5
0
5
10
15
20
10 100 1000 10000 100000
FREQUENCY(Hz)
GAIN(dB)
0.001
0.01
0.1
1
10
0.001 0.01 0.1 1 10
INPUT VOLTAGE(Vrms)
OUTPUT VOLTAGE(Vrms)
●Reference data
-2
-1
0
1
2
10 100 1000 10000 100000
FREQUENCY(Hz)
GAIN(dB)
0.0001
0.001
0.01
0.1
1
10
0.001 0.01 0.1 1 10
INPUT VOLTAG E( Vrms)
THD+N(%)
0～7dB
1dB/step
0～17dB
1dB/step
-14dB
+14dB
-14～+14dB,
2dB/ste
p
-14～+14dB,
2dB/step
-14dB
+14dB
VCC
VEE
OUTPUT GAIN/TONE ON
OUTPUT GAIN ON
VOLUME DIRECT
Fig.9 Output Voltage - Input Voltage Fig.10 Total Harmonic Distortion -
Input Voltage
Fig.8 Circuit Current - Voltage Supply
Fig.11 Input Gain - F r eque ncy Fig.12 Output Gain - Frequency Fig.13 Output Noise Voltage -
Power Supply Voltage
Fig.17 REC Total Harmonic
Distortion - Input Voltage Fig.18 REC Voltage Gain -
Frequency
Fig.14 Bass Gain - Frequency Fig.15 Treble Gain - Frequency Fig.16 REC Output Voltage -
Input Voltage
16/17
BD3816K1,BD3817KS
www.rohm.com 2010.06 - Rev.A
© 2010 ROHM Co., Ltd. All rights reserved.
Technical Note
●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 c onstants 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 ope rating temperat ure 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, su ch 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 lo wer voltage than the VEE pin, including transient phenomena.
5. Thermal design
Perform thermal design, in which th ere are adequate marg ins, by taking into account the power dissipation (Pd) in ac tual
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 bet ween 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. Operating Voltage Range and Operating Temperature Range
The circuit functional op erations are guaranteed within the Operatin g Voltage Range and Operating Temperature Range.
The standard values of electrical characteristics, however, are guaranteed under the specific conditions. Accordingly,
careful consideration of the IC characteristic variations is required to design a set of circuit.
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. Serial control
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.
1 1. Function switching
For the all functions other than Master Volume, Treble, and Bass Gain Settings, use MUTE on the set.
17/17
BD3816K1,BD3817KS
www.rohm.com 2010.06 - Rev.A
© 2010 ROHM Co., Ltd. All rights reserved.
Technical Note
●Ordering part number
B D 3 8 1 6 K 1
Part No. Part No.
3816
3817
Package
K1: QFP80
KS: SQFP100
Packaging and forming specific ation
None:T ray
(Unit : mm)
QFP80
0.15
0.8
0.05
18.0±0.3
14.0±0.2
0.35±0.1
24.0±0.3
20.0±0.2
80
65
124
25
40
4164
2.7±0.1
1.2
0.15±0.1
∗ Order quantity needs to be multiple of the minimum quantity.
<Tape and Reel information>
Tray (with dry pack)Container
Quantity
Direction of feed 500pcs
Direction of product is fixed in a tray
1pin
(Unit : mm)
SQFP100
0.65
51
50
31
81
100
130
20.0±0.2
24.0±0.3
14.0±0.2
18.0±0.3
80
0.3±0.1
0.15±0.1
1.2
0.05
2.7±0.1
0.15
∗ Order quantity needs to be multiple of the minimum quantity.
<Tape and Reel information>
Tray (with dry pack)Container
Quantity
Direction of feed 500pcs
Direction of product is fixed in a tray
1pin
Datasheet
Datasheet
Notice - GE Rev.002
© 2014 ROHM Co., Ltd. All rights reserved.
Notice
Precaution on using ROHM Products
1. Our Products are designed and manufactured for application in ordinary electronic equipments (such as AV equipment,
OA equipment, telecommunication equipment, home electronic appliances, amusement equipment, etc.). If you
intend to use our Products in devices requiring extremely high reliability (such as medical equipment (Note 1), transport
equipment, traffic equipment, aircraft/spacecraft, nuclear power controllers, fuel controllers, car equipment including car
accessories, safety devices, etc.) and whose malfunction or failure may cause loss of human life, bodily injury or
serious damage to property (“Specific Applications”), please consult with the ROHM sales representative in advance.
Unless otherwise agreed in writing by ROHM in advance, ROHM shall not be in any way responsible or liable for any
damages, expenses or losses incurred by you or third parties arising from the use of any ROHM’s Products for Specific
Applications.
(Note1) Medical Equipment Classification of the Specific Applications
JAPAN USA EU CHINA
CLASSⅢ CLASSⅢ CLASSⅡb CLASSⅢ
CLASSⅣ CLASSⅢ
2. ROHM designs and manufactures its Products subject to strict quality control system. However, semiconductor
products can fail or malfunction at a certain rate. Please be sure to implement, at your own responsibilities, adequate
safety measures including but not limited to fail-safe design against the physical injury, damage to any property, which
a failure or malfunction of our Products may cause. The following are examples of safety measures:
[a] Installation of protection circuits or other protective devices to improve system safety
[b] Installation of redundant circuits to reduce the impact of single or multiple circuit failure
3. Our Products are designed and manufactured for use under standard conditions and not under any special or
extraordinary environments or conditions, as exemplified below. Accordingly, ROHM shall not be in any way
responsible or liable for any damages, expenses or losses arising from the use of any ROHM’s Products under any
special or extraordinary environments or conditions. If you intend to use our Products under any special or
extraordinary environments or conditions (as exemplified below), your independent verification and confirmation of
product performance, reliability, etc, prior to use, must be necessary:
[a] Use of our Products in any types of liquid, including water, oils, chemicals, and organic solvents
[b] Use of our Products outdoors or in places where the Products are exposed to direct sunlight or dust
[c] Use of our Products in places where the Products are exposed to sea wind or corrosive gases, including Cl2,
H2S, NH3, SO2, and NO2
[d] Use of our Products in places where the Products are exposed to static electricity or electromagnetic waves
[e] Use of our Products in proximity to heat-producing components, plastic cords, or other flammable items
[f] Sealing or coating our Products with resin or other coating materials
[g] Use of our Products without cleaning residue of flux (even if you use no-clean type fluxes, cleaning residue of
flux is recommended); or Washing our Products by using water or water-soluble cleaning agents for cleaning
residue after soldering
[h] Use of the Products in places subject to dew condensation
4. The Products are not subject to radiation-proof design.
5. Please verify and confirm characteristics of the final or mounted products in using the Products.
6. In particular, if a transient load (a large amount of load applied in a short period of time, such as pulse. is applied,
confirmation of performance characteristics after on-board mounting is strongly recommended. Avoid applying power
exceeding normal rated power; exceeding the power rating under steady-state loading condition may negatively affect
product performance and reliability.
7. De-rate Power Dissipation (Pd) depending on Ambient temperature (Ta). When used in sealed area, confirm the actual
ambient temperature.
8. Confirm that operation temperature is within the specified range described in the product specification.
9. ROHM shall not be in any way responsible or liable for failure induced under deviant condition from what is defined in
this document.
Precaution for Mounting / Circuit board design
1. When a highly active halogenous (chlorine, bromine, etc.) flux is used, the residue of flux may negatively affect product
performance and reliability.
2. In principle, the reflow soldering method must be used; if flow soldering method is preferred, please consult with the
ROHM representative in advance.
For details, please refer to ROHM Mounting specification
Datasheet
Datasheet
Notice - GE Rev.002
© 2014 ROHM Co., Ltd. All rights reserved.
Precautions Regarding Application Examples and External Circuits
1. If change is made to the constant of an external circuit, please allow a sufficient margin considering variations of the
characteristics of the Products and external components, including transient characteristics, as well as static
characteristics.
2. You agree that application notes, reference designs, and associated data and information contained in this document
are presented only as guidance for Products use. Therefore, in case you use such information, you are solely
responsible for it and you must exercise your own independent verification and judgment in the use of such information
contained in this document. ROHM shall not be in any way responsible or liable for any damages, expenses or losses
incurred by you or third parties arising from the use of such information.
Precaution for Electrostatic
This Product is electrostatic sensitive product, which may be damaged due to electrostatic discharge. Please take proper
caution in your manufacturing process and storage so that voltage exceeding the Products maximum rating will not be
applied to Products. Please take special care under dry condition (e.g. Grounding of human body / equipment / solder iron,
isolation from charged objects, setting of Ionizer, friction prevention and temperature / humidity control).
Precaution for Storage / Transportation
1. Product performance and soldered connections may deteriorate if the Products are stored in the places where:
[a] the Products are exposed to sea winds or corrosive gases, including Cl2, H2S, NH3, SO2, and NO2
[b] the temperature or humidity exceeds those recommended by ROHM
[c] the Products are exposed to direct sunshine or condensation
[d] the Products are exposed to high Electrostatic
2. Even under ROHM recommended storage condition, solderability of products out of recommended storage time period
may be degraded. It is strongly recommended to confirm solderability before using Products of which storage time is
exceeding the recommended storage time period.
3. Store / transport cartons in the correct direction, which is indicated on a carton with a symbol. Otherwise bent leads
may occur due to excessive stress applied when dropping of a carton.
4. Use Products within the specified time after opening a humidity barrier bag. Baking is required before using Products of
which storage time is exceeding the recommended storage time period.
Precaution for Product Label
QR code printed on ROHM Products label is for ROHM’s internal use only.
Precaution for Disposition
When disposing Products please dispose them properly using an authorized industry waste company.
Precaution for Foreign Exchange and Foreign Trade act
Since our Products might fall under controlled goods prescribed by the applicable foreign exchange and foreign trade act,
please consult with ROHM representative in case of export.
Precaution Regarding Intellectual Property Rights
1. All information and data including but not limited to application example contained in this document is for reference
only. ROHM does not warrant that foregoing information or data will not infringe any intellectual property rights or any
other rights of any third party regarding such information or data. ROHM shall not be in any way responsible or liable
for infringement of any intellectual property rights or other damages arising from use of such information or data.:
2. No license, expressly or implied, is granted hereby under any intellectual property rights or other rights of ROHM or any
third parties with respect to the information contained in this document.
Other Precaution
1. This document may not be reprinted or reproduced, in whole or in part, without prior written consent of ROHM.
2. The Products may not be disassembled, converted, modified, reproduced or otherwise changed without prior written
consent of ROHM.
3. In no event shall you use in any way whatsoever the Products and the related technical information contained in the
Products or this document for any military purposes, including but not limited to, the development of mass-destruction
weapons.
4. The proper names of companies or products described in this document are trademarks or registered trademarks of
ROHM, its affiliated companies or third parties.
DatasheetDatasheet
Notice – WE Rev.001
© 2014 ROHM Co., Ltd. All rights reserved.
General Precaution
1. Before you use our Pro ducts, you are requested to care fully read this document and fully understand its contents.
ROHM shall n ot be in an y way responsible or liabl e for fa ilure, malfunction or acci dent arising from the use of a ny
ROHM’s Products against warning, caution or note contained in this document.
2. All information contained in this docume nt is current as of the issuing date and subj ect to change without any prior
notice. Before purchasing or using ROHM’s Products, please confirm the la test information with a ROHM sale s
representative.
3. The information contained in this doc ument is provi ded on an “as is” basis and ROHM does not warrant that all
information contained in this document is accurate an d/or error-free. ROHM shall not be in an y way responsible or
liable for any damages, expenses or losses incurred by you or third parties resulting from inaccur acy or errors of or
concerning such information.
Datasheet
Part Number bd3817ks
Package SQFP100
Unit Quantity 500
Minimum Package Quantity 50
Packing Type Tray
Constitution Materials List inquiry
RoHS Yes
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