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www.rohm.com 2011.04 - Rev.B
© 2010 ROHM Co., Ltd. All rights reserved.
Sound Processors for Car Audios
General-Purpose Electronic Volume
with Built-in Advanced Switch
BD3460FS,BD3461FS,BD3464FV,BD3465FV
●Description
BD3460FS, BD3461FS, BD3464FV, BD3465FV is 4ch / 6ch electronic volume which has audio efficiency of the industry
best level. It has 『Outside sound mixing function (with volume)』(BD3 461FS, BD3465FV) in favorite channel to mixing of
the portable telephone and car navigation’s guide sound. Also, which has 『Ground isolation amplifier』(BD3460FS,
BD3461FS) when connecting with the outside voice inputs such as portable audio and car navigation. It is lineup and
possible to be chosen to the use by it. Also, Rohm has the volume s witching shock sound preventio n technique “Advanc ed
switch”. Therefore, it supports the construct of the high quality car audio space by the simple control.
●Features
1) Reduce switching noise of volume by using advanced switch circuit. (Possible to control all steps)
2) Low distortion (0.0004% t yp), Low noise (1.6μVrms)
3) Mixing for external sound monaural 3ch. It is possible that is mixed to front/Rear/Sub output (BD3461FS)
Front/Rear output (BD3465FV) Lch/Rch independentl y.
4) Built-in 3ch ATT for external sound mixing that can be controlled independently. (BD3461FS, BD3465FV)
5) Built-in buffered stereo ground isolation amplifier inputs, ideal for external input. (BD3460 FS, BD3461FS)
6) Bi-CMOS process is suitable for the design of low current and low energy. And it provides more quality
for small scale regulator and heat in a set.
7) Package is SSOP-A24,SSOP-B20. Putting input-terminals together and output-terminals together can make
PCB layout easier and can m akes are a of PCB smaller.
8) It is possible to control by 3.3V / 5V for I2C BUS.
●Applications
It is the optimal for the car audio. Besides, it is possi ble to use for the car navigation, audio eq uipment of mini Compo, micro
Compo, DVD, TV etc with all kinds.
●Line up matrix Function BD3460FS BD3461FS BD3464FV BD3465FV
Volume 6ch 6ch 4ch 4ch
Input for external sound mixi ng - ○ - ○
GND isolation amplifier ○ ○ - -
Package SSOP-A24 SSOP-A24 SSOP-B20 SSOP-B20
No.11085EBT09
Technical Note
2/28
BD3460FS,BD3461FS,BD3464FV,BD3465FV
www.rohm.com 2011.04 - Rev.B
© 2010 ROHM Co., Ltd. All rights reserved.
●Absolute maximum ratings (Ta=25℃)
Parameter Symbol Ratings Unit
Power supply Voltage VCC 10.0V V
Input voltage VIN VCC+0.3 ~ GND-0.3 V
Power Dissipation
BD3460FS
BD3461FS Pd 1000 ※1 mW
BD3464FV
BD3465FV 810 ※2
Storage Tempe r ature Tastg -55 ~ +150 ℃
※1 This value decreases 8mW/℃ for Ta=25℃ or more. Thermal resistance θja=125.0 (℃/W)
※2 This value decreases 6.5mW/℃ for Ta=25℃ or more. Thermal resistance θja=153.8 (℃/W)
ROHM standard board shall be mounted.
ROHM Standard board Size：70×70×1.6(㎣)
material：FR4 grass epoxy board(3% or less of copper foil area)
●Operating conditions
Parameter Symbol Ratings Unit
Min. Typ Max.
Power supply Voltage VCC 7.0 - 9.5 V
Temperature Topr -40 - +85 ℃
Technical Note
3/28
BD3460FS,BD3461FS,BD3464FV,BD3465FV
www.rohm.com 2011.04 - Rev.B
© 2010 ROHM Co., Ltd. All rights reserved.
●Electrical cha r acteristics
Unless specified particularly, Ta=25℃, VCC=8.5V, f=1kHz, Vin=1Vrms, Rg=600Ω, RL=10kΩ, INF1 input, Volume 0dB
BLOCK
Parameter Symbol Limit Unit Condition
Min. Typ. Max.
GENERAL
Current upon no signal IQ － 25 40 mA No signal
Voltage gain GV -1.5 0 1.5 dB Gv=20log(VOUT/VIN)
Channel balance CB -1.5 0 1.5 dB CB=GV1-GV2
To tal harmonic distortion THD － 0.0004 0.05 % VOUT=1Vrms
BW=400-30kHz
Output noise voltage ＊ VNO － 1.9 10 μVrms Rg=0Ω
BW=IHF-A
Residual output noise voltage ＊ VNOR － 1.6 10 μVrms Volume=-∞dB
Rg=0Ω
BW=IHF-A
Cross-talk between channels ＊ CTC － -105 -90 dB
Rg=0Ω
CTC=20log(VOUT/VIN)
BW=IHF-A
Ripple rejection RR － -80 -40 THD f=100Hz
VRR=100mVrms
RR=20log(VOUT/VCCIN)
DIFF
(BD3460FS,
BD3461FS)
Input impedance RIN D 70 100 130 kΩ
Common mode rejection ratio ＊ CMRR 50 65 － dB
PIN and NIN input
CMRR=20log10(VIN/VOUT)
BW=IHF-A
VOLUME
Input impedance RIN V 70 100 130 kΩ
Maximum input voltage VIM 2 2.35 － Vrms VIM at THD+N(VOUT)=1%
BW=400-30kHz
Maximum gain GV BST 21 23 25 dB
Gain=23dB
VIN=100mVrms
GV=20log(VOUT/VIN)
Maximum attenuation ＊ G
V MIN － -109 -90 dB
Volume=-∞dB
Gv=20log(VOUT/VIN)
BW=IHF-A
Step resolution GV STEP － 1 － dB GAIN&ATT=+23～-79dB
Gain set error GV ERR -2 0 2 dB
Gain=+1～+23dB
Attenuation set error 1 GV ERR1 -2 0 2 dB
ATT=-1～-15dB
Attenuation set error 2 GV ERR2 -3 0 3 dB
ATT=-16～-47dB
Attenuation set error 3 GV ERR3 -4 0 4 dB
ATT=-48～-79dB
Output impedance ROUT - － 50 Ω Vin=100mVrms
Maximum output voltage VOM 2 2.35 － Vrms THD+N=1%
BW=400-30kHz
MIXING ATT
(BD3461FS,
BD3465FS)
Input impedance RIN M 70 100 130 kΩ
Maximum attenuation ＊ G
M MIN － -90 － dB
GM=20log(VOUT/VIN)
BW=IHF-A, ATT=-∞dB
Step resolution 1 GM STEP1 － 8 － dB ATT=0～-32dB
Step resolution 2 GM STEP2 － 16 － dB ATT=-32～-64dB
VP-9690A(Average value detection, effective value display) filter by Matsushita Communication is used for ＊ measurement.
Phase between input / output is same.
Technical Note
4/28
BD3460FS,BD3461FS,BD3464FV,BD3465FV
www.rohm.com 2011.04 - Rev.B
© 2010 ROHM Co., Ltd. All rights reserved.
●Electrical c ha racteristic curves (Reference data)
1
10
100
-40 -30 -20 -10 0 10
-45
-40
-35
-30
-25
-20
-15
-10
-5
0
5
10 100 1k 10k 100k
-110
-100
-90
-80
-70
-60
-50
-40
-30
10 100 1k 10k 100k
-100
-80
-60
-40
-20
0
10 100 1k 10k 100k
-10
-9
-8
-7
-6
-5
-4
-3
-2
-1
0
1
2
10 100 1k 10k 100k 1000k
-120
-100
-80
-60
-40
-20
0
10 100 1k 10k 100k
-5
0
5
10
15
20
25
30
10 100 1k 10k 100k
0
10
20
30
40
50
0246810
COMMON MODE REJECTION RATIO:CMRR[dB]
Fig.12 CMRR vs freq
(BD3460FS, BD3461FS)
FREQUENCY :f
[
Hz
]
TOTAL HARMONIC DISTORTION:THD+N[dB]
Fig.11 Thd vs freq
FREQUENCY :f
[
Hz
]
VOLTAGE GAIN:Gv[dB]
Fig.10 Volume gain of large
output level vs freq
FREQUENCY :f [Hz]
CROSS-TALK BETWEEN CHANNELS:CTC[dB]
Fig.7 Cross-Talk vs Freq
FREQUENCY :f [Hz]
RIPPLE REJECTION :RR[dB]
Fig.8 Ripple Rejection Ratio
FREQUENCY :f [Hz]
VOLUME ATTENUATION:ATT [dB]
Fig.6 Volume Gain vs freq 2
(-41～-79dB)
FREQUENCY :f
[
Hz
]
SUPPLY VOLTAGE : VCC
[
V
]
TOTAL HARMONIC DISTORTION:THD+N[%]
Fig.2 Thd vs Vo
OUTPUT VOLTAGE : Vo
[
Vrms
]
VOLTAGE GAIN : Gv[dB]
Fig.3 Gain vs Freq
FREQUENCY :f
[
Hz
]
VOLUME GAIN : Gv[dB]
Fig.4 Volume Gain vs Freq
(0～+23dB)
FREQUENCY :f
[
Hz
]
VOLUME A TTENUA TION:ATT[dB]
Fig.5 Volume Gain vs freq 1
(0～-40dB)
FREQUENCY :f
[
Hz
]
OUTPUT NOISE :VNO[μVrms]
Fig.9 Volume Gain vs Noise
VOLUME A TTENUA TION :A TT
[
dB
]
Fig.1 Iq vs Vcc
Gain=0dB
VCC=8.5V
Vo=2Vrms
Volume=0dB
-5
-4
-3
-2
-1
0
1
2
3
4
5
10 100 1k 10k 100k
QUIESCENT CURRENT:IQ[mA]
0.0001
0.001
0.01
0.1
1
10 100 1k 10k 100k
-80
-70
-60
-50
-40
-30
-20
-10
0
10 100 1k 10k 100k
0.0001
0.001
0.01
0.1
1
10
0.001 0.01 0.1 1 10
Technical Note
5/28
BD3460FS,BD3461FS,BD3464FV,BD3465FV
www.rohm.com 2011.04 - Rev.B
© 2010 ROHM Co., Ltd. All rights reserved.
●Electrical characteristic curves (Reference data) – Continued
0.0
0.5
1.0
1.5
2.0
2.5
100 1000 10000 100000
MAXIMUM OUTPUT VOLTAGE: VO[Vrms]
Fig.13 Rload vs Vo
LOAD RESISTANCE : RL
[
Ω
]
Fig.14 Advanced Switch 1
OUTF1
OUTF2
Fig.15 Advanced Switch 2
OUTF1
OUTF2
-100
-80
-60
-40
-20
0
20
10 100 1k 10k 100k
MIXING A TTENUA TION:ATT[dB]
Fig.16 Mixing attenuation vs freq
(BD3461FS, BD3465FV)
FREQUENCY :f [Hz]
Technical Note
6/28
BD3460FS,BD3461FS,BD3464FV,BD3465FV
www.rohm.com 2011.04 - Rev.B
© 2010 ROHM Co., Ltd. All rights reserved.
I2C BUS LOGIC
100k
22 21 20 19 18 17 16 15 14 13
3 4 5 6 7 8 9 10 11 12
100k 100k
24 23
1 2
VCC/2
100k 100k 100k
VCC
GND
■6ch Volume
+23dB～-79ｄB/1dB step,-∞
★：Advanced switch circuit
Volume★
Volume★
Volume★
Volume★
Volume★
Volume★
100k 100k
BUFFERED
GND ISO AMP
BUFFERED
GND ISO AMP
100k 100k
●Block diagr am and pin configuration
Fig.17 BD3460FS
Descriptions of terminal
Terminal
No. Terminal
Name Description Terminal
No. Terminal
Name Description
1 INF1
Front input terminal of 1ch 13 OUTS2 Subwoofer output terminal of 2ch
2 INF2
Front input terminal of 2ch 14 OUTS1 Subwoofer output terminal of 1ch
3 INR1
Rear input terminal of 1ch 15 OUTR2 Rear output terminal of 2ch
4 INR2
Rear input terminal of 2ch 16 OUTR1 Rear output terminal of 1ch
5 INS1
Subwoofer input terminal of 1ch 17 OUTF2 Front output terminal of 2ch
6 INS2
Subwoofer input terminal of 2ch 18 OUTF1 Front output terminal of 1ch
7 PIN2
DIFF amp positive input terminal of 2ch 19 VCC
Power supply terminal
8 NIN2
DIFF amp negative input terminal of 2ch 20 CS
Chip select terminal
9 DIFFOUT2
DIFF amp output terminal of 2ch 21 SCL
I2C Communication clock terminal
10 DIFFOUT1
DIFF amp output terminal of 1ch 22 SDA
I2C Communication data terminal
11 NIN1
DIFF amp negative input terminal of 1ch 23 GND
GND terminal
12 PIN1
DIFF amp positive input terminal of 1ch 24 FIL
VCC/2 terminal
Technical Note
7/28
BD3460FS,BD3461FS,BD3464FV,BD3465FV
www.rohm.com 2011.04 - Rev.B
© 2010 ROHM Co., Ltd. All rights reserved.
I2C BUS LOGIC
100k
22 21 20 19 18 17 16 15 14 13
3 4 5 6 7 8 9 10 11 12
100k 100k 100k 100k
24 23
1 2
VCC/2
100k 100k 100k
BUFFERED
GND ISO AMP
VCC
GND
100k 100k 100k
Independent
control
■6ch Volume
+23dB～-79ｄB/1dB step,-∞
★：Advanced switch circuit
■Mixing ATT
0dB～-32dB/8dB step,
-32dB～-64dB/16dB step,-∞
Fig.18 BD3461FS
Descriptions of terminal
Terminal
No. Terminal
Name Description Terminal
No. Terminal
Name Description
1 INF1
Front input terminal of 1ch 13 OUTS2 Subwoofer output terminal of 2ch
2 INF2
Front input terminal of 2ch 14 OUTS1 Subwoofer output terminal of 1ch
3 INR1
Rear input terminal of 1ch 15 OUTR2 Rear output terminal of 2ch
4 INR2
Rear input terminal of 2ch 16 OUTR1 Rear output terminal of 1ch
5 INS1
Subwoofer input terminal of 1ch 17 OUTF2 Front output terminal of 2ch
6 INS2
Subwoofer input terminal of 2ch 18 OUTF1 Front output terminal of 1ch
7 EXT1
External input terminal of 1ch 19 VCC
Power supply terminal
8 EXT2
External input terminal of 2ch 20 CS
Chip select terminal
9 EXT3
External input terminal of 3ch 21 SCL
I2C Communication clock terminal
10 DIFFOUT
DIFF amp output terminal 22 SDA
I2C Communication data terminal
11 NIN
DIFF amp negative input terminal 23 GND
GND terminal
12 PIN
DIFF amp positive input terminal 24 FIL
VCC/2 terminal
Technical Note
8/28
BD3460FS,BD3461FS,BD3464FV,BD3465FV
www.rohm.com 2011.04 - Rev.B
© 2010 ROHM Co., Ltd. All rights reserved.
I2C BUS LOGIC
100k
18 17 16 15 14 13 12 11
3 4 5 6 7 8 9 10
100k 100k
Volume★
Volume★
20 19
1 2
Volume★
100k
VCC
VCC/2 GND
Volume★
■4ch Volume
+23dB～-79ｄB/1dB step,-∞
★：Advanced switch circuit
Fig.19 BD3464FV
Descriptions of terminal
Termina
l No. Terminal
Name Description Terminal
No. Terminal
Name Description
1 INF1 Front input terminal of 1ch 11 OUTR2 Rear output terminal of 2ch
2 INF2 Front input terminal of 2ch 12 OUTR1 Rear output terminal of 1ch
3 INR1 Rear input terminal of 1ch 13 OUTF2 Front output terminal of 2ch
4 INR2 Rear input terminal of 2ch 14 OUTF1 Front output terminal of 1ch
5 NC 15 VCC Power supply terminal
6 NC 16 CS Chip select terminal
7 TEST1 Test Pin 17 SCL I2C Communication clock terminal
8 TEST2 Test Pin 18 SDA I2C Communication data terminal
9 TEST3 Test Pin 19 GND GND terminal
10 NC 20 FIL VCC/2 terminal
Technical Note
9/28
BD3460FS,BD3461FS,BD3464FV,BD3465FV
www.rohm.com 2011.04 - Rev.B
© 2010 ROHM Co., Ltd. All rights reserved.
I2C BUS LOGIC
100k
18 17 16 15 14 13 12 11
345678910
100k 100k
Volume★
■4ch Volume
+23dB～-79ｄB/1dB step,-∞
★：Advanced switch circuit
■Mixing ATT
+0dB～-32dB/8dB step,
-32dB～-64dB/16dB step,-∞
20 19
1 2
100k
VCC
100k 100k 100k
VCC/2 GND
Independent
control
Volume★
Volume★
Volume★
Mixing ATT
Mixing ATT
Mixing ATT
Fig.20 BD3465FV
Descriptions of terminal
Terminal
No. Terminal
Name Description Terminal
No. Terminal
Name Description
1 INF1
Front input terminal of 1ch 11 OUTR2 Rear output terminal of 2ch
2 INF2
Front input terminal of 2ch 12 OUTR1 Rear output terminal of 1ch
3 INR1
Rear input terminal of 1ch 13 OUTF2 Front output terminal of 2ch
4 INR2
Rear input terminal of 2ch 14 OUTF1 Front output terminal of 1ch
5 NC 15 VCC
Power supply terminal
6 NC 16 CS
Chip select terminal
7 EXT1
External input terminal of 1ch 17 SCL
I2C Communication clock terminal
8 EXT2
External input terminal of 2ch 18 SDA
I2C Communication data terminal
9 EXT3
External input terminal of 3ch 19 GND
GND terminal
10 NC 20 FIL
VCC/2 terminal
Technical Note
10/28
BD3460FS,BD3461FS,BD3464FV,BD3465FV
www.rohm.com 2011.04 - Rev.B
© 2010 ROHM Co., Ltd. All rights reserved.
ｔBUF
：4us
ｔHD;STA
：2us
ｔHD;DAT
：1us
ｔLOW
：3us
ｔHIGH
：1us
ｔSU;DAT
：1us
ｔSU;STO
：2us
SCL clock frequency：250kHz
SCL
SDA
●Timing Chart
CONTROL SIGNAL SPECIFICATION
(1) Electrical specifications and timing for bus lines and I/O stages
Fig.21 Definition of timing on the I2C-bus
Table 1 Characteristics of the SDA and SCL bus lines for I2C-bus devices
(Unless specified particularly, Ta=25℃, VCC=8.5V)
Parameter Symbol
Fast-mode I
2
C-bus Unit
Min Max
1 SCL clock frequency fSCL 0 400 kHz
2 Bus free time between a STOP and START condition tBUF 1.3 － μS
3 Hold time (re peated) START condition. After this period, the
first clock pulse is generated tHD;STA 0.6 － μS
4 LOW period of the SCL clock tLOW 1.3 － μS
5 HIGH period of the SCL clock tHIGH 0.6 － μS
6 Set-up time for a repeated START condition tSU;STA 0.6 － μS
7 Data hold time tHD;DAT 0* － μS
8 Data set-up time tSU; DAT 100 － ns
9 Set-up time for STOP condition tSU;STO 0.6 － μS
All values referred to VIH min. and VIL max. Levels (see Table 2).
* A device must internally provide a hold time of at least 300 ns for the SDA signal (referred to the VIH min. of the SCL signal) in order to bridge the undefined
region of the falling edge of SCL.
About 7(tHD;DAT), 8(tSU;DAT), make it the setup which a margin is fully in .
Table 2 Characteristics of the SDA and SCL I/O stages for I2C-bus devices
Parameter Symbol
Fast-mode I
2
C-bus Unit
Min Max
10 LOW level input voltage VIL -0.5 1 V
11 HIGH level input voltage VIH 2.3 － V
12 Pulse width of spikes which must be suppressed by the input
filter. Tsp 0 50 ns
13 LOW level output voltage (open drain or ope n collector):
at 3mA sink current VOL1 0 0.4 V
14 Input current each I/O pin with an input voltage between 0.4V
and 0.9 VDDmax. Ii -10 10 μA
SDA
S
SCL
tLOW tR
tHD;DAT
P
tHD;STA tHIGH
tBUF
tF
tSU;DAT tSU;STA tSU;STO
tSP
tHD;STA
Sr
P
Fig.22 A command timing example in the I
2
C data transmission
Technical Note
11/28
BD3460FS,BD3461FS,BD3464FV,BD3465FV
www.rohm.com 2011.04 - Rev.B
© 2010 ROHM Co., Ltd. All rights reserved.
(2)I2C BUS FORMAT
MSB LSB MSB LSB MSB LSB
S Slave Address A Select Address A Data A P
1bit 8bit 1bit 8bit 1bit 8bit 1bit 1bit
S = Start conditions (Recognition of start bit)
Slave Address = Recognition of slave address. 7 bits in upper order ar e voluntary.
The least significant bit is “L” due to writing.
A = ACKNOWLEDGE bit (Recognition of acknowledgement)
Select Address = Select every of volume, bass and treble.
Data = Data on every volume and tone.
P = Stop condition (Recognition of stop bit)
(3)I2C BUS Interface Protocol
1)Basic form
S Slave Address A Select Address A Data A P
MSB LSB MSB LSB MSB LSB
2)Automatic increment (Select Address increases (+1) acco rding to the number of data.
S Slave Address A Select Address A Data1 A Data2 A ････ DataN A P
MSB LSB MSB LSB MSB LSB MSB LSB MSB LSB
(Example) ①Data1 shall be set as data of address specified by Sel ect Address.
②Data2 shall be set as data of address speci fied by Select Address +1.
③DataN shall be set as data of address specified by Select Address +N-1.
3)Configuration unavailable for transmission (In this case, only Select Address1 is set.
S Slave Address A Select Address1 A Data A Select Address 2 A Data A P
MSB LSB MSB LSB MSB LSB MSB LSB MSB LSB
(Note)If any data is transmitted as Select Address 2 ne xt to data, it is recognized
as data, not as Select Address 2.
(4)Slave address
Because the slave address can be cha ng ed by the setting of CS, it is possible to use two chips at the same time on
identical BUS. MSB
LSB
SEL Voltage Condition A6 A5 A4 A3 A2 A1 A0 R/W
GND ～ 0.2×VCC 1 0 0 0 0 0 0 0
0.8×VCC ～ VCC 1 0 0 0 0 1 0 0
Establish the voltage of CS in the condition to have been defined.
80H
84H
Technical Note
12/28
BD3460FS,BD3461FS,BD3464FV,BD3465FV
www.rohm.com 2011.04 - Rev.B
© 2010 ROHM Co., Ltd. All rights reserved.
(5)Select Address & Data
BD3460FS, BD3464FV
Items to be set
Select
Address
(
hex
)
MSB Data LSB
D7 D6 D5 D4 D3 D2 D1 D0
Initial Setup 1 01 0 0 0 0 0 0 0 0
Volume 1ch Front 28 Volume Gai n / Attenuation
Volume 2ch Front 29 Volume Gai n / Attenuation
Volume 1ch Rear 2A Volume Gain / Attenuation
Volume 2ch Rear 2B Volume Gain / Attenuation
Volume 1ch Sub 2C Volume Gain / Attenuation
Volume 2ch Sub 2D Volume Gain / Attenuation
Test Mode F0 0 0 0 0 0 0 0 0
System Reset FE 1 0 0 0 0 0 0 1
Advanced switch
(Note)
1.In function changing of the hatching part, it works Advance d switch.
2.Select Address 2 C & 2 D can set only BD3460FS. Set all data of BD3464FV to "1".
3.Upon continuous data tran sfer, the Select Address is circulated by the auto matic in crement fu nction , as show n below.
BD3461FS, BD3465FV
Items to be set
Select
Address
(hex)
MSB Data LSB
D7 D6 D5 D4 D3 D2 D1 D0
Initial Setup 1 01 0 0000 1 0 0
Volume 1ch Front 28 Volume Gai n / Attenuation
Volume 2ch Front 29 Volume Gai n / Attenuation
Volume 1ch Rear 2A Volume Gain / Attenuation
Volume 2ch Rear 2B Volume Gain / Attenuation
Volume 1ch Sub 2C Volume Gain / Attenuation
Volume 2ch Sub 2D Volume Gain / Attenuation
EXT 1 ON/OFF 30 EXT1
S2 EXT1
S1 EXT1
R2 EXT1
R1 EXT1
F2 EXT1
F1 0 0
EXT 2 ON/OFF 31 EXT2
S2 EXT2
S1 EXT2
R2 EXT2
R1 EXT2
F2 EXT2
F1 0 0
EXT 3 ON/OFF 32 EXT3
S2 EXT3
S1 EXT3
R2 EXT3
R1 EXT3
F2 EXT3
F1 0 0
EXT 1 ATT 33 0 0 0 0 0 EXT1 Attenuation
EXT 2 ATT 34 0 0 0 0 0 EXT2 Attenuation
EXT 3 ATT 35 0 0 0 0 0 EXT3 Attenuation
Test Mode F0 0 0 0 0 0 0 0 0
System Reset FE 1 0 0 0 0 0 0 1
Advanced switch
(Note)
1. In function changing of the hatching part, it works Advanced switch.
2. Select Address 2 C & 2 D can set only BD3461FS. Set all data of BD3465FV to "1".
3. Upon continuous data transfer, the Select Address is circulated by the automatic increment function, as sho wn belo w.
4. When changing “EXT = ON/OFF”, it is not corresponded for advance switch. Therefore, please do the measure that
applies mute on the side of a set at the time of these setting changes
→
01
→
28
→
29
→
2A
→
2B
→
2C
→
2D
→
30
→
31
→
32
→
33
→
34
→
35
→
01
→
28
→
29
→
2A
→
2B
→
2C
→
2D
Technical Note
13/28
BD3460FS,BD3461FS,BD3464FV,BD3465FV
www.rohm.com 2011.04 - Rev.B
© 2010 ROHM Co., Ltd. All rights reserved.
Select address 28, 29, 2A, 2B, 2C 2D(hex)
Gain & ATT
MSB Volume Gain/Attenuation LSB
D7 D6 D5 D4 D3 D2 D1 D0
Prohibition ※
0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 1
： ： ： ： ： ： ： ：
0 1 1 0 1 0 0 0
23dB 0 1 1 0 1 0 0 1
22dB 0 1 1 0 1 0 1 0
21dB 0 1 1 0 1 0 1 1
： ： ： ： ： ： ： ： ：
-78dB 1 1 0 0 1 1 1 0
-78dB 1 1 0 0 1 1 1 0
-79dB 1 1 0 0 1 1 1 1
Prohibition ※ 1 1 0 1 0 0 0 0
： ： ： ： ： ： ： ：
1 1 1 1 1 1 1 0
-∞dB 1 1 1 1 1 1 1 1
※ Gain is set to “-∞dB” when sending “Prohibition data”.
※ Select Address 2 C & 2 D can set only BD3460FS, BD3461FS.
Set all data of BD3464FV & BD3465FV to "1".
Select address 30, 31, 32(hex)
MODE
MSB EXT1 F1 LSB
D7 D6 D5 D4 D3 D2 D1 D0
OFF EXT1
S2 EXT1
S1 EXT1
R2 EXT1
R1 EXT1
F2 0 0 0
ON 1
MODE
MSB EXT1 F2 LSB
D7 D6 D5 D4 D3 D2 D1 D0
OFF EXT1
S2 EXT1
S1 EXT1
R2 EXT1
R1 0 EXT1
F1 0 0
ON 1
MODE
MSB EXT1 R1 LSB
D7 D6 D5 D4 D3 D2 D1 D0
OFF EXT1
S2 EXT1
S1 EXT1
R2 0 EXT1
F2 EXT1
F1 0 0
ON 1
MODE
MSB EXT1 R2 LSB
D7 D6 D5 D4 D3 D2 D1 D0
OFF EXT1
S2 EXT1
S1 0 EXT1
R1 EXT1
F2 EXT1
F1 0 0
ON 1
MODE
MSB EXT1 S1 LSB
D7 D6 D5 D4 D3 D2 D1 D0
OFF EXT1
S2 0 EXT1
R2 EXT1
R1 EXT1
F2 EXT1
F1 0 0
ON 1
MODE
MSB EXT1 S2 LSB
D7 D6 D5 D4 D3 D2 D1 D0
OFF 0 EXT1
S1 EXT1
R2 EXT1
R1 EXT1
F2 EXT1
F1 0 0
ON 1
:Initial condition
Technical Note
14/28
BD3460FS,BD3461FS,BD3464FV,BD3465FV
www.rohm.com 2011.04 - Rev.B
© 2010 ROHM Co., Ltd. All rights reserved.
Select address 33, 34, 35(hex)
Gain
MSB EXT Attenuation LSB
D7 D6 D5 D4 D3 D2 D1 D0
0dB
0 0 0 0 0
0 0 0
-8dB 0 0 1
-16dB 0 1 0
-24dB 0 1 1
-32dB 1 0 0
-48dB 1 0 1
-64dB 1 1 0
-∞dB 1 1 1
※ Select Address 30, 31 32, 33, 34, 35 can set only BD3461FS & BD3465FV. :Initial condition
(6)About power on reset
At one of supply voltage circuit made initialization inside IC is built-in. Please send data to all address as initial data at
supply voltage on. And please supply mute at set side until this initial data is sent.
Item Symbol Limit Unit Condition
Min. Typ. Max.
Rise time of VCC Trise 20 － － μsec VCC rise time from 0V to 3V
VCC voltage of release
power on reset Vpor － 4.1 － V
Technical Note
15/28
BD3460FS,BD3461FS,BD3464FV,BD3465FV
www.rohm.com 2011.04 - Rev.B
© 2010 ROHM Co., Ltd. All rights reserved.
Volume gain/attenuation of the details
(dB) D7 D6 D5 D4 D3 D2 D1 D0
(dB) D7 D6 D5 D4 D3 D2 D1 D0
+23 0 1 1 0 1 0 0 1 -29 1 0 0 1 1 1 0 1
+22 0 1 1 0 1 0 1 0 -30 1 0 0 1 1 1 1 0
+21 0 1 1 0 1 0 1 1 -31 1 0 0 1 1 1 1 1
+20 0 1 1 0 1 1 0 0 -32 1 0 1 0 0 0 0 0
+19 0 1 1 0 1 1 0 1 -33 1 0 1 0 0 0 0 1
+18 0 1 1 0 1 1 1 0 -34 1 0 1 0 0 0 1 0
+17 0 1 1 0 1 1 1 1 -35 1 0 1 0 0 0 1 1
+16 0 1 1 1 0 0 0 0 -36 1 0 1 0 0 1 0 0
+15 0 1 1 1 0 0 0 1 -37 1 0 1 0 0 1 0 1
+14 0 1 1 1 0 0 1 0 -38 1 0 1 0 0 1 1 0
+13 0 1 1 1 0 0 1 1 -39 1 0 1 0 0 1 1 1
+12 0 1 1 1 0 1 0 0 -40 1 0 1 0 1 0 0 0
+11 0 1 1 1 0 1 0 1 -41 1 0 1 0 1 0 0 1
+10 0 1 1 1 0 1 1 0 -42 1 0 1 0 1 0 1 0
+9 0 1 1 1 0 1 1 1 -43 1 0 1 0 1 0 1 1
+8 0 1 1 1 1 0 0 0 -44 1 0 1 0 1 1 0 0
+7 0 1 1 1 1 0 0 1 -45 1 0 1 0 1 1 0 1
+6 0 1 1 1 1 0 1 0 -46 1 0 1 0 1 1 1 0
+5 0 1 1 1 1 0 1 1 -47 1 0 1 0 1 1 1 1
+4 0 1 1 1 1 1 0 0 -48 1 0 1 1 0 0 0 0
+3 0 1 1 1 1 1 0 1 -49 1 0 1 1 0 0 0 1
+2 0 1 1 1 1 1 1 0 -50 1 0 1 1 0 0 1 0
+1 0 1 1 1 1 1 1 1 -51 1 0 1 1 0 0 1 1
0 1 0 0 0 0 0 0 0 -52 1 0 1 1 0 1 0 0
-1 1 0 0 0 0 0 0 1 -53 1 0 1 1 0 1 0 1
-2 1 0 0 0 0 0 1 0 -54 1 0 1 1 0 1 1 0
-3 1 0 0 0 0 0 1 1 -55 1 0 1 1 0 1 1 1
-4 1 0 0 0 0 1 0 0 -56 1 0 1 1 1 0 0 0
-5 1 0 0 0 0 1 0 1 -57 1 0 1 1 1 0 0 1
-6 1 0 0 0 0 1 1 0 -58 1 0 1 1 1 0 1 0
-7 1 0 0 0 0 1 1 1 -59 1 0 1 1 1 0 1 1
-8 1 0 0 0 1 0 0 0 -60 1 0 1 1 1 1 0 0
-9 1 0 0 0 1 0 0 1 -61 1 0 1 1 1 1 0 1
-10 1 0 0 0 1 0 1 0 -62 1 0 1 1 1 1 1 0
-11 1 0 0 0 1 0 1 1 -63 1 0 1 1 1 1 1 1
-12 1 0 0 0 1 1 0 0 -64 1 1 0 0 0 0 0 0
-13 1 0 0 0 1 1 0 1 -65 1 1 0 0 0 0 0 1
-14 1 0 0 0 1 1 1 0 -66 1 1 0 0 0 0 1 0
-15 1 0 0 0 1 1 1 1 -67 1 1 0 0 0 0 1 1
-16 1 0 0 1 0 0 0 0 -68 1 1 0 0 0 1 0 0
-17 1 0 0 1 0 0 0 1 -69 1 1 0 0 0 1 0 1
-18 1 0 0 1 0 0 1 0 -70 1 1 0 0 0 1 1 0
-19 1 0 0 1 0 0 1 1 -71 1 1 0 0 0 1 1 1
-20 1 0 0 1 0 1 0 0 -72 1 1 0 0 1 0 0 0
-21 1 0 0 1 0 1 0 1 -73 1 1 0 0 1 0 0 1
-22 1 0 0 1 0 1 1 0 -74 1 1 0 0 1 0 1 0
-23 1 0 0 1 0 1 1 1 -75 1 1 0 0 1 0 1 1
-24 1 0 0 1 1 0 0 0 -76 1 1 0 0 1 1 0 0
-25 1 0 0 1 1 0 0 1 -77 1 1 0 0 1 1 0 1
-26 1 0 0 1 1 0 1 0 -78 1 1 0 0 1 1 1 0
-27 1 0 0 1 1 0 1 1 -79 1 1 0 0 1 1 1 1
-28 1 0 0 1 1 1 0 0 -∞ 1111 1 1 1 1
：Initial condition
Technical Note
16/28
BD3460FS,BD3461FS,BD3464FV,BD3465FV
www.rohm.com 2011.04 - Rev.B
© 2010 ROHM Co., Ltd. All rights reserved.
VCC OUTS2
INR1
10μ 0.1μ
4.7μ
OUTS1OUTR2OUTR1OUTF2OUTF1SDA SCL CS
4.7μ 4.7μ 4.7μ 4.7μ
1μ 1μ 1μ 4.7μ 4.7μ 10μ 10μ
GNDFIL
2.2K 4.7μ
1μ 1μ 1μ 10μ 10μ
INF1 INF2 INR2 INS1 INS2 DIFFOUT2PIN2 NIN2 DIFFOUT1 NIN1 PIN1
10μ
I2C BUS LOGIC
100k
22 21 20 19 18 17 16 15 14 13
345678910 11 12
100k 100k
24 23
1 2
VCC/2
100k 100k 100k
VCC
GND
■6ch Volume
+23dB～-79ｄB/1dB step,-∞
★：Advanced switch circuit
100k 100k
BUFFERED
GND ISO AMP
BUFFERED
GND ISO AMP
100k 100k
●Application C ircuit Diagram
Fig.23 BD3460FS
Unit
R : [Ω]
C : [F]
Notes on wiring
① Please connect the decoupling capacitor of a power supply in the shortest distance as much as possible to GND.
② Lines of GND shall be one-point connected.
③ Wiring pattern of Digital shall be away from that of analog unit and cross-talk shall not be acceptable.
④ Lines of SCL and SDA of I2C BUS shall not be parallel if possible.
The lines shall be shi elded, if they are adjacent to each other.
⑤ Lines of analog input shall not be parallel i f possible. The lines shall be shielded, if they are adjacent to each other.
Technical Note
17/28
BD3460FS,BD3461FS,BD3464FV,BD3465FV
www.rohm.com 2011.04 - Rev.B
© 2010 ROHM Co., Ltd. All rights reserved.
VCC OUTS2
INR1
10μ 0.1μ
4.7μ
OUTS1OUTR2OUTR1OUTF2OUTF1SDA SCL CS
4.7μ 4.7μ 4.7μ 4.7μ
1μ 1μ 1μ 10μ 4.7μ 10μ 10μ
GNDFIL
2.2K 4.7μ
1μ 1μ 1μ 10μ 10μ
INF1 INF2 INR2 INS1 INS2 EXT3
EXT1 EXT2 DIFFOUT NIN PIN
10μ
I2C BUS LOGIC
100k
22 21 20 19 18 17 16 15 14 13
3 4 5 6 7 8 9 10 11 12
100k 100k 100k 100k
24 23
1 2
VCC/2
100k 100k 100k
BUFFERED
GND ISO AMP
VCC
GND
100k 100k 100k
Independent
control
■6ch Volume
+23dB～-79ｄB/1dB step,-∞
★：Advanced switch circuit
■Mixing ATT
0dB～-32dB/8dB step,
-32dB～-64dB/16dB step,-∞
Fig.24 BD3461FS
Unit
R : [Ω]
C : [F]
Notes on wiring
① Please connect the decoupling capacitor of a power supply in the shortest distance as much as possible to GND.
② Lines of GND shall be one-point connected.
③ Wiring pattern of Digital shall be away from that of analog unit and cross-talk shall not be acceptable.
④ Lines of SCL and SDA of I2C BUS shall not be parallel if possible.
The lines shall be shi elded, if they are adjacent to each other.
⑤ Lines of analog input shall not be parallel i f possible. The lines shall be shielded, if they are adjacent to each other.
Technical Note
18/28
BD3460FS,BD3461FS,BD3464FV,BD3465FV
www.rohm.com 2011.04 - Rev.B
© 2010 ROHM Co., Ltd. All rights reserved.
VCC
INR1
10μ 0.1μ
4.7μ
OUTR2OUTR1OUTF2OUTF1SDA SCL CS
4.7μ 4.7μ 4.7μ
1μ
GNDFIL
2.2K
1μ 1μ 1μ
INF1 INF2 INR2
10μ
I2C BUS LOGIC
100k
18 17 16 15 14 13 12 11
3 4 5 6 7 8 9 10
100k 100k
Volume★
Volume★
20 19
1 2
Volume★
100k
VCC
VCC/2 GND
Volume★
■4ch Volume
+23dB～-79ｄB/1dB step,-∞
★：Advanced switch circuit
Fig.25 BD3464FV
Notes on wiring
① Please connect the decoupling capacitor of a power supply in the shortest distance as much as possible to GND.
② Lines of GND shall be one-point connected.
③ Wiring pattern of Digital shall be away from that of analog unit and cross-talk shall not be acceptable.
④ Lines of SCL and SDA of I2C BUS shall not be parallel if possible.
The lines shall be shi elded, if they are adjacent to each other.
⑤ Lines of analog input shall not be parallel i f possible. The lines shall be shielded, if they are adjacent to each other.
Unit
R : [Ω]
C : [F]
Technical Note
19/28
BD3460FS,BD3461FS,BD3464FV,BD3465FV
www.rohm.com 2011.04 - Rev.B
© 2010 ROHM Co., Ltd. All rights reserved.
VCC
INR1
10μ 0.1μ
4.7μ
OUTR2OUTR1OUTF2OUTF1SDA SCL CS
4.7μ 4.7μ 4.7μ
1μ
GNDFIL
2.2K
1μ 1μ 1μ
INF1 INF2 INR2 EXT3
EXT1 EXT2
1μ
1μ 1μ
10μ
I2C BUS LOGIC
100k
18 17 16 15 14 13 12 11
3 4 5 6 7 8 9 10
100k 100k
■4ch Volume
+23dB～-79ｄB/1dB step,-∞
★：Advanced switch circuit
■Mixing ATT
+0dB～-32dB/8dB step,
-32dB～-64dB/16dB step,-∞
20 19
1 2
100k
VCC
100k 100k 100k
VCC/2 GND
Independent
control
Fig.26 BD3465FV
Notes on wiring
① Please connect the decoupling capacitor of a power supply in the shortest distance as much as possible to GND.
② Lines of GND shall be one-point connected.
③ Wiring pattern of Digital shall be away from that of analog unit and cross-talk shall not be acceptable.
④ Lines of SCL and SDA of I2C BUS shall not be parallel if possible.
The lines shall be shi elded, if they are adjacent to each other.
⑤ Lines of analog input shall not be parallel i f possible. The lines shall be shielded, if they are adjacent to each other.
Unit
R : [Ω]
C : [F]
Technical Note
20/28
BD3460FS,BD3461FS,BD3464FV,BD3465FV
www.rohm.com 2011.04 - Rev.B
© 2010 ROHM Co., Ltd. All rights reserved.
●Interfaces
Terminal
Name Terminal
Voltage Equivalent Circuit Terminal Description
INF1
INF2
INR1
INR2
INS1
INS2
PIN2
NIN2
NIN1
PIN1
NIN
PIN
EXT1
EXT2
EXT3
4.25
A terminal for signal input.
The input impedance is 100kΩ(typ).
INS1 and INS2 are only BD3460FS and
BD3461FS’s terminals, PIN2,NIN2,NIN1 and
PIN1 are only BD3460FS’s one, NIN and PIN
are only BD3461FS’s one, EXT1,EXT2 and
EXT3 are only BD3461FS and BD3465FV’s
one.
DIFOUT2
DIFOUT1
DIFOUT
OUTS2
OUTS1
OUTR2
OUTR1
OUTF2
OUTF1
4.25
A terminal for fader output.
DIFOUT2 and DIFOUT1 are only BD3460FS’s
terminals, DIFOUT is only BD3461FS’s one,
OUTS2, and OUTS1 are only BD3460FS and
BD3461FS’s one.
CS -
A terminal for slave addresses selection.
“CS” is “High”→slave address “84 H”
“CS” is “Low”→ slave address “80 H”
The figure in the pin explanation and input/output equivalent circuit is reference value, it doesn’t guarantee the value.
GND
Vcc
100KΩ
VCC
GND
VCC
GND
Technical Note
21/28
BD3460FS,BD3461FS,BD3464FV,BD3465FV
www.rohm.com 2011.04 - Rev.B
© 2010 ROHM Co., Ltd. All rights reserved.
Terminal
Name Terminal
Voltage Equivalent Circuit Terminal Description
VCC 8.5 Power supply terminal.
SCL －
A terminal for clock input of I2C BUS
communication.
SDA －
A terminal for data input of I2C BUS
communication.
GND 0 Ground terminal.
FIL 4.25
Voltage for reference bias of a nalog signal
system. The simple precharge circuit and
simple discharge circuit for an externa l
capacitor are built in.
The figure in the pin explanation and input/output equivalent circuit is reference value, it doesn’t guarantee the value.
Vcc
GND
1.65V
Vcc
GND
1.65V
VCC
GND
50
k
50
k
Technical Note
22/28
BD3460FS,BD3461FS,BD3464FV,BD3465FV
www.rohm.com 2011.04 - Rev.B
© 2010 ROHM Co., Ltd. All rights reserved.
●Notes for use
1. Absolute maximum rating voltage
When it impressed the voltage on VCC more than the absolute maximum rating voltage, circuit currents increase
rapidly, and there is absolutel y a case to reach characteristic deterioration and destruction of a device. In particular in
a serge examination of a set, when it is expected the impressing serge at VCC terminal, pleas e do not impress the
large and over the absolute maximum rating voltage (including a operating voltage + serg e ingredient (around 14V)).
2. About a signal input part
1)About constant set up of input coupling capacitor
In the signal input terminal, the constant setting of input coupling capacitor C(F) be sufficient input impedance
RIN(Ω) inside IC and please decide. The first HPF characteristic of RC is composed.
3. About output load characteristics)
The usages of load for output are below (reference). Please use the load more than 10[kΩ](TYP).
Output pin on target
Pin Name Pin name Pin name Pin name Pin name
OUTF1 OUTR1 OUTS1 DIFOUT1 DIFOUT
OUTF2 OUTR2 OUTS2 DIFOUT2
Output load characteristic at Vcc=8.5V. (Reference)
2
IN)
2
IN
(2πfCR1
)(2πfCR
A(f)
0
A(f)
G〔dB〕
f〔Hz〕
C〔F〕
RIN
〔Ω
INPUT
ＳＳ
VCC=8.5V
THD+n=1%
BW=400～30kHz
0
0.5
1
1.5
2
2.5
100 1k 10k 100k
(Load) ［Ω]
Output voltage [Vrms]
Technical Note
23/28
BD3460FS,BD3461FS,BD3464FV,BD3465FV
www.rohm.com 2011.04 - Rev.B
© 2010 ROHM Co., Ltd. All rights reserved.
4. Frequency characteristic at large output level
High slew-rate amplifiers are used for hi gh quality sound. This IC is corres ponded to “192kHz sampling on DVD-Audio
highest quality” . Output level is “2Vrms, 192kHz flat(typ)”.
(See the below graph (reference)).
5. Oscillation countermeasure for GND isolation amplifier outputs
Using higher capacitor than 10pF at GND isolation amplifier outputs (DIFOUT1, DIFOUT2, DIFOUT) may cause
oscillation. As oscillation cou ntermeasure, insert resistor in series to terminal directly as below.
Capacitance Resistor in series to terminal directly
C＜10pF Not necessary
10＜C＜100pF 220Ω
6. Oscillation countermeasur e for volume outputs at power supply ON/OFF
If using higher capacitor than 22pF at volume outputs, oscillation may occur a moment when turning ON/OFF power
supply (when VCC is about 3～4 V). As oscillation countermeasure, insert resistor in series to terminal directly as below,
and set volume output mute outside this device when turning ON/OFF power supply.
Capacitance Resistor in series to terminal directly
C＜22pF Not necessary
22＜C＜220pF 220Ω
-10
-9
-8
-7
-6
-5
-4
-3
-2
-1
0
1
2
10 100 1k 10k 100k 1000k
Frequency [Hz]
Gain[dB]
BD346X Gain vs Frequency (Volume=0dB setting)
Output
Coupling capacitor
Resistor for oscillation countermeasure
Capacitive load
(Included PCB capacitance etc)
Output
Coupling capacitor
Resistor for oscillation countermeasure
Capacitive load
(Included PCB capacitance etc)
Technical Note
24/28
BD3460FS,BD3461FS,BD3464FV,BD3465FV
www.rohm.com 2011.04 - Rev.B
© 2010 ROHM Co., Ltd. All rights reserved.
Fader F1
28h
Fader F2
29h
Group①
Fader R1
2Ah
Fader R2
2Bh
Group②
Fader S1
2Ch
Fader S2
2Dh
Group③
Select address
7. I2C BUS Transferring Data
【1】The kind of the Transferring Data
1-1. he data setup except Advanced switch (the data without hatching of a data format) does not have the regulation on
transferring data.
1-2. The data setup of Advanced switch (the data with hatching of a data format) does not have the regulation on
transferring data too. But Advanced switch order follows the following 【2】.
【2】Transferring data of the Advanced switch
2-1. The timing chart from the transferring data timing to the Advanced switch start timing is as follows.
■Transferring data example 1
It is the same even if it transfers data in auto increment mode.
There are no timing regulations of I2C BUS transferring data. But the timing of a change start after the end of the
present change. In addition, the timing of Ad vanced switch is not depended of a transferri ng data turn, but conforms in
turn of the following figure.
The turn of Advanced switch start
The block in the same group can start the Advanced s witch in the same time.
Technical Note
25/28
BD3460FS,BD3461FS,BD3464FV,BD3465FV
www.rohm.com 2011.04 - Rev.B
© 2010 ROHM Co., Ltd. All rights reserved.
■Transferring data example 2
The transferring data turn differs from the actual change turn as below.
Please transfer data after the present Advanced switch, if it wants to make a transferring data turn and Advanced
switch turn the same.
■Transferring data example 3
Priority is given to the data of the same select address when it is transferred to the timing which Advanced s witch has
not ended. In addition, when t wo or more data are transferred to the same select addr ess, the end transferred data is
effective.
■Transferring data example 4
Refresh data is the same as the present setup data, therefore Advanced switch does not change.
The gain change data of other chann els are transferred after refresh data as below.
80 28 80 80 2A 80 80 2C 80
Fader S1 切換時間 Fader F1 切換時間 Fader R1 切換時間
I2C BUS
アドバンスト・スイッチ時間
(Fader S1 0dB) (Fader R1 0dB) (Fader F1 0dB)
slave select data
80 28 80 80 28 7F 80 28 81
Fader F1
Changing time
I2C BUS
Advanced switch timing
(Fader F1 0dB)
(Fader F1 +1dB)
(Fader F1 -1dB)
Fader F1
Changing time
The data which have become invalid as a result Fader F1 Only the last of the data transmitted during the Fader F1 change
is effective.
80 28 80 80 2A 80
Fader
R
1
c
h
a
n
g
in
g
t
im
e
I2C BUS
Advanced switch timing
Fader F1 0dB) Fader R1 dB)
Refresh data
80 28 80
(Fader F1 0dB)
Fader F1
c h anging time
Technical Note
26/28
BD3460FS,BD3461FS,BD3464FV,BD3465FV
www.rohm.com 2011.04 - Rev.B
© 2010 ROHM Co., Ltd. All rights reserved.
【3】Attention of transferring data
BD3460FS, BD3461FS, BD3464FV, BD3465FV can not set the transferring data from a microcomputer correctly on
very rare occasions. The following phenomenon may occur.
1. Volume (Fader) gain does not change.
2. Volume (Fader) gain changes to MUTE.
Therefore, the transferring data from a microcomputer should send to conform to the following conditions.
① When the Volume (Fader) ch ange data send, please send the same data twice as below.
If Refresh data can’t be sent like ①timing, the output wave may be mute momentarily.
② If Volume (Fader) change data can send over 94.08msec interval transferring data, there is no need to send
Refresh data.
Technical Note
27/28
BD3460FS,BD3461FS,BD3464FV,BD3465FV
www.rohm.com 2011.04 - Rev.B
© 2010 ROHM Co., Ltd. All rights reserved.
●Thermal Derating Curve
About the thermal design by the IC
Characteristics of an IC have a great deal to do with the temperature at which it is used, and exceeding absolute
maximum ratings may degrade and destroy elements. Careful consideration must be given to the heat of the IC from
the two standpoints of immediate dama ge and long-term reliabilit y of operation.
Fig.27 Tempe rature Derating Curve (SSOP-A24)
Fig.28 Tempe rature Derating Curve (SSOP-B20)
Power dissipation values vary according to the board on which the IC is mounted.
Reference data SSOP-A24
1.5
1.0
0.5
0.0 0 25 50 75 100 125
150
Ambient Temperature Ta Ta（℃）
Power Dissipation Pd Pd（W）
1.0W
θja = 125℃/W
85
SSOP-B20
1.5
1.0
0.5
0.0 0 25 50 75 100 125
150
0.81W
Measurement condition: ROHM Standard board
board Size：70×70×1.6(㎣)
material：A FR4 grass epoxy board
(3% or less of copper foil area)
θja = 153.8℃/W
85
Reference data
Power Dissipation Pd Pd（W）
Ambient Temperature Ta Ta（℃）
Measurement condition: ROHM Standard board
board Size：70×70×1.6(㎣)
material：A FR4 grass epoxy board
(3% or less of copper foil area)
Note) Values are actual meas urements and are not guaranteed.
Technical Note
28/28
BD3460FS,BD3461FS,BD3464FV,BD3465FV
www.rohm.com 2011.04 - Rev.B
© 2010 ROHM Co., Ltd. All rights reserved.
●Ordering part number
B D 3 4 6 0 F S - E 2
Part No. Part No.
3460, 3461
3464, 3465
Package
FS:SSOP-A24
FV:SSOP-B20
Packaging and forming specific ation
E2: Embossed tape and reel
∗
Order quantity needs to be multiple of the minimum quantity.
<Tape and Reel information>
Embossed carrier tapeTape
Quantity
Direction
of feed
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
2000pcs
E2
()
Direction of feed
Reel 1pin
(Unit : mm)
SSOP-A24
24
0.1±0.1
12
0.8
−4°
+6°
0.17−0.05
+0.1
13
1.8±0.1
4°
0.38±0.1
1
10±0.2
0.5±0.2
1.2±0.15
7.8±0.3
5.4±0.2
(MAX 10.35 include BURR)
0.1
(Unit : mm)
SSOP-B20
0.1
11
10
20
1
0.1± 0.1
6.4 ± 0.3
4.4 ± 0.2
6.5 ± 0.2
0.15 ± 0.1
0.22 ± 0.1
0.65
1.15 ± 0.1
0.3Min.
∗
Order quantity needs to be multiple of the minimum quantity.
<Tape and Reel information>
Embossed carrier tapeTape
Quantity
Direction
of feed
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
2500pcs
E2
()
Direction of feed
Reel 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 an y damages, expenses or losses incurred b y you or third parties resulting from inaccuracy or errors of or
concerning such information.
