Rohm BD3843FS-E2 6ch / 9ch stereo input selector Datasheet

Sound Processors for Home Theater Systems
6ch / 9ch Stereo
Input Selectors
BD3843FS,BD3841FS
No.10081EAT07
●Description
BD3843FS is a function switch IC with two 6ch (9ch for BD3841FS) inputs. It can independently control outputs of 2 systems:
2ch REC output (3ch for BD3841FS) and 1ch line output. Therefore, it is can be used for 2nd room entertainment and 2nd
source recording. BD3843FS has excellent cross-talk characteristics between channels and selectors. Low distortion, and
low noise are realized by a basic pattern layout.
●Features
1) 2 room entertainment / 2 source recording.
2) 6ch volume LSI BD3813KS/BD3815KS can be controlled simultaneously by the serial control bus.
3) 7ch volume LSI BD3816K1, BD3817KS with BD3843FS can be controlled simultaneously by the serial control bus.
4) 14ch input is available by combining 2chips (BD3843FS and BD3841FS).
5) Excellent cross-talk characteristics between channels by basic pattern layout.
6) Built-in buffer amplifier.
7) 2-line serial control bus (for both 3.3V and 5V).
8) Operated by single and dual power sources.
●Applications
AV receivers, home theater systems, mini-audio systems, and TVs.
●Product lineup
Parameter
BD3843FS
BD3841FS
Input selector
6
9
REC output
2
3
SSOP-A24
SSOP-A32
Package
●Absolute maximum ratings (Ta=25℃)
Parameter
Symbol
Ratings
VCC
7.5 *1
VEE
-7.5
Input signal voltage
VIN
VCC+0.3~VEE-0.3
Power Dissipation
Pd
Unit
Power Supply Voltage
V
800 (BD3843FS)
950 (BD3841FS)
V
*2
mW
Operating temperature
Topr
-20~+75
℃
Storage temperature
Tastg
-55~+125
℃
*1
*2
Even in the specified range of Power Supply Voltage, applying voltage only to the VCC side may cause
an excessive current may cause permanent damage to the IC.
When starting up power supplies, VEE and VCC should be powered on simultaneously, or VEE first followed by VCC.
Reduced by 8 mW/℃ over 25℃ (BD3843FS), when installed on the standard board (size: 70 x 70 x 1.6mm).
Reduced by 7.7 mW/℃ over 25℃ (BD3841FS), when installed on the standard board (size: 70 x 70 x 1.6mm).
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1/9
2010.06 - Rev.A
Technical Note
BD3843FS,BD3841FS
●Operating range
Must function normally at Ta = 25℃,
Part No.
BD3843FS
BD3841FS
Symbol
Parameter
Min.
Typ.
Max.
VCC
4
7
7.3
VEE
-7.3
-7
-4
VCC- VEE
8
14
14.6
VCC
5
7
7.3
VEE
-7.3
-7
-5
VCC- VEE
10
14
14.6
Action power source voltage
(both power sources)
Action power source voltage
(single power source)
Action power source voltage
(both power sources)
Action power source voltage
(single power source)
Ratings
Unit
V
V
Output
●Electrical characteristics
Ta=25℃, VCC=7V, VEE=7V, f=1kHz, Vin=1Vrms, RL=10kΩ, Rg=600Ω, unless otherwise noted.
Limits
Symbol
Unit
Conditions
Parameter
Min.
Typ.
Max.
VCC
―
3
10
Circuit current
IQ
mA
No signal
VEE
-10
-3
―
Output voltage gain 1ch
Gv1
-2
0
2
dB
Output voltage gain 2ch
Gv2
-2
0
2
dB
Total harmonic distortion ratio 1ch
THD1
―
0.004
0.05
%
BW=400~30kHz
Total harmonic distortion ratio 2ch
THD2
―
0.004
0.05
%
BW=400~30kHz
Maximum output voltage 1ch
Vomax1
3.4
4.2
―
Vrms
THD=1%
Maximum output voltage 2ch
Vomax2
3.4
4.2
―
Vrms
THD=1%
Output noise voltage 1ch
Vno1
―
1
5
µVrms
Rg=0Ω, BW=IHF-A
Output noise voltage 2ch
Vno2
―
1
5
µVrms
Rg=0Ω, BW=IHF-A
CTC12
―
-95
-80
dB
Rg=0Ω, BW=IHF-A
CTC21
―
-95
-80
dB
Rg=0Ω, BW=IHF-A
Cross-talk between selectors 1ch
CTS1
―
-95
-80
dB
Rg=0Ω, BW=IHF-A
Cross-talk between selectors 2ch
CTS2
―
-95
-80
dB
Rg=0Ω, BW=IHF-A
R voltage gain 1ch
GVR1
-2
0
2
dB
RL=47kΩ,
R voltage gain 2ch
GVR2
-2
0
2
dB
RL=47kΩ,
R Total harmonic distortion ratio 1ch
THDR1
―
0.01
0.09
%
R Total harmonic distortion ratio 2ch
THDR2
―
0.01
0.09
%
R output noise voltage 1ch
VnoR1
―
1
5
µVms
Rg=0Ω, BW=IHF-A
R output noise voltage 2ch
VnoR2
―
1
5
µVms
Rg=0Ω, BW=IHF-A
R output impedance 1ch
RoutR1
―
50
100
Ω
R output impedance 2ch
RoutR2
―
50
100
Ω
REC output
Cross-talk between channels
1ch→2ch
Cross-talk between channels
2ch→1ch
RL=47kΩ,
BW=400~30kHz
RL=47kΩ,
BW=400~30kHz
* Note: This IC is not designed to be radiation-resistant.
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2/9
2010.06 - Rev.A
Technical Note
BD3843FS,BD3841FS
●Timing chart
1. Signal timing standards
・Data is read at the rise of clock.
・Latch is read at the fall of clock.
・End latch signal at LOW.
* To avoid malfunctions, clock and data signals must terminate with the LOW state.
1byte=17bit
CL
(CLOCK)
tsu
90%
90%
10%
thd
DA
DATA
LATCH
90%
twd
ts
90%
DATA
th
90%
10%
10%
tsd
thd
tsl
10%
thl
90%
90%
twh
10%
90%
twc
twc
DATA
10%
90%
twl
LATCH
Finish at Low
Fig.1
Parameter
Symbol
Limit
Min.
Typ.
Max.
Unit
Minimum clock width
twc
2.0
-
-
µs
Minimum data width
twd
2.0
-
-
µs
Minimum latch width
twl
2.0
-
-
µs
LOW hold width
twh
2.0
-
-
µs
Data setup time (DATA→CLK)
tsd
1.0
-
-
µs
Data hold time (CLK→DATA)
thd
1.0
-
-
µs
Latch setup time (CLK→LATCH)
tsl
1.0
-
-
µs
Latch hold time (DATA→LATCH)
thl
1.0
-
-
µs
Latch low setup time
ts
1.0
-
-
µs
Latch low hold time
th
1.0
-
-
µs
2. Voltage standards of control signal
Parameter
“H” input voltage
“L” input voltage
Conditions
Vcc=5~7.3V
VEE=-5~-7.3V
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Limits
Unit
Min.
Typ.
Max.(≦Vcc)
2.2
-
5.5
V
0
-
1.0
V
3/9
2010.06 - Rev.A
Technical Note
BD3843FS,BD3841FS
3. Control data format list
(1) BD3843FS control data format
Data input direction
MSB
D16
LSB
D15
D14
D13
D12
D11
D10
D9
Data
INPUT FUNCTION 1
INPUT FUNCTION 2
D8
D7
RECA RECB
0:OFF 0:OFF
1:ON 1:ON
D6
D5
D4
D3
*
0
0
0
D2
D1
D0
Select Address
(2) BD3841FS control data format
Data input direction
MSB
D16
LSB
D15
D14
D13
D12
D11
D10
D9
Data
INPUT FUNCTION 1
INPUT FUNCTION 2
D8
D7
D6
RECA RECB RECC
0:OFF 0:OFF 0:OFF
1:ON 1:ON 1:ON
D5
D4
D3
D2
D1
D0
*
*
*
1
0
1
*:Don’t care.
(Ex.)
MSB
Data input direction
LSB
Data
L
"L" represents latch.
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4/9
2010.06 - Rev.A
Technical Note
BD3843FS,BD3841FS
OUT2
17
16
15
14
13
4
5
6
7
8
9
10
11
12
47K
47K
47μ
47K
OUT1
RECB2
RECB1
18
10K
10K
RECA2
19
47K
VCC
20
47μ
GND
21
VEE
DA
CL
DGND
1)BD3843FS)
(both power sources)
RECA1
●Block diagram, application circuit
24
23
22
47K
INF2
OUT2
47K
INF1
OUT1
47K
INE2
INE1
47K
47K
IND2
IND1
47K
47K
INC2
INC1
47K
INB2
INB1
47K
INA2
INA1
47K
3
47K
2
1
47K
F-SW2
F-SW1
LOGIC
Fig.2
32
31
30
INI2
47K
47K
INI1
RECC2
47K
47K
RECC1
RECB2
47K
47K
47K
RECB1
RECA2
RECA1
47K
47μ
V cc
V EE
47μ
10KΩ
10KΩ
CL
DA
2)BD3841FS
(both power sources)
29
28
27
26
25
24
23
22
21
20
19
18
17
4
5
6
7
8
9
10
11
12
13
14
15
16
47K
INH2
47K
INH1
47K
ING2
47K
ING1
47K
INF2
47K
INF1
47K
INE2
INE1
47K
47K
IND2
47K
IND1
47K
INC2
47K
INC1
INB2
INB1
47K
INA2
INA1
3
47K
2
47K
1
47K
F-SW2
F-SW1
LOGIC
Fig.3
UNIT
RESISTANCE:Ω
CAPACITOR:F
* F-SW1:INPUT FUNCTION1
F-SW2:INPUT FUNCTION2
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5/9
2010.06 - Rev.A
*
© 2010 ROHM Co., Ltd. All rights reserved.
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F-SW1:INPUT FUNCTION1
F-SW2:INPUT FUNCTION2
Fig.5
6/9
23
22
21
20
19
18
17
4
5
6
7
8
9
10
11
12
13
14
15
16
10μ 47K
6
7
8
9
10
11
12
INI2
47K
47K
47K
10μ 47K
10μ
10μ
10μ
5
10μ
10μ
47K 10μ
47K 10μ
47K 10μ
OUT2
OUT1
RECB2
RECB1
RECA2
RECA1
4
47K 10μ
13
47K 10μ
INF2
INF1
INE2
INE1
IND2
47K
14
INI1
OUT2
OUT1
RECC2
RECC1
RECB2
10μ
15
47K 10μ
10μ
10μ
47K 10μ
47K 10μ
47K 10μ
IND1
VCC
47μ
16
47K
24
RECB1
10μ 47K
1/2VCC
17
10μ
25
47K 10μ
INC2
GND
18
INH2
26
RECA2
47K
47K
DA
CL
19
47K
47K
47K
47K
47K
47K
47K
47K
27
47K 10μ
10μ
10μ
10K
10K
DGND
20
10μ
10μ
10μ
10μ
10μ
10μ
10μ
10μ
INC1
INB2
LOGIC
21
INH1
ING2
ING1
INF2
INF1
INE2
INE1
IN D2
28
RECA1
29
47K 10μ
4)BD3841FS
(single power source)
10μ 47K
V cc
47μ
47K
F-SW2
F-SW1
3)BD3843FS
(single power source)
IND1
47K
10μ
3
10μ
INB1
47K
47K
22
INC2
3
47K
LOGIC
1/2Vcc
30
10μ
10μ
2
10μ
INA2
INA1
23
INC1
DA
CL
1
10μ 47K
10KΩ
10KΩ
24
INB2
2
10μ 47K
F-SW2
31
INB1
47K
47K
1
10μ
10μ
F-SW1
32
INA2
INA1
BD3843FS,BD3841FS
Technical Note
Fig.4
UNIT
RESISTANCE:Ω
CAPACITOR:F
RESISTANCE:Ω
2010.06 - Rev.A
Technical Note
BD3843FS,BD3841FS
●Reference data
10
3
VCC
2
1
0
-1
VEE
-2
-3
-4
10
1
1
THD+N (%)
4
OUTPUT VOLTAGE (Vrms)
CIRCUIT CURRENT (mA)
5
0.1
0
2
4
6
8
0.001
0.0001
0.01
0.1
1
10
Fig.7 Output Voltage - Input
Voltage
OUTPUT VOLTAGE (Vrms)
NOISE (μVrms)
3.0
2.0
-1
1.0
100
1000
10000
FREQUENCY(Hz)
0
100000
4
6
8
10
1
GAIN (dB)
0.0001
0.01
0.1
1
10
INPUT VOLTAGE (Vrms)
Fig.12 REC Total Harmonic Distortion
- Input Voltage
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0.1
1
10
5.0
4.0
0
-1
0.001
0.01
Fig.11 REC Output Voltage Input Voltage
1
0.01
0.01
INPUT VOLTAGE (Vrms)
2
0.1
0.1
VCC,VEE (V)
10
0.001
2
Fig.10 Output Noise Voltage –
Supply Voltage
Fig.9 Voltage Gain Frequency
10
1
0.001
0.001
0.0
-2
NOISE(μVrms)
GAIN(dB)
0
1
10
4.0
1
0.1
Fig.8 Total Harmonic
Distortion - Input Voltage
5.0
2
0.01
INPUT VOLTAGE (Vrms)
INPUT VOLTAGE (Vrms)
Fig.6 Circuit Current - Supply
Voltage
THD+N (%)
0.001
10
VCC,VEE (V)
10
0.01
0.01
0.001
0.001
-5
0.1
3.0
2.0
1.0
0.0
-2
10
100
1000
10000
100000
FREQUENCY (Hz)
Fig.13 REC Voltage Gain Frequency
7/9
0
2
4
6
8
10
VCC,VEE(V)
Fig.14 REC Output Noise Supply Voltage
2010.06 - Rev.A
Technical Note
BD3843FS,BD3841FS
●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. Operating Voltage Range and Operating Temperature Range
Circuit function actions are guaranteed within the action voltage range and the action temperature range. However, the
specific values of the electrical characteristics are guaranteed under the specified conditions of the electrical
characteristics. Therefore, carry out set considerations in sufficient consideration of IC characteristic fluctuations..
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.
11. Function switching
For all functions, other than Master Volume, Treble, and Bass Gain Settings, use MUTE on the set.
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8/9
2010.06 - Rev.A
Technical Note
BD3843FS,BD3841FS
●Ordering part number
B
D
3
Part No.
8
4
3
F
Part No.
3843
3841
S
-
Package
FS: SSOP-A24
SSOP-A32
E
2
Packaging and forming specification
None: Tray
SSOP-A24
10 ± 0.2
(MAX 10.35 include BURR)
0.5±0.2
12
Tape
Embossed carrier tape
Quantity
2000pcs
0.1±0.1
0.8
0.1
Direction
of feed
E2
The direction is the 1pin of product is at the upper left when you hold
( reel on the left hand and you pull out the tape on the right hand
)
+0.1
0.17 −0.05
1.8±0.1
1
1.2±0.15
7.8±0.3
<Tape and Reel information>
13
5.4±0.2
24
+6°
4° −4°
1pin
0.38±0.1
Reel
(Unit : mm)
Direction of feed
∗ Order quantity needs to be multiple of the minimum quantity.
SSOP-A32
<Tape and Reel information>
13.6 ± 0.2
(MAX 13.95 include BURR)
17
Tape
Embossed carrier tape
Quantity
2000pcs
Direction
of feed
0.3MIN
5.4±0.2
7.8±0.3
32
1
E2
The direction is the 1pin of product is at the upper left when you hold
( reel on the left hand and you pull out the tape on the right hand
)
16
0.11
1.8±0.1
0.15 ± 0.1
0.36 ± 0.1
0.1
0.8
1pin
Reel
(Unit : mm)
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Direction of feed
∗ Order quantity needs to be multiple of the minimum quantity.
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
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may result in a direct threat to human life or create a risk of human injury (such as a medical
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More detail product informations and catalogs are available, please contact us.
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R1010A
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