Rohm BD3814FV 6ch electronic volume Datasheet

Sound Processors for Home Theater Systems
6ch
Electronic Volume
BD3814FV
No.10081EAT05
●Description
BD3814FV is a 1-chip sound processor incorporating such functions as volume, bass, and treble, necessary for AV receivers,
home theater systems, and mini-audio systems. This IC adopts the Bi-CMOS process, and realizes low distortion, low noise,
and a wide dynamic range.
●Features
1) Dynamic range: 132dB (tone bypath, VOL = MUTE, IHF-A)
2) Master volume 6ch independent (0 to -95dB, MUTE 1dB/step)
3) Low current consumption design achieved by adopting the BiCMOS process
4) Maximum output voltage: 4.3Vrms (Vcc=7V, VEE=-7V, RL=10kΩ)
5) Built-in 2 OP amplifiers
6) 2-line serial control (for both 3.3V and 5V)
●Applications
AV receivers, home theater systems, mini-audio systems, TVs etc.
●Absolute maximum ratings (Ta=25℃)
Parameter
Power supply voltage
Symbol
Ratings
Unit
7.5*1
VCC
V
VEE
-7.5
Input signal voltage
VIN
VCC+0.3 to VEE-0.3
V
Power dissipation
Pd
900*2
mW
Operating temperature range
Topr
-20 to +75
℃
Storage temperature range
Tastg
-55 to +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 9 mW/C over 25C, when installed on the standard board (size: 70x70x1.6mm).
●Operating conditions
Must function normally at Ta=25℃.
Parameter
Operating source voltage
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
Symbol
Ratings
Min.
Typ.
Max.
VCC
5
7
7.3
VEE
-7.3
-7
-5
1/10
Unit
V
2010.06 - Rev.A
Technical Note
BD3814FV
●Electrical characteristics
Ta=25℃, VCC=7V, VEE=-7V, f=1kHz, Vin=1Vrms, RL=10kΩ, Rg=600Ω, Master volume=0dB,
Bass and Treble=0dB unless otherwise noted.
Limits
Parameter
Symbol
Unit.
Conditions
Min.
Typ.
Max.
Total output
Circuit current
VCC
VEE
IQ
―
7
17
-17
-7
―
mA
No signal
L input current(CL,DA)
IIL
―
0.5
5
µA
CL=DA=0V
H input current(CL,DA)
IIH
―
0
5
µA
CL=DA=5V
Output voltage gain 1
Gv1
-2
0
2
dB
Measure: Pin27,28,29,30, 31,32
Output voltage gain 2
Gv2
-2
0
2
dB
Measure: Pin3, 7
Total harmonic distortion
ratio 1
THD1
―
0.001
0.03
%
Measure: Pin27,28,29,30,31,32
BW=400 ~ 30kHz
Total harmonic distortion
ratio 2
THD2
―
0.001
0.03
%
Measure: Pin3, 7
BW=400 ~ 30KHz
Maximum output voltage 1
Vomax1
3.6
4.3
―
Vrms
Measure: Pin27,28,29,30,31,32
THD=1%
Maximum output voltage 2
Vomax2
3.6
4.3
―
Vrms
Measure: Pin 3,7
THD=1%
―
1.0
6.0
µVrms
―
1.7
10
µVrms
Vno2
―
1.0
6.0
µVrms
Cross talk between channels
Rch→Lch
CTCRL
―
-95
-80
dB
Measure: Pin27(OUTFL)
Rg=0Ω, BW=IHF-A
Reference: Pin28(OUTFR)=1Vrms
Cross talk between channels
Lch→Rch
CTCLR
―
-95
-80
dB
Measure: Pin28(OUTFR)
Rg=0Ω, BW=IHF-A
Reference: Pin27(OUTFL)=1Vrms
Cross talk between channels
SRch→SLch
CTCSRL
―
-95
-80
dB
Measure: Pin 30(OUTSL)
Rg=0Ω, BW=IHF-A
Reference: Pin31(OUTSR)=1Vrms
Cross talk between channels
SLch→SRch
CTCSLR
―
-95
-80
dB
Measure: Pin 31(OUTSR)
Rg=0Ω, BW=IHF-A
Reference: Pin30(OUTSL)=1Vrms
Cross talk between channels
Cch→SWch
CTCCSW
―
-95
-80
dB
Measure: Pin 32(OUTSW)
Rg=0Ω, BW=IHF-A
Reference: Pin29(OUTC) =1Vrms
Output noise voltage 1
Output noise voltage 2
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
Vno1
2/10
Measure: Pin 27, 28
Tone: By-pass, Rg=0Ω, BW=IHF-A
Measure: Pin 27, 28
Tone: ON, Rg=0Ω, BW=IHF-A
Measure: Pin3, 7, 29, 30, 31, 32
Rg=0Ω, BW=IHF-A
2010.06 - Rev.A
Technical Note
BD3814FV
Symbol
Limits
Min.
Typ.
Max.
Unit.
Conditions
Input impedance V
RinV
14
20
26
kΩ
Measure: Pin27,28,29,30,31,32
Volume control range
GVR
-98
-95
-92
dB
Measure: Pin27,28,29,30,31,32
Vin=3Vrms
Volume set error 1
VE1
-1.5
0
1.5
dB
Measure: Pin27,28,29,30, 31,32
0 to –53dB, Vin=3Vrms
Volume set error 2
VE2
-2.5
0
2.5
dB
Measure: Pin27,28,29,30,31,32
-54 to –95dB,
Vin =3Vrms
Maximum attenuation
amount
Vmin
―
-115
-105
dB
Measure: Pin27,28,29,30,31,32
Vin =3Vrms, BW=IHF-A
Residual noise voltage 1
Vnom1
―
1.0
6.0
µVrms
Measure: Pin27, 28
Tone: By-Pass, Rg=0Ω, BW=IHF-A
Residual noise voltage 2
Vnom2
―
1.0
6.0
µVrms
Measure: Pin29, 30, 31, 32
Rg=0Ω, BW=IHF-A
Cross talk between channels
SWch→Cch
CTCSWC
―
-95
-80
dB
Measure: Pin 29(OUTC)
Rg=0Ω, BW=IHF-A
Reference: Pin32(OUTSW)=1Vrms
Treble maximum boost gain
GTB
12
14
16
dB
Measure: Pin 27, 28
f=15kHz, Vin =0.4Vrms
Treble maximum cut gain
GTC
-16
-14
-12
dB
Measure: Pin 27, 28
f=15kHz, Vin =0.4Vrms
Treble step resolution
TR
―
2
―
dB
Measure: Pin 27, 28
f=15kHz, Vin =0.4Vrms
Treble gain set error
TE
-2
0
2
dB
Measure: Pin 27, 28
f=15kHz, Vin =0.4Vrms
Bass maximum boost gain
GBB
12
14
16
dB
Measure: Pin 27, 28
f=100Hz, Vin=0.4Vrms
Bass maximum cut gain
GBC
-16
-14
-12
dB
Measure: Pin 27, 28
f=100Hz, Vin =0.4Vrms
Bass step resolution
BR
―
2
―
dB
Measure: Pin 27, 28
f=100Hz, Vin =0.4Vrms
Bass gain set error
BE
-2
0
2
dB
Measure: Pin 27, 28
f=100Hz, Vin =0.4Vrms
Bass
Treble
Volume output
Parameter
* Note: This IC is not designed to be radiation-resistant.
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
3/10
2010.06 - Rev.A
Technical Note
BD3814FV
●Timing chart
1. Signal timing conditions
・Data is read on the rising edge of the clock.
・Latch is read on the falling edge of the clock.
・Latch signal must terminate with the LOW state.
* To avoid malfunctions, clock and data signals must terminate with the LOW state.
90%
CL
(CLOCK)
90%
twc
10%
thd
DA
DATA
LATCH
90%
twd
ts
90%
DATA
90%
90%
10%
10%
twc
th
tsd
tsl
DATA
10%
thl
90%
90%
twh
10%
thd
10%
twl
LATCH
Terminate
with Low.
Fig.1
Parameter
Symbol
90%
Limits
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 conditions for control signal
Parameter
“H” input voltage
“L” input voltage
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
Condition
Limits
Unit
Min.
Typ.
Max.(≦Vcc)
2.2
-
5.5
V
0
-
1.0
V
Vcc=5 ~ 7.3V
VEE=-5 ~ -7.3V
4/10
2010.06 - Rev.A
Technical Note
BD3814FV
3. Basic configuration of control data format
Data input direction
MSB
D16
D15
D14
D13
D12
LSB
D11
D10
Data
D9
D8
D7
D6
D5
D4
D3
Data
Data
②
Data
③
Data
④
D16
D15
D14
D15
D13
D12
D11
D10
D9
Bass
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
Tone
*
*
*
*
*
0
0
0
D8
D7
D6
D5
D4
D3
D2
D1
D0
0
0
1
D2
D1
D0
0
1
0
D2
D1
D0
0
1
1
Master Volume FRch
D16
D15
D14
D13
D12
Master Volume FLch
D11
D10
D9
D8
Master Volume SRch
D16
D15
D14
D0
Select Address
Treble
D16
D1
Select Address
・Control data format
Data input direction
Data
①
D2
D13
D12
D7
D6
D5
D4
D3
Master Volume SLch
D11
D10
D9
D8
Master Volume Cch
D7
D6
D5
Master Volume SWch
D4
D3
By changing select address, 4 control data formats can be selected.
Do not set the select address data to any format other than that specified above.
At power-on sequence, initialize all data.
* is 0 or 1.
Example:
Data input direction
MSB
LSB
MSB
LSB
Data①
L
Data②
MSB
L
LSB
Data③
MSB
L
LSB
Data④
L
“L” shows latch.
After power-on, for the second and subsequent times, only the necessary data can be selected for setting
Example: When to change bus,
Input direction
MSB
LSB
Data①
L
“L” shows latch.
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
5/10
2010.06 - Rev.A
Technical Note
BD3814FV
●Application circuit
1
40
2
39
3
38
47K
Vcc
47µ
MASTER
10K
VOLUME
4
CL
37
0~-95dB
10K
1dB/step,MUTE
5
36
6
35
DA
47K
10K
MUTE
Ri=20K
7
34
8
33
Ri=20K
IN
SW
32
OUTSW
31
OUTSR
11
30
OUTSL
12
29
OUTC
28
OUTFR
14
27
OUTFL
15
26
9
10 µ
10
Ri=20K
IN
SR
10µ
IN
SL
13
IN
C
Ri=20K
10 µ
25
16
BASS
Ri=20K
IN
FR
17
24
18
23
10µ
4.7K
0.1µ
0.1µ
4.7K
0.1µ
Ri=20K
IN
FL
0.1µ
10 µ
19
TREBLE
10µ
4700P
21
20
VEE
22
4700P
47µ
UNIT
RESISTOR: Ω
CAPACITOR: F
Fig.2
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
6/10
2010.06 - Rev.A
Technical Note
BD3814FV
●Reference data
10
VCC
10
OUTPUT VOLTAGE (Vrms)
8
6
6
4
4
GAIN (dB)
2
0
VEE
-2
-4
2
0
-2
-4
-6
-6
-8
-8
-10
0
5
Fig.3 Circuit current - Power supply
1000
10000
GAIN (dB)
1
0.1
0.01
0.001
1
10
Fig.6 THD+N - Input voltage
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
1
10
Fig.5 Output voltage - Input voltage
+14dB
15
10
10
5
5
0
-14~+14dB
-5
-14dB
2dB/step
0
-5
-14~+14dB
-10
2dB/step
-15
-20
INPUT VOLTAGE (Vrms)
0.1
20
-15
0.0001
0.01
INPUT VOLTAGE (Vrms)
+14dB
-10
0.001
0.1
0.01
100000
20
15
THD+N (%)
100
Fig.4 Voltage gain - Frequency
10
0.01
0.1
FREQUENCY (Hz)
POWER SUPPLY (V)
0.001
1
0.001
10
10
GAIN (dB)
CIRCUIT CURRENT (mA)
8
10
100
1000
10000
100000
FREQUENCY (Hz)
Fig.7 Bass gain - Frequency
7/10
-14dB
-20
10
100
1000
10000 100000
FREQUENCY (Hz)
Fig.8 Treble gain - Frequency
2010.06 - Rev.A
Technical Note
BD3814FV
●Notes for use
1. Numbers and data in entries are representative design values and are not guaranteed values of the items.
2. Although ROHM is confident that the example application circuit reflects the best possible recommendations, be sure to
verify circuit characteristics for your particular application. Modification of constants for other externally connected circuits
may cause variations in both static and transient characteristics for external components as well as this Rohm IC. Allow for
sufficient margins when determining circuit constants.
3. Absolute maximum ratings
Use of the IC in excess of absolute maximum ratings, such as the applied voltage or operating temperature range (Topr),
may result in IC damage. Assumptions should not be made regarding the state of the IC (short mode or open mode) when
such damage is suffered. A physical safety measure, such as a fuse, should be implemented when using the IC at times
where the absolute maximum ratings may be exceeded.
4. VEE potential
Make the VEE pin voltage such that it is the lowest voltage even when operating below it. Actually confirm that the
voltage of each pin does not become a lower voltage than the VEE pin, including transient phenomena.
5. Thermal design
Perform thermal design, in which there are adequate margins, by taking into account the power dissipation (Pd) in actual
states of use.
6. Short circuit between terminals and erroneous mounting
Pay attention to the assembly direction of the ICs. Wrong mounting direction or shorts between terminals, GND, or other
components on the circuits, can damage the IC.
7. Operation in strong electromagnetic field
Using the ICs in a strong electromagnetic field can cause operation malfunction.
8. Serial control
For the CL and DA terminals, the patterned and other wirings should be routed as not to cause interference with the
analog-signal-related lines.
9. Power ON/OFF
(a) At power ON/OFF, a shock sound will be generated. Therefore, use MUTE on the set.
(b) When turning on power supplies, VEE and VCC should be powered on simultaneously, or VEE first followed
by VCC. If the VCC side is started up first, an excessive current may flow from VCC to VEE.
10. Tone bypath switching
For tone bypath switching, use MUTE on the set.
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
8/10
2010.06 - Rev.A
Technical Note
BD3814FV
●Thermal derating characteristic
1000
900mW
Power Dissipation Pd (mW)
800
600
400
200
0
0
25
50
75
100
125
Ta( ℃)
Fig.9
BD3814FV
ROHM standard board packaging time value
Board size: 70 x 70 x 1.6mm Raw material : FR4 glass epoxy board (copper area 3% or below)
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
9/10
2010.06 - Rev.A
Technical Note
BD3814FV
●Ordering part number
B
D
3
Part No.
8
1
4
F
Part No.
V
-
Package
FV: SSOP-B40
E
2
Packaging and forming specification
E2: Embossed tape and reel
SSOP-B40
<Tape and Reel information>
13.6 ± 0.2
(MAX 13.95 include BURR)
0.5 ± 0.2
1
2000pcs
Direction
of feed
E2
The direction is the 1pin of product is at the upper left when you hold
( reel on the left hand and you pull out the tape on the right hand
)
20
0.15 ± 0.1
0.1
1.8 ± 0.1
Embossed carrier tape
Quantity
21
5.4 ± 0.2
7.8 ± 0.3
40
Tape
0.1
S
0.65
0.22 ± 0.1
0.08
M
1pin
(Unit : mm)
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
Reel
10/10
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
system which requires an extremely high level of reliability the failure or malfunction of which
may result in a direct threat to human life or create a risk of human injury (such as a medical
instrument, transportation equipment, aerospace machinery, nuclear-reactor controller, fuelcontroller or other safety device). ROHM shall bear no responsibility in any way for use of any
of the Products for the above special purposes. If a Product is intended to be used for any
such special purpose, please contact a ROHM sales representative before purchasing.
If you intend to export or ship overseas any Product or technology specified herein that may
be controlled under the Foreign Exchange and the Foreign Trade Law, you will be required to
obtain a license or permit under the Law.
Thank you for your accessing to ROHM product informations.
More detail product informations and catalogs are available, please contact us.
ROHM Customer Support System
http://www.rohm.com/contact/
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
R1010A
Similar pages