Rohm BD3886FS Silicone monolithic integrated circuit Datasheet

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Structure
Silicone monolithic integrated circuit
Product name
Audio sound processor for TV
Model Type
BD3886FS
●Features
1. Built-in BBE processor clarifying voice sound
2. I2C BUS control with the control voltage of 3.3V-5.0V
3. Use the Bi-CMOS process
●Absolute Maximum Ratings (Ta=25°C)
Parameter
Symbol
Limits
Unit
Applied Voltage
VCC
10.0
V
Input Voltage
VIN
VCC+0.3~GND-0.3
V
Power Dissipation
Pd
1190*1
mW
Operating Temperature
Topr
-40~+85 *2
°C
Storage Temperature
Tastg
-55~+150
°C
*1 At Ta=25°C or higher, this value is decreaced to 9.5mW/°C.
When Rohm standard board is mounted. Thermal resistance ja = 105 (°C/W).
Rohm standard board:
size: 70×70×1.6 (mm3)
material: FR4 glass-epoxy substrate (copper foil area: not more than 3%).
*2 As long as voltage stays within operating voltage range, certain circuit operation is guaranteed in the
operating temperature range.
Allowable loss conditions are related to temperature, to which care must be taken.
In addition though the standard value of its electrical characteristics cannot be guaranteed under the
conditions other than those specified, original functions are maintained.
●Operating Voltage Range
Parameter
Symbol
Min.
Typ.
Max.
Unit
Power supply voltage *3
VCC
7.0
9.0
9.5
V
Basic operation shall be available at Ta=25°C.
*3 As long as temperature components must be set in accordance with the operating voltage and temperature
ranges before using this IC.
In addition, though the standard value of its electrical characteristics cannot be guaranteed under the
conditions other than those specified, original functions are maintained.
■ License Agreements for Patent and Trade Mark
BBE is the trade mark of BBE Sound Inc. The supply and sales of BD3886FS is limited to the parties to which the use of Patents and Trade Marks
is permitted. For the inquiry for the use right of trade mark and patent, contract BBE Inc. directly at the following address.
BBE Sound Area Manager (Japan), Mr. Tetsuro Sato
1-29-5-502 Higashi Ayase, Adachiku, Tokyo Telephone: 03-5697-4280, Fax: 03-5697-4281
REV. B
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●Function
Specifications
Function
AGC
Front volume
Surround
Bass
Treble
BBE
Rear volume
4 step suppression level variable
0dB to –87dB (1dB step), -∞dB
Stereo Surround
14dB (2dB step)
14dB (2dB step)
Process control : 1 ~ 10 dB
Contour control : 1 ~ 10 dB
0dB ~-20dB (2dB step), -25dB, -30dB,
(With the independent control)
-45dB,
-60dB,
-∞dB
●Electrical characteristics
Unless specified: Ta=25C, VCC=9V, f=1kHz, VIN=1Vrms, Rg=600Ω, RL=10kΩ, Front Volume 0dB,
Rear Volume =0dB, Bass=0dB, Treble=0dB, AGC=OFF, SURROUND=OFF;BBE=OFF.
Limits
Parameter
Symbol
Unit
Min.
Typ.
Max.
Conditions
Current upon no signal
IQ
-
8
20
mA
Maximum input voltage
VIM1
2.6
2.8
-
Vrms
Maximum output voltage
VOM1
2.2
2.5
-
Vrms
Voltage gain
GV1
-2
0
2
dB
GV=20log(Vout/Vin)
Channel balance
CB
-1.5
0
1.5
dB
CB = GV1-GV2
Total harmonic distortion
THD1
-
0.008
0.1
%
Vout=500mVrms
BPF=400-30KHz
Output noise voltage
VNO1
-
6
18
μVrms
Residual noise voltage
VMNO1
-
1.5
10
μVrms
Cross talk 1ch→2ch
CT12
70
80
-
dB
REV. B
Vin=0Vrms
Front Volume = -6dB
THD(Vout)=1%
BPF=400-30KHz
THD=1%
BPF=400-30KHz
BPF = IHF-A, Rg=0Ω
Front Volume = -87dB
Rear Volume = -∞dB
BPF = IHF-A, Rg=0Ω
CT = 20log(Vin/Vout)
BPF = IHF-A
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●Dimensional outline drawing
BD3886FS
LOT No.
SSOP-A32 (Unit : mm)
●Block diagram
32
31
HF2
30
LF2
29
BNF1
BBE
CH2
28
BOUT1
BASS
CH1
TREBLE
CH1
27
BNF2
BOUT2
26
25
OUT1
24
OUT2
23
LINE1
22
LINE2
GND
BASS
CH2
20
SDA
SCL
19
CAP2
18
C1
8k
IIC BUS
Logic
0 dB
Bass
-14 ~14dB
2dB step
TREBLE
CH2
21
17
C2
8k
67k
67k
0 dB
Rear Vol
0~-20dB 2dB step
-25, -30, -45, -60, - ∞dB
With soft switch
Treble
-14 ~14dB
2dB step
SURROUND
(Fixed Effect Amount)
AGC
VCC
4 suppression level variable
BBE
Contour: 1, 2, 3, 4, 5, 6,
FrontVol
8, 10dB
Process: 1, 2, 3, 4, 5, 6, 0~-87dB ,-∞dB
1dB step
8, 10dB
BBE
CH1
HF1
1
LF1
2
TNF1
3
TNF2
4
VIN2
5
SEL2
6
50k
VCC/2
89k
89k
67k
67k
50k
VIN1
7
SEL1
8
LS
9
REV. B
CAP1
10
FIL
11
VCC
12
11k
A1
13
11k
A2
14
8k
B1
15
8k
B2
16
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●Cautions on use
(1) Numbers and data in entries are representative design values and are not guaranteed values of the items.
(2) Although we are confident in recommending the sample application circuits, carefully check their
characteristics further when using them. When modifying externally attached component constants before
use, determine them so that they have sufficient margins by taking into account variations in externally
attached components and the Rohm LSI, not only for static characteristics but also including transient
characteristics.
(3) Absolute maximum ratings
If applied voltage, operating temperature range, or other absolute maximum ratings are exceeded, the LSI
may be damaged. Do not apply voltages or temperatures that exceed the absolute maximum ratings. If
you think of a case in which absolute maximum ratings are exceeded, enforce fuses or other physical safety
measures and investigate how not to apply the conditions under which absolute maximum ratings are
exceeded to the LSI.
(4) GND potential
Make the GND 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 GND pin, including transient
phenomena.
(5) Thermal design
Perform thermal design in which there are adequate margins by taking into account the allowable power
dissipation in actual states of use.
(6) Shorts between pins and misinstallation
When mounting the LSI on a board, pay adequate attention to orientation and placement discrepancies of the
LSI. If it is misinstalled and the power is turned on, the LSI may be damaged. It also may be damaged if it
is shorted by a foreign substance coming between pins of the LSI or between a pin and a power supply or a
pin and a GND.
(7) Operation in strong magnetic fields
Adequately evaluate use in a strong magnetic field, since there is a possibility of malfunction.
REV. B
Notice
Notes
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The content specified herein is for the purpose of introducing ROHM's products (hereinafter
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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
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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
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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).
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R1120A
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