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Structure
Product name
Model Name
Silicone monolithic integrated circuit
Audio sound processor for TV
BD3869AF/BD3869AS
●Features
1. Built-in loudness linked to volume attenuation amount
2. Maximum of 3 channels can be used simultaneously with I
2
C BUS control at the control voltage of 3.3V-5.5V
3. Use the Bi-CMOS process
●Absolute
Maximum Ratings
Parameter
Applied voltage
Input voltage
Power Dissipation
BD3869AF
BD3869AS
Symbol
VCC
Vin
Pd
Topr
Tastg
Limits
10.0
VCC+0.3½GND-0.3
680 *1
750 *2
-40½+85 *3
-55½+150
Unit
V
V
mW
C
C
Operating temperature
Storage temperature
*1 At Ta＝25°C or higher, this value is decreased to 5.5mW/°C. Thermal resistance
ja
= 181.8 (°C/W).
*2 At Ta＝25°C or higher, this value is decreased to 6.0mW/°C. Thermal resistance
ja
= 166.7 (°C/W).
When Rohm standard board is mounted.
Rohm standard board:
size: 70×70×1.6 (mm
3
)
material: FR4 glass-epoxy substrate (copper foil area: not more than 3%).
*3 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
Power supply voltage *4
Symbol
VCC
Min.
5.3
Typ.
9.0
Max.
9.5
Unit
V
Basic operation shall be available at Ta=25°C.
*4 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.
REV. C
2/4
●Function
Function
Front volume
Loudness
Bass
Treble
Rear Volume
Specifications
From 0dB to -89dB(1dB step)
Volume attenuation linked type
14dB(2dB
Step),
14dB(2dB
Step),
From 0dB to-20dB(1dB step), -25dB,-30dB,-35dB-45dB,-60dB, MUTE
●Electrical
characteristics
Unless specified: Ta=25℃, VCC=9V, f=1kHz, Vin=1Vrms, Rg=600Ω, RL=10kΩ, A single input, Input gain 0dB,
Volume = 0dB, middle 0dB, bass = 0dB, treble = 0dB, fader 0dB
Limits
Parameter
Circuit current upon no signal
Maximum input voltage
Maximum output voltage
Voltage gain
Channel balance
Total harmonic distortion
Output noise voltage
Symbol
Min.
IQ
VIM
VOM
GV
CB
THD
VNO
-
2.2
2.1
-2
-1.5
-
-
Typ.
3
2.5
2.3
0
0
0.01
2.3
Max.
7
-
-
2
1.5
0.2
15
mA
Vrms
Vrms
dB
dB
%
Vrms
Vin=0Vrms
Front Volume = -6dB
THD(Vout)=1%
THD=1%
Gv=20log(Vout/Vin)
CB = Gv1-Gv2
Vout=1Vrms
BPF=400-30kHz
BPF = IHF-A
Rg=0Ω
Front Volume = -89dB
Rear Volume = -∞,
BPF = IHF-A
Rg=0Ω
CT = 20log(Vin/Vout),
BPF=IHF-A
Front Volume = -89dB
Rear Volume = -∞,
ATT
MAX
=20log(Vout/Vin)
BPF=IHF-A
Unit
Conditions
Residual noise voltage
VMNO
-
1.4
10
Vrms
Cross talk 1ch→2ch
CT
70
95
-
dB
Maximum attenuation
ATT
MAX
-
-114
-90
dB
REV. C
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●Dimensional
outline drawing
BD3869AS
BD3869AF
Lot No.
Lot No.
LOT No
.
SOP-18 (Unit : mm)
SDIP-18 (Unit : mm)
●Block
diagram
18
FB22
17
FB21
16
FB11
15
FB12
14
OUT2
13
OUT1
12
VCC
11
SCL
10
SDA
I
2
C BUS Logic
MUTE
R E A R
V O L U M E
BASS
BASS
MUTE
R E A R
V O L U M E
VCC/2
25K
25K
F R O N T
V O L U M E
T R E B B L E
T R E B B L E
F R O N T
V O L U M E
FT1
1
2
FT2
3
IN1
4
LOUD1 IN2
5
6
LOUD2 CHIP
7
FILTER GND
8
9
REV. C
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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. C
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, commu-
nication 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, fuel-
controller 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.
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