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产品型号BD3841FS-E2的概述

芯片BD3841FS-E2的详尽解析 概述 BD3841FS-E2是一款高度集成的电源管理芯片,专为用于消费电子产品的高性能和低功耗场景而设计。其主要功能为DC-DC转换,能够将直流电源高效转换成所需的不同电压,广泛应用于智能手机、平板电脑、数字相机等便携式设备中。该芯片内部集成了多种功能模块,极大地简化了电源电路的设计与布局,为工程师提供了高效、稳定的解决方案。 详细参数 BD3841FS-E2的参数特性包括其工作电压范围、输出电流、功率转换效率等。具体参数如下: - 输入电压范围:4.5V 至 36V - 输出电压范围:可调,最低可至 0.8V - 输出电流:最大支持3A - 开关频率:500kHz(内部固定频率) - 效率:在5V输出时,最大效率可达90% - 过压保护:具备过压保护功能,防止输出电压超出设定范围 - 欠压保护:可实现欠压锁定,增加电路的安全性 - 温度范围:工...

产品型号BD3841FS-E2的Datasheet PDF文件预览

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  
Input selector  
BD3843FS  
BD3841FS  
6
2
9
REC output  
Package  
3
SSOP-A24  
SSOP-A32  
Absolute maximum ratings (Ta=25)  
Parameter  
Symbol  
Ratings  
7.5 *1  
-7.5  
Unit  
VCC  
VEE  
VIN  
Power Supply Voltage  
V
Input signal voltage  
Power Dissipation  
VCC+0.3VEE-0.3  
V
mW  
800 (BD3843FS)  
950 (BD3841FS)  
Pd  
*2  
Operating temperature  
Storage temperature  
Topr  
Tastg  
20+75  
55+125  
*1  
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).  
*2  
www.rohm.com  
2010.06 - Rev.A  
1/9  
© 2010 ROHM Co., Ltd. All rights reserved.  
Technical Note  
BD3843FS,BD3841FS  
Operating range  
Must function normally at Ta = 25,  
Ratings  
Symbol  
Unit  
V
Part No.  
Parameter  
Min.  
4
Typ.  
7
Max.  
7.3  
-4  
VCC  
VEE  
Action power source voltage  
(both power sources)  
-7.3  
-7  
BD3843FS  
Action power source voltage  
(single power source)  
VCC- VEE  
8
14  
14.6  
VCC  
VEE  
5
7
7.3  
-5  
Action power source voltage  
(both power sources)  
-7.3  
-7  
BD3841FS  
V
Action power source voltage  
(single power source)  
VCC- VEE  
10  
14  
14.6  
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  
VEE  
-10  
3
-3  
10  
Circuit current  
IQ  
mA  
dB  
dB  
%
No signal  
Output voltage gain 1ch  
Gv1  
-2  
-2  
0
0
2
2
Output voltage gain 2ch  
Gv2  
Total harmonic distortion ratio 1ch  
Total harmonic distortion ratio 2ch  
Maximum output voltage 1ch  
Maximum output voltage 2ch  
Output noise voltage 1ch  
THD1  
THD2  
Vomax1  
Vomax2  
Vno1  
3.4  
3.4  
-2  
0.004  
0.004  
4.2  
4.2  
1
0.05  
0.05  
BW=40030kHz  
BW=40030kHz  
%
Vrms THD=1%  
Vrms THD=1%  
5
µVrms Rg=0Ω, BW=IHF-A  
µVrms Rg=0Ω, BW=IHF-A  
Output noise voltage 2ch  
Vno2  
1
5
Cross-talk between channels  
CTC12  
CTC21  
CTS1  
-95  
-95  
-95  
-95  
0
-80  
-80  
-80  
-80  
2
dB  
dB  
dB  
dB  
dB  
dB  
%
Rg=0Ω, BW=IHF-A  
Rg=0Ω, BW=IHF-A  
Rg=0Ω, BW=IHF-A  
Rg=0Ω, BW=IHF-A  
RL=47k,  
1ch2ch  
Cross-talk between channels  
2ch1ch  
Cross-talk between selectors 1ch  
Cross-talk between selectors 2ch  
R voltage gain 1ch  
CTS2  
GVR1  
GVR2  
THDR1  
THDR2  
VnoR1  
VnoR2  
RoutR1  
RoutR2  
R voltage gain 2ch  
-2  
0
2
RL=47k,  
RL=47k,  
BW=40030kHz  
R Total harmonic distortion ratio 1ch  
R Total harmonic distortion ratio 2ch  
R output noise voltage 1ch  
R output noise voltage 2ch  
R output impedance 1ch  
0.01  
0.01  
1
0.09  
0.09  
5
RL=47k,  
BW=40030kHz  
%
µVms Rg=0Ω, BW=IHF-A  
1
5
µVms Rg=0Ω, BW=IHF-A  
50  
100  
100  
R output impedance 2ch  
50  
* Note: This IC is not designed to be radiation-resistant.  
www.rohm.com  
© 2010 ROHM Co., Ltd. All rights reserved.  
2010.06 - Rev.A  
2/9  
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  
90%  
90%  
10%  
90%  
10%  
90%  
10%  
CL  
tsu  
twc  
twc  
(CLOCK)  
thd  
ts  
th  
tsd  
thd  
tsl  
thl  
DA  
DATA  
LATCH  
90%  
90%  
90%  
90%  
90%  
twh  
twl  
twd  
DATA  
DATA  
10%  
LATCH  
10%  
10%  
Finish at Low  
Fig.1  
Limit  
Parameter  
Symbol  
Unit  
Min.  
Typ.  
Max.  
Minimum clock width  
Minimum data width  
Minimum latch width  
LOW hold width  
twc  
twd  
twl  
twh  
tsd  
thd  
tsl  
2.0  
2.0  
2.0  
2.0  
1.0  
1.0  
1.0  
1.0  
1.0  
1.0  
µs  
µs  
µs  
µs  
µs  
µs  
µs  
µs  
µs  
µs  
Data setup time (DATACLK)  
Data hold time (CLKDATA)  
Latch setup time (CLKLATCH)  
Latch hold time (DATALATCH)  
Latch low setup time  
thl  
ts  
Latch low hold time  
th  
2. Voltage standards of control signal  
Limits  
Typ.  
Parameter  
Conditions  
Unit  
Min.  
2.2  
Max.(Vcc)  
“H” input voltage  
“L” input voltage  
5.5  
V
V
Vcc=57.3V  
VEE=-5-7.3V  
0
1.0  
www.rohm.com  
© 2010 ROHM Co., Ltd. All rights reserved.  
2010.06 - Rev.A  
3/9  
Technical Note  
BD3843FS,BD3841FS  
3. Control data format list  
(1) BD3843FS control data format  
Data input direction  
MSB  
LSB  
D16 D15 D14 D13 D12 D11 D10 D9  
D8  
D7  
D6  
*
D5  
0
D4  
0
D3  
0
D2  
D1  
D0  
Data  
RECA RECB  
INPUT FUNCTION 2 0:OFF 0:OFF  
1:ON 1:ON  
INPUT FUNCTION 1  
Select Address  
(2) BD3841FS control data format  
Data input direction  
MSB  
LSB  
D16 D15 D14 D13 D12 D11 D10 D9  
D8  
D7  
D6  
D5  
*
D4  
*
D3  
*
D2  
1
D1  
0
D0  
1
Data  
RECA RECB RECC  
INPUT FUNCTION 1  
INPUT FUNCTION 2 0:OFF 0:OFF 0:OFF  
1:ON 1:ON 1:ON  
*:Don’t care.  
(Ex.)  
Data input direction  
LSB  
MSB  
Data  
L
"L" represents latch.  
www.rohm.com  
© 2010 ROHM Co., Ltd. All rights reserved.  
2010.06 - Rev.A  
4/9  
Technical Note  
BD3843FS,BD3841FS  
Block diagram, application circuit  
1)BD3843FS)  
(both power sources)  
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
14  
13  
LOGIC  
2
3
4
5
6
7
8
9
10  
11  
12  
1
Fig.2  
2)BD3841FS  
(both power sources)  
32  
31  
30  
29  
28  
27  
26  
25  
24  
23  
22  
21  
20  
19  
18  
17  
LOGIC  
1
2
3
4
5
6
7
8
9
10  
11  
12  
13  
14  
15  
16  
Fig.3  
UNIT  
RESISTANCE:Ω  
CAPACITORF  
*
F-SW1INPUT FUNCTION1  
F-SW2INPUT FUNCTION2  
www.rohm.com  
© 2010 ROHM Co., Ltd. All rights reserved.  
2010.06 - Rev.A  
5/9  
Technical Note  
BD3843FS,BD3841FS  
3)BD3843FS  
(single power source)  
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
14  
13  
LOGIC  
2
3
4
5
6
7
8
9
10  
11  
12  
1
Fig.4  
4)BD3841FS  
(single power source)  
32  
31  
30  
29  
28  
27  
26  
25  
24  
23  
22  
21  
20  
19  
18  
17  
LOGIC  
1
2
3
4
5
6
7
8
9
10  
11  
12  
13  
14  
15  
16  
UNIT  
Fig.5  
RESISTANCE  
CAPACITORF  
RESISTANCEΩ  
*
F-SW1INPUT FUNCTION1  
F-SW2INPUT FUNCTION2  
www.rohm.com  
2010.06 - Rev.A  
6/9  
© 2010 ROHM Co., Ltd. All rights reserved.  
Technical Note  
BD3843FS,BD3841FS  
Reference data  
10  
1
5
4
10  
1
3
VCC  
2
1
0.1  
0.1  
0
0.01  
0.001  
0.0001  
-1  
VEE  
-2  
0.01  
-3  
-4  
-5  
0.001  
0.001  
0.01  
0.1  
1
10  
0.001  
0.01  
0.1  
1
10  
0
2
4
6
8
10  
INPUT VOLTAGE (Vrms)  
INPUT VOLTAGE (Vrms)  
VCC,VEE (V)  
Fig.6 Circuit Current - Supply  
Voltage  
Fig.7 Output Voltage - Input  
Voltage  
Fig.8 Total Harmonic  
Distortion - Input Voltage  
10  
5.0  
2
1
4.0  
3.0  
2.0  
1.0  
0.0  
1
0.1  
0
0.01  
-1  
-2  
0.001  
0.001  
0.01  
0.1  
1
10  
0
2
4
6
8
10  
10  
100  
1000  
10000  
100000  
INPUT VOLTAGE (Vrms)  
VCC,VEE (V)  
FREQUENCY(Hz)  
Fig.10 Output Noise Voltage –  
Supply Voltage  
Fig.11 REC Output Voltage -  
Input Voltage  
Fig.9 Voltage Gain -  
Frequency  
2
10  
5.0  
4.0  
3.0  
2.0  
1.0  
0.0  
1
1
0.1  
0.01  
0
-1  
-2  
0.001  
0.0001  
0
2
4
6
8
10  
0.001  
0.01  
0.1  
1
10  
10  
100  
1000  
10000  
100000  
INPUT VOLTAGE (Vrms)  
VCC,VEE(V)  
FREQUENCY (Hz)  
Fig.12 REC Total Harmonic Distortion  
- Input Voltage  
Fig.13 REC Voltage Gain -  
Frequency  
Fig.14 REC Output Noise -  
Supply Voltage  
www.rohm.com  
2010.06 - Rev.A  
7/9  
© 2010 ROHM Co., Ltd. All rights reserved.  
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.  
www.rohm.com  
2010.06 - Rev.A  
8/9  
© 2010 ROHM Co., Ltd. All rights reserved.  
Technical Note  
BD3843FS,BD3841FS  
Ordering part number  
B
D
3
8
4
3
F
S
-
E
2
Part No.  
Part No.  
3843  
3841  
Package  
FS: SSOP-A24  
SSOP-A32  
Packaging and forming specification  
None: Tray  
SSOP-A24  
<Tape and Reel information>  
+6°  
4°  
10 0.2  
(MAX 10.35 include BURR)  
4°  
Tape  
Embossed carrier tape  
2000pcs  
24  
13  
Quantity  
E2  
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  
(
)
1
12  
+0.1  
0.05  
0.17  
0.1  
Direction of feed  
1pin  
0.38 0.1  
0.8  
Reel  
Order quantity needs to be multiple of the minimum quantity.  
(Unit : mm)  
SSOP-A32  
<Tape and Reel information>  
13.6 0.2  
(MAX 13.95 include BURR)  
Tape  
Embossed carrier tape  
Quantity  
2000pcs  
32  
17  
E2  
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  
(
)
1
16  
0.15 0.1  
0.36 0.1  
0.1  
0.8  
Direction of feed  
1pin  
Reel  
(Unit : mm)  
Order quantity needs to be multiple of the minimum quantity.  
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© 2010 ROHM Co., Ltd. All rights reserved.  
2010.06 - Rev.A  
9/9  
Notice  
N o t e s  
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.  
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.  
R1010  
A
配单直通车
BD3841FS-E2产品参数
型号:BD3841FS-E2
是否无铅: 不含铅
是否Rohs认证: 符合
生命周期:Active
IHS 制造商:ROHM CO LTD
零件包装代码:SSOP
包装说明:SSOP, SOP32,.3,32
针数:32
Reach Compliance Code:compliant
HTS代码:8542.39.00.01
Factory Lead Time:8 weeks
风险等级:5.6
Is Samacsys:N
商用集成电路类型:CONSUMER CIRCUIT
JESD-30 代码:R-PDSO-G32
长度:13.6 mm
功能数量:1
端子数量:32
最高工作温度:75 °C
最低工作温度:-20 °C
封装主体材料:PLASTIC/EPOXY
封装代码:SSOP
封装等效代码:SOP32,.3,32
封装形状:RECTANGULAR
封装形式:SMALL OUTLINE
峰值回流温度(摄氏度):NOT SPECIFIED
电源:7 V
认证状态:Not Qualified
座面最大高度:1.9 mm
子类别:Other Consumer ICs
最大压摆率:10 mA
最大供电电压 (Vsup):7.3 V
最小供电电压 (Vsup):5 V
表面贴装:YES
温度等级:COMMERCIAL EXTENDED
端子形式:GULL WING
端子节距:0.8 mm
端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:5.4 mm
Base Number Matches:1
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