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BD3843FS PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 BD3843FS
기능 6ch / 9ch Stereo Input Selectors
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BD3843FS 데이터시트, 핀배열, 회로
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
23
Package
SSOP-A24
SSOP-A32
Absolute maximum ratings (Ta=25)
Parameter
Symbol
Ratings
Unit
Power Supply Voltage
VCC
VEE
7.5 *1
-7.5
V
Input signal voltage
Power Dissipation
Operating temperature
VIN VCC+0.3VEE-0.3 V
Pd
800 (BD3843FS)
950 (BD3841FS)
*2 mW
Topr 20+75
Storage temperature
Tastg
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.
*2 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).
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
1/9
2010.06 - Rev.A




BD3843FS pdf, 반도체, 판매, 대치품
BD3843FS,BD3841FS
Technical Note
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 D4 D3 D2 D1 D0
Data
RECA RECB
INPUT FUNCTION 1 INPUT FUNCTION 2 0:OFF 0:OFF * 0 0 0 Select Address
1:ON 1:ON
(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 D1 D0
Data
RECA RECB RECC
INPUT FUNCTION 1 INPUT FUNCTION 2 0:OFF 0:OFF 0:OFF * * * 1 0 1
1:ON 1:ON 1:ON
*:Don’t care.
(Ex.)
MSB
Data input direction
LSB
Data L
"L" represents latch.
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
4/9
2010.06 - Rev.A

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BD3843FS 전자부품, 판매, 대치품
BD3843FS,BD3841FS
Reference data
5
4
3 VCC
2
1
0
-1
-2 VEE
-3
-4
-5
0 2 4 6 8 10
VCC,VEE (V)
Fig.6 Circuit Current - Supply
Voltage
2
1
0
-1
-2
10
100 1000 10000 100000
FREQUENCY(Hz)
Fig.9 Voltage Gain -
Frequency
10
1
0.1
0.01
0.001
0.0001
0.001 0.01
0.1
1
INPUT VOLTAGE (Vrms)
10
Fig.12 REC Total Harmonic Distortion
- Input Voltage
Technical Note
10
1
0.1
0.01
0.001
0.001 0.01
0.1
1
10
INPUT VOLTAGE (Vrms)
Fig.7 Output Voltage - Input
Voltage
5.0
4.0
3.0
2.0
1.0
0.0
0
2468
VCC,VEE (V)
10
Fig.10 Output Noise Voltage –
Supply Voltage
2
1
0
-1
-2
10
100 1000 10000 100000
FREQUENCY (Hz)
Fig.13 REC Voltage Gain -
Frequency
10
1
0.1
0.01
0.001
0.0001
0.001 0.01 0.1
1
INPUT VOLTAGE (Vrms)
10
Fig.8 Total Harmonic
Distortion - Input Voltage
10
1
0.1
0.01
0.001
0.001
0.01
0.1
1
INPUT VOLTAGE (Vrms)
10
Fig.11 REC Output Voltage -
Input Voltage
5.0
4.0
3.0
2.0
1.0
0.0
0
2468
VCC,VEE(V)
10
Fig.14 REC Output Noise -
Supply Voltage
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
7/9
2010.06 - Rev.A

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BD3843FS

6ch / 9ch Stereo Input Selectors

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