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BA3308FV PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 BA3308FV
기능 Preamps
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BA3308FV 데이터시트, 핀배열, 회로
Audio Accessory ICs
Preamps with Built-in ALC
BA3308F,BA3308FV
No.11087ECT01
Description
The BA3308F/FV is a dual preamplifier for recording and playback with ALC (auto level control), developed for stereo radio,
cassette recorders, tape recorders, and other pre amplifiers audio applications.
ALC circuit has a build in rectification circuit with wide adjustable dynamic range, high gain, low distortion amplifiers with
direct coupling and mute circuit, used to cut off pop noise during power on.
Available in SOP14, or SSOP-B14 Packages.
Features
1) Built-in ALC rectification diode
2) Wide operating power supply voltage range (VCC=4.5~14 V)
3) Low current consumption (IQ=3.5mA)
4) High gain (GVO=80dB)
5) Low distortion (THD=0.1%)
6) Low noise (VNIN=1 μVrms)
7) Input coupling capacitor not needed
8) Good ALC channel balance
9) Built-in power supply mute circuit
10) Dynamic range of ALC can be changed by attaching input resistance.
Applications
Stereo radio, cassette tape recorders, stereo cassette decks, home stereos, music centers, etc.
Line up matrix
Part No.
Package
BA3308F
SOP14
BA3308FV
SSOP-B14
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
1/9
2012.06 - Rev.C




BA3308FV pdf, 반도체, 판매, 대치품
BA3308F,BA3308FV
Electrical characteristic curves (Reference data)
Technical Note
Fig.2 Quiescent current vs.
power supply voltage
Fig.3 Quiescent current vs.
ambient temperature
Fig.4 Voltage gain vs. frequency
Fig.5 Total harmonic distortion vs.
frequency
Fig.6 Voltage gain vs.
supply voltage
Fig.7 Closed loop voltage gain vs.
ambient temperature
Fig.8 Input conversion noise voltage
vs. signal source resistance
Fig.9 Channel separation vs.
frequency
Fig.10 ALC characteristics
Fig.11 Input/output characteristics
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
Fig.12 Maximum output voltage vs.
power supply voltage
Fig.13 Maximum output voltage vs.
load resistance
4/9 2012.06 - Rev.C

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BA3308FV 전자부품, 판매, 대치품
BA3308F,BA3308FV
Measurement circuit
Technical Note
10k
10μF
V
OUTPUT1
120k
1
1.2k 33k
2 SW4A
0.1μF
100μF
22k
1
39V
SW2A
V2
2
3 SW6A
30k
V
V1
INPUT1
SW5
VCC
1M
22μF
220
330μF
10μF
10k
1
2
3
4 ALC
5
6
7
14
13
12
11
10
9
8
0.1μF
1.2k
120k
33k
OUTPUT2
V
2
SW4B
1
39
SW2B
100μF
3.9k SW3A
3.9k SW3B
30k INPUT2
1
V2 V
2.2k
3
2 SW1B
SW6B
V
V1
Application circuit
FFigig..1177
OUTPUT1
C5 10μF
R5
18k
C3 100μF
R3 39
R7
VCC=7 1M
R8
22μF
C7
330μF
220C8
1
2
3
4
5
6
7
C6 10μF
OUTPUT2
ALC
R6
14 C5
R1
13 INPUT1
3.9k10μF
12
11
10
R2 C2
INPUT2
9
3.9k10μF
8
18k
R4 39
R11 (R12)
4.3k
R9 (R10)
120k
C9 (C10)
0.027μF
C4 100μF
For playback, connect the following NAB time constant circuit between
pins 11 and 1 and pins 10 and 7 in place of R5 and R6.
Fig.18
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
7/9
2012.06 - Rev.C

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