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BA3308 PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 BA3308
기능 DUAL PREAMPLIFIER
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BA3308 데이터시트, 핀배열, 회로
UTC BA3308
LINEAR INTEGRATED CIRCUIT
DUAL PREAMPLIFIER WITH ALC
DESCRIPTION
The UTC BA3308 is designed to have dual preamplifier
ICs with built – in ALC circuits for use in stereo amplification.
The preamplifiers have high gain and low distortion. A built-in
rectifier for ALC circuit implies good channel balance and
large dynamic range can be constructed with addition of just
an external time constant circuit.
SIP-9
FEATURES
* Wide operating power supply voltage range
(VCC =6.0V ~ 14V)
* Power-on mute circuit to avoid “pop” noise generation.
* No input coupling capacitors are necessary
* High gain (GVO=80dB)and low noise (VNIN=1µVrms)
* Low distortion (THD=0.1%)
* Good ALC channel balance with built-in ALC rectifier diode
* Adjustable ALC dynamic range by external input resistor.
BLOCK DIAGRAM
SIP-9
SOP-14
*Pb-free plating product number: BA3308L
-ch1
+
www.DataSheet4U.com
MUTE
ALC
ch2-
+
1234
NF1 INPUT1 OUTPUT1 GND
5
ALC
678
Vcc OUTPUT2 INPUT2
9
NF2
SOP-14
OUTPUT1
GND
N.C.
ALC
VCC
N.C.
OUTPUT2
1
2
3
4
5
6
7
Vcc
ALC
14 N.C.
+ 13 INPUT1
- 12 N.C.
11 NF1
- 10 NF2
+ 9 INPUT2
8 N.C.
UTC UNISONIC TECHNOLOGIES CO., LTD. 1
www.unisonic.com.tw
QW-R107-015,A




BA3308 pdf, 반도체, 판매, 대치품
UTC BA3308
LINEAR INTEGRATED CIRCUIT
TOTAL APPLICATION CIRCUIT
330 F +
220
L RA
+ 9V
1000 F
MIC
RADIO
etc.
+ 0.027 F Cc CA
120k 4.3k
18k
3.9k
3.9k
CB
2
1 63
UTC
CB
8
BA3308
9
45
+
7
10 F
+
+
10 F
39 18k
100 F + 120k 4.3k
33 F
+
100 F
10k
2.2
120
F4
5
+
+
17
UTC
47
+
32
F
470 F
+
2.2
10k
2.2 F
+8
BA5406
6
10
11
9 12 +
120 47 F 2.2
0.22 F
+
470 F
33 F + + 47 F
0.22 F
SP
3
SP
3
BIAS
OSC
0.027 F
L RA
Cc CA
Notes:
(1) Switches are in the playback positions.
(2) Set the values of RA and CA depending on the characteristics of the playback/recording head.
(3) The capacitor CB is for head resonance treble compensation during playback, and prevention of high-frequency noise.
The recommended value is about 1000pF.
(4) L and CC are a bias trap.
UTC UNISONIC TECHNOLOGIES CO., LTD. 4
www.unisonic.com.tw
QW-R107-015,A

4페이지










BA3308 전자부품, 판매, 대치품
UTC BA3308
LINEAR INTEGRATED CIRCUIT
ELECTRICAL CHARACTERISTIC CURVES
Fig.4 Quiescent current vs.power supply voltage
16
14
12
10
8
6
4
2
0
0 2 4 6 8 10 12 14 16
POWER SUPPLY VOLTAGE , Vcc (V)
Fig.5 Quiescent current vs.ambient temperature
12
VCC=7V
10
8
6
4
2
0
-50 -25 0 25 50 75 100
AMBIENT TEMPERATURE, Ta ( )
Fig.6 Voltage gain vs. power supply voltage
100
VOUT=300mVrms
90
f=1kHz
RL=10K
80
70
60
50 R5, R6=6.8k
40
30
20
0 2 4 6 8 10 12 14 16
POWER SUPPLY VOLTAGE, Vcc (V)
Fig.7 Closed loop voltage gain vs. ambient
temperature
120
Vcc=7V
VOUT=300mVrms
100
f=1kHz
RL=10k
80
60
R5, R6=18k
40
20
0
-50 -25 0 25 50 75 100
AMBIENT TEMPERATURE, Ta ( )
UTC UNISONIC TECHNOLOGIES CO., LTD. 7
www.unisonic.com.tw
QW-R107-015,A

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