UTC BA3308 Dual preamplifier with alc Datasheet

UNISONIC TECHNOLOGIES CO., LTD
BA3308
Preliminary
LINEAR INTEGRATED CIRCUIT
DUAL PREAMPLIFIER WITH
ALC
„
SIP-9
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.
„
SOP- 14
FEATURES
* Wide operating power supply voltage range
(VCC =4.5V ~ 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.
„
ORDERING INFORMATION
Ordering Number
Lead Free
BA3308L-G09-T
BA3308L-S14-R
BA3308L-S14-T
Halogen Free
BA3308G-G09-T
BA3308G-S14-R
BA3308G-S14-T
www.unisonic.com.tw
Copyright © 2011 Unisonic Technologies Co., Ltd
Package
Packing
SIP-9
SOP-14
SOP-14
Tube
Tape Reel
Tube
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QW-R107-015.Ba
BA3308
„
Preliminary
LINEAR INTEGRATED CIRCUIT
BLOCK DIAGRAM
SIP-9
SOP-14
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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QW-R107-015.Ba
BA3308
„
Preliminary
ABSOLUTE MAXIMUM RATING (Ta = 25℃)
PARAMETER
Power Supply Voltage
Power Dissipation
Derating above
Ta = 25℃
SYMBOL
VCC
SIP-9
SOP-14
SIP-9
SOP-14
Operating Temperature
Storage Temperature
„
LINEAR INTEGRATED CIRCUIT
PD
TOPR
TSTG
UNIT
V
mW
℃/mW
℃
℃
RECOMMENDED OPERATING CONDITIONS (Ta = 25℃)
PARAMETER
SYMBOL
Power Supply Voltage
VCC
Note: This IC is not designed to be radiation-resistant.
„
RATINGS
16
950
450
9.5
4.5
0 ~ +85
-65 ~ +125
RATINGS
+4.5~ +14
UNIT
V
ELECTRICAL CHARACTERISTICS
(Ta =25℃, VCC =7.0V, f =1kHz and BPF: 20Hz ~ 20kHz, unless otherwise noted.)
PARAMETER
SYMBOL
TEST CONDITIONS
Maximum Output Voltage
VOM
THD=1%
Conversion with Rg=2.2kΩ and
Input Conversion Noise Voltage
VNIN
NAB34dB at 1kHz
Quiescent Current
IQ
VIN =0Vrms
Input Resistance
RIN
Total Harmonic Distortion
THD
NAB34dB, VOUT =40mVrms
Open Loop Voltage Gain
GVO
VOUT = −10dBV
RG =3.9kΩ, VIN =−70dBV
ALC Range
ALC
reference, THD=3%
ALC Channel Balance
∆ALC
VIN = −60dBV, −30dBV
Channel Separation
CS
VO =0dBV, NAB34dB
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
MIN
0.6
TYP
1.2
MAX
UNIT
Vrms
1.0
2.0
μVrms
4.5
45
0.3
70
3.3
31.5
0.1
80
mA
kΩ
%
dB
40
70
60
0
75
1.5
15
dB
2.5
dB
dB
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BA3308
„
Preliminary
LINEAR INTEGRATED CIRCUIT
TYPICAL APPLICATION CIRCUIT
MUTE
ch2
+
ch1
+
ALC
1
2
4
3
R5
18kΩ
R1
3.9KΩ
R3
39Ω
C3
100μF
+
+
+ C1
5
R7
1MΩ
C5
10μF
C7
22μF
+
7
C8
330μF +
C6
10μF
10μF
9
8
R2
3.9kΩ
Vcc
7V
R6
18kΩ
+
C2
10μF
R8
220Ω
R4
39Ω
+
C4
100μF
OUTPUT2 INPUT2
INPUT1 OUTPUT1
R9 (R10)
R11(R12) 120kΩ
4.3kΩ
+
6
For playback,instead of R5 and R6,connect
the following NAB time constant circuit
between pins 1 and 3 and 7 and 9.
C9 (C10)
0.027μF
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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