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U4083 PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 U4083
기능 Low-Power Audio Amplifier for Telephone Applications
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U4083 데이터시트, 핀배열, 회로
U4083B
Low-Power Audio Amplifier for Telephone Applications
Description
The integrated circuit, U4083B, is a low power audio
amplifier for a telephone loudspeaker. It has differential
speaker outputs to maximize the output swing at low
supply voltages. There is no need for coupler capacitors.
The U4083B has an open loop gain of 80 dB whereas the
closed loop gain is adjusted with two external resistors. A
chip disable pin permits powering down and/or muting
the input signal.
Features
D Wide operating voltage range: 2 to 16 V
D Battery powered application due to low quiescent
supply current: 2.7 mA typical
D Chip disable input to power down the integrated
circuit
D Low power down quiescent current
D Drives a wide range of speaker loads
WD Output Power, Po = 250 mW @ RL = 32 (speaker)
D Low harmonic distortion (0.5% typical)
D Wide range gain adjustable: 0 dB to 46 dB
Benefits
D Low number of external components
D Low current consumption
Block Diagram / Application Circuit
Input
75 k W
0.1mF Ri
Ci 3 kW
Rf
4
Vi
FC1 3
1mF C1
5mF
2
C2 FC2
50 kW
125 kW
50 kW
Amp.1
+
4 kW
4 kW
+ Amp.2
Bias
circuit
VS
6
5
VO1
8
VO2
1
CD
93 7781 e
Figure 1.
7 GND
Order Information
Extended Type Number
U4083B-AFP
U4083B-AFPG3
Package
SO8
SO8
Remarks
Taped and reeled
TELEFUNKEN Semiconductors
Rev. A2, 07-Apr-97
Preliminary Information
1 (11)




U4083 pdf, 반도체, 판매, 대치품
U4083B
Electrical Characteristics
Tamb = +25°C, reference point Pin 7, unless otherwise specified
Parameters
Test Conditions / Pins
Amplifiers (AC Characteristics)
Open gain loop
(Amp. 1, f < 100 Hz)
Closed gain loop (Amp. 2)
VS = 6.0 V, f = 1.0 kHz, RL = 32 W
Gain bandwidth product
Output power
Total harmonic distortion
(f = 1.0 kHz)
Power supply rejection ra-
tio
VS
VS
VS
=
=
=
361..200VVV,,,RRRLLL===1130620WWW,,,ddd<<<111000%%%
VS = 6.0 V, RL = 32 W,
Po = 125
VS > 3.0
mW
V, RL
=
8
W,
Po = 20 mW
VS > 12 V, RL
=
32
W,
Po = 200 mW
TVS
C1
C1
C1
=
=
=
=
016...100, CmmVFF2,,,D=CCV022.S0===105m3,.0F.f0m=VF1, .0
kHz
f = 1.0 kHz
Muting
VS = 6.0 V, 1.0 kHz < f < 20 kHz,
CD = 2.0 V
Amplifiers (DC Characteristics)
Output dc level at VO1,
VO2
Rf = 75 kW
VS = 3.0 V, RL = 16 W
VS = 6.0 V
VS = 12 V
Output high level
IO = – 75 mA,
2.0 V < VS < 16 V
Output low level
Output dc offset voltage
(VO1 – VO2)
IO = 75 mA,
2.0 V < VS < 16 V
VS
RL
=
=
6.0 V,
32 W
Rf
=
75
kW,
Input bias current at Vi
VS = 6.0 V
Equivalent resistance at
Pin 3
VS = 6.0 V
Equivalent resistance at
Pin 2
VS = 6.0 V
Chip disable Pin 1
*Input voltage low
*Input voltage high
Input resistance
Power supply current
VS = VCD = 16 V
TVS = 3.0 V, RL = , CD = 0.8 V
TVS = 16 V, RL = , CD = 0.8 V
TVS = 3.0 V, RL = , CD = 2.0 V
Symbol
GVOL1
GV2
GBW
Po
Po
Po
d
d
d
PSRR
PSRR
PSRR
GMUTE
VO
VO
VO
VOH
VOL
DVO
–IIB
R
R
VIL
VIH
RCD
IS
IS
IS
Min.
80
–0.35
55
250
400
50
1.0
–30
100
18
2.0
50
Typ.
0
1.5
0.5
0.5
0.6
12
52
>70
1.15
2.65
5.65
VS–1
0.16
0
100
150
25
90
65
Max.
+0.35
1.0
1.25
+30
200
220
40
0.8
175
4.0
5.0
100
Unit
dB
dB
MHz
mW
%
dB
dB
V
V
V
mV
nA
kW
kW
V
V
kW
mA
mA
mA
4 (11)
TELEFUNKEN Semiconductors
Preliminary Information
Rev. A2, 07-Apr-97

4페이지










U4083 전자부품, 판매, 대치품
10
8
VS
RL
=
=
3V
16 W
VS
RL
=
=
3
8
V
W
6
f = 1 kHz
DGV = 34 dB
U4083B
94 7842
e
VS
RL
=
=
6V
32 W
4
2
VS
RL
=
=
16
32
V
W
VS
RL
=
=
6V
16 W
0
VS
RL
=
=
12
32
V
W
0 100 200 300 400
PO ( mW )
Figure 11.
10
94 7843
e
8
VS
RL
=
=
3V
16 W
VS
RL
=
=
3
8
V
W
6
f = 3 kHz
DGV = 34 dB
VS
RL
=
=
6V
32 W
4
VS
RL
=
=
6V
16 W
2
VS
RL
=
=
16 V
32 W Limit
VS
RL
=
=
12
32
V
W
0
0 100 200 300 400
PO ( mW )
Figure 12.
TELEFUNKEN Semiconductors
Rev. A2, 07-Apr-97
Preliminary Information
7 (11)

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