U4083B Datasheet, PDF (5/11 Pages) TEMIC Semiconductors – Low-Power Audio Amplifier for Telephone Applications

U4083B
Typical Temperature Performance
T_amb = –20 to +70°C
Function
Input bias current at V_i
W ^{Total harmonic distortion}
V_S = 6.0 V, R_L = 32 , P_o = 125 mW,
f = 1.0 kHz
Power supply current
T V_S = 3.0 V, R_L = , CD = 0 V
T V_S = 3.0 V, R_L = , CD = 2.0 V
Typical Change
"40
+ 0.003
– 2.5
– 0.03
Units
pA/ °C
%/ °C
mmAA//
°C
°C
360
300
240
180
120
60
0
0
94 7838 e
100
80
60
40
20
0
0.1
94 7839 e
C₁ = 5 mF
1 mF
V_S switching from 0 to + 6 V
2
4
6
8
10
C₂ ( mF )
Figure 1.
Phase
99.33
92.67
86.00
Gain
1
10
100
f ( kH )
79.33
72.67
66.00
1000
Figure 2.
40
W R_f = 150 k
W R_i = 6 k
32
R_f
R_i
=
=
75 kW
3 kW
24
C_i
Input
R_i
16
0.1 mF
8
0
0
1
93 7797 e
R_f
V_O1
Amp 1 _Outputs
V_O2
Amp 2
10
100
Figure 3.
60
w C₁ 1 mF
50
m C₁ = 0.1 F
40
m C₂ = 10 F
30
20
C₁ = 0
10
0.1
1
10
100
93 7798 e
f ( kHz )
Figure 4.
TELEFUNKEN Semiconductors
5 (11)
Rev. A2, 07-Apr-97
Preliminary Information