U4083B Datasheet, PDF (4/11 Pages) TEMIC Semiconductors – Low-Power Audio Amplifier for Telephone Applications

U4083B
Electrical Characteristics
T_amb = +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)
V_S = 6.0 V, f = 1.0 kHz, R_L = 32 W
Gain bandwidth product
Output power
Total harmonic distortion
(f = 1.0 kHz)
Power supply rejection ra-
tio
V_S
V_S
V_S
=
=
=
361..200VVV,,,RRR_{LLL===1130620}WWW,,,ddd<<<111000%%%
V_S = 6.0 V, R_L = 32 W,
P_o = 125
V_S > 3.0
mW
V, R_L
=
8
W,
P_o = 20 mW
V_S > 12 V, R_L
=
32
W,
P_o = 200 mW
T ^VS
C₁
C₁
C₁
=
=
=
=
016...100, ^Cmm^{VFF2,,,D=CCV0}₂₂^{.S0===105m3,.0F.f0}_m=VF1, .0
kHz
f = 1.0 kHz
Muting
V_S = 6.0 V, 1.0 kHz < f < 20 kHz,
CD = 2.0 V
Amplifiers (DC Characteristics)
Output dc level at V_O1,
V_O2
R_f = 75 kW
V_S = 3.0 V, R_L = 16 W
V_S = 6.0 V
V_S = 12 V
Output high level
I_O = – 75 mA,
2.0 V < V_S < 16 V
Output low level
Output dc offset voltage
(V_O1 – V_O2)
I_O = 75 mA,
2.0 V < V_S < 16 V
V_S
R_L
=
=
6.0 V,
32 W
R_f
=
75
kW,
Input bias current at V_i
V_S = 6.0 V
Equivalent resistance at
Pin 3
V_S = 6.0 V
Equivalent resistance at
Pin 2
V_S = 6.0 V
Chip disable Pin 1
* Input voltage low
* Input voltage high
Input resistance
Power supply current
V_S = V_CD = 16 V
T V_S = 3.0 V, R_L = , CD = 0.8 V
T V_S = 16 V, R_L = , CD = 0.8 V
T V_S = 3.0 V, R_L = , CD = 2.0 V
Symbol
G_VOL1
G_V2
G_BW
Po
Po
Po
d
d
d
PSRR
PSRR
PSRR
G_MUTE
V_O
V_O
V_O
V_OH
V_OL
DV_O
–I_IB
R
R
V_IL
V_IH
R_CD
I_S
I_S
I_S
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
V_S–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