U4083B Datasheet, PDF (6/16 Pages) TEMIC Semiconductors – Low-Power Audio Amplifier for Telephone Applications

7. Electrical Characteristics
T_amb = +25°C, reference point pin 7, unless otherwise specified
Parameters
Test Conditions
Amplifiers (AC Characteristics)
Open-loop gain
(Amplifier 1, f < 100Hz)
Closed-loop gain (Amplifier 2)
Gain bandwidth product
V_S = 6.0V, f = 1.0 kHz, R_L = 32Ω
Output power
Total harmonic distortion
(f = 1.0 kHz)
Power supply rejection ratio
V_S = 3.0V, R_L = 16Ω, d < 10%
V_S = 6.0V, R_L = 32Ω, d < 10%
V_S = 12V, R_L = 100Ω, d < 10%
V_S = 6.0V, R_L = 32Ω,
P_o = 125 mW
V_S > 3.0V, R_L = 8Ω,
P_o = 20 mW
V_S > 12V, R_L = 32Ω,
P_o = 200 mW
V_S = 6.0V, ∆V_S = 3.0V
C₁ = α, C₂ = 0.01 µF
C₁ = 0.1 µF, C₂ = 0, f = 1.0 kHz
C₁ = 1.0 µF, C₂ = 5.0 µF,
f = 1.0 kHz
Muting
V_S = 6.0V, 1.0 kHz < f < 20 kHz,
CD = 2.0V
Amplifiers (DC Characteristics)
Output DC level at V_O1,
V_O2
R_f = 75 kW
Output high level
Output low level
Output DC offset voltage
(V_O1 – V_O2)
Input bias current at V_i
Equivalent resistance at Pin 3
Equivalent resistance at Pin 2
Chip disable Pin 1
Input voltage low
Input voltage high
Input resistance
Power supply current
V_S = 3.0V, R_L = 16Ω
V_S = 6.0V
V_S = 12V
I_O = –75 mA,
2.0V < V_S < 16V
I_O = –75 mA,
2.0V < V_S < 16V
V_S = 6.0V, R_f = 75 kΩ,
R_L = 32Ω
V_S = 6.0V
V_S = 6.0V
V_S = 6.0V
V_S = V_CD = 16V
V_S = 3.0V, R_L = α, CD = 0.8V
V_S = 16V, R_L = α, CD = 0.8V
V_S = 3.0V, R_L = α, CD = 2.0V
Symbol
Min.
Typ.
Max.
Unit
G_VOL1
G_V2
G_BW
P_O
P_O
P_O
d
d
d
PSRR
PSRR
PSRR
G_MUTE
V_O
V_O
V_O
V_OH
V_OL
∆V_O
–I_IB
R
R
V_IL
V_IH
R_CD
I_S
I_S
I_S
80
dB
–0.35
0
+0.35
dB
1.5
MHz
55
250
400
mW
0.5
0.5
1.0
%
0.6
dB
50
12
52
>70
dB
1.15
1.0
2.65
1.25
V
5.65
V_S – 1
V
0.16
V
–30
0
+30
mV
100
200
nA
100
150
220
kΩ
18
25
40
kΩ
0.8
V
2.0
V
50
90
175
kΩ
4.0
mA
5.0
mA
65
100
µA
6 U4083B
4655C–CORD–03/06