參數(shù)資料
型號(hào): U4083
元件分類: 運(yùn)動(dòng)控制電子
英文描述: Low-Power Audio Amplifier for Telephone Applications
中文描述: 低功耗音頻放大器電話應(yīng)用
文件頁(yè)數(shù): 4/11頁(yè)
文件大?。?/td> 132K
代理商: U4083
U4083B
TELEFUNKEN Semiconductors
Rev. A2, 07-Apr-97
Preliminary Information
4 (11)
Electrical Characteristics
T
amb
= +25
°
C, reference point Pin 7, unless otherwise specified
Parameters
Test Conditions / Pins
Symbol
Min.
Typ.
Max.
Unit
Amplifiers (AC Characteristics)
Open gain loop
(Amp. 1, f < 100 Hz)
Closed gain loop (Amp. 2)
G
VOL1
80
dB
V
S
= 6.0 V, f = 1.0 kHz, R
L
= 32
G
V2
G
BW
Po
Po
Po
–0.35
0
+0.35
dB
MHz
Gain bandwidth product
Output power
1.5
V
S
= 3.0 V, R
L
= 16 , d < 10%
V
S
= 6.0 V, R
L
= 32 , d < 10%
V
S
= 12 V, R
L
= 100 , d < 10%
V
S
= 6.0 V, R
L
= 32 ,
P
o
= 125 mW
V
S
> 3.0 V, R
L
= 8 ,
P
o
= 20 mW
V
S
> 12 V, R
L
= 32 ,
P
o
= 200 mW
V
S
= 6.0 V, V
S
= 3.0 V
C
1
=
, C
2
= 0.01 F
C
1
= 0.1 F, C
2
= 0, f = 1.0 kHz
C
1
= 1.0 F, C
2
= 5.0 F,
f = 1.0 kHz
V
S
= 6.0 V, 1.0 kHz < f < 20 kHz,
CD = 2.0 V
55
250
400
mW
Total harmonic distortion
(f = 1.0 kHz)
d
d
d
0.5
0.5
0.6
1.0
%
Power supply rejection ra-
tio
PSRR
PSRR
PSRR
50
12
52
dB
Muting
G
MUTE
>70
dB
Amplifiers (DC Characteristics)
Output dc level at V
O1
,
V
O2
R
f
= 75 kW
Output high level
V
S
= 3.0 V, R
L
= 16
V
S
= 6.0 V
V
S
= 12 V
I
O
= – 75 mA,
2.0 V < V
S
< 16 V
I
O
= 75 mA,
2.0 V < V
S
< 16 V
V
S
= 6.0 V, R
f
= 75 k ,
R
L
= 32
V
S
= 6.0 V
V
S
= 6.0 V
V
O
V
O
V
O
V
OH
1.0
1.15
2.65
5.65
V
S
–1
1.25
V
V
Output low level
V
OL
0.16
V
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
Input voltage
Input resistance
Power supply current
V
O
–I
IB
R
–30
0
+30
200
220
mV
nA
k
100
150
100
V
S
= 6.0 V
R
18
25
40
k
low
high
V
S
= V
CD
= 16 V
V
S
= 3.0 V, R
L
=
V
S
= 16 V, R
L
=
V
S
= 3.0 V, R
L
=
V
IL
V
IH
R
CD
I
S
I
S
I
S
2.0
50
90
0.8
175
4.0
5.0
100
V
V
kW
mA
mA
A
, CD = 0.8 V
, CD = 0.8 V
, CD = 2.0 V
65
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