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U4050B 参数 Datasheet PDF下载

U4050B图片预览
型号: U4050B
PDF下载: 下载PDF文件 查看货源
内容描述: 语音电路与线路供电扬声器放大器 [Speech Circuit with Line-Powered Loudspeaker Amplifier]
分类和应用: 放大器
文件页数/大小: 18 页 / 334 K
品牌: TEMIC [ TEMIC SEMICONDUCTORS ]
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U4050B
Parameters
Test Conditions / Pins
Supply voltage
see figure 4
Test conditions: V
MIC
= 10 mV; T
amb
= –10 to 60°C
Output voltage
I
L
= 15 mA
I
D
= 2 mA
RC = 68 kΩ
I
L
= 15 mA
I
D
= 2 mA
RC = 130 kΩ
I
L
= 100 mA
I
D
= 0 mA
T
amb
= –10 to + 60°C
I
M
= 0.3 mA
I
L
15 mA
RC = 130 kΩ
see figure 9
I
L
15 mA
Symbol
Min.
Typ.
Max.
Unit
V
D
2.9
V
V
D
3.1
V
V
D
6.1
V
Supply voltage for an
electret microphone
Squelch
Attenuation of
transmit gain
Attenuation of
speaker amplifier
Switching level
of squelch
Squelch disable
MUTE input
MUTE input current
w
V
M
1.45
3.3
V
w
I
w
15 mA
R
= 18 to 560 kΩ
I
w
15 mA
RSQ = 100 kΩ
I
w
15 mA
L
GSA
L
L
D
G
S
D
G
SA
V
mico
RSQ
I
MUTE
8
7.5
6.5
0.5
10
10
12
12.5
10
dB
dB
mV
MΩ
µA
1
20
2
30
MUTE input voltage
PD input
PD input current
Input voltage
Current consumption
Voltage drop at V
L
see figure 10
MUTE active
I
L
> 15 mA
V
MUTE
= V
D
Mute inactive
I
L
> 15 mA
Mute active
I
L
> 15 mA
see figure 10
PD active
I
L
> 15 mA
V
PD
= V
D
PD = active
PD = inactive
V
D
= V
PD
= 4.5 V
PD = active
I
L
= 15 mA
I
L
= 15 mA
PD = active
I
L
=100 mA
PD = active
V
MUTE
V
MUTE
1.5
0,3
0,3
V
V
I
PD
V
PD
V
PD
I
DPD
2
20
50
µA
V
V
µA
– 40
0.3
– 100
V
L
1.5
V
V
L
1.7
V
Rev. A2, 05-Mar-98
7 (18)