參數(shù)資料
型號: U4080B
英文描述: Voice-Switched Circuit for Handsfree Operation
中文描述: 語音電路交換的免提操作
文件頁數(shù): 5/15頁
文件大?。?/td> 169K
代理商: U4080B
U4080B
Preliminary Information
TELEFUNKEN Semiconductors
Rev. A1, 20-May-96
5 (15)
Unit
Max.
Typ.
Min.
Symbol
Test Conditions / Pins
Pins 15 and 19
Parameters
Speaker amplifier
Gain, V
19
= 20 mV
rms
Input impedance
Output voltage (Pin 19 =
cap coupled to GND)
High output voltage
V
19
= 0.1 V,
V
15
= –100 mA
Low output voltage
V
19
= –0.1 V,
V
15
= +100 mA
Log amplifiers
Receive level detector
leakage current
V
8
= V
B
+ 1.0 V
Transmit level detector
leakage current
V
6
= V
B
+ 1.0 V
Transmit-Receive
switching threshold
V
8
/V
6
at 20
μ
A to switch
T-R comparator
Transmit detector
DC voltage: Idle mode
T mode
Distortion
R mode: RECI to SAO
V
27
= 10 mV
rms’
, f = 1 kHz
T mode: MIC to TO
V
9
= 5 mV
rms’
f = 1 kHz
G
SA
R
I
33
15
34
22
35
37
dB
k
V
O
2.4
3.0
3.6
V
V
OH
5.5
V
V
OL
600
mA
Pin 8
I
LR
2.0
A
Pin 6
I
LT
2.0
A
Pins 5 and 7
Pin 25
Pin 23
I
TH
0.8
1.2
V
23
V
23
0
4.0
V
Pins 15 and 27
d
1.5
%
d
2.0
%
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參數(shù)描述
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