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參數(shù)資料
| 型號(hào)： | U4084B |
| 英文描述： | Low-Voltage, Voice-Switched Circuit for Hands-Free Operation |
| 中文描述： | 低電壓，語音開關(guān)電路免提操作 |
| 文件頁數(shù)： | 7/26頁 |
| 文件大?。?/td> | 544K |
| 代理商： | U4084B |
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U4084B
Preliminary Information
TELEFUNKEN Semiconductors
Rev. A1, 31-Jan-97
7 (26)
Unit
Max.
Typ.
Min.
Symbol
Test Conditions / Pins
Parameters
Attenuator control
C
T
voltage
Pin 14 – V
B
R mode, V
CI
= V
B
Idle mode
T mode
R mode
T mode
V
CT
240.0
0.0
–240.0
–60.0
60.0
0.0
2.0
mV
C
T
source current
C
T
sink current
C
T
slow idle current
C
T
fast idle internal
resistance
VCI input current
Dial tone detector
threshold
Microphone amplifier V
MUTE
< 0.8 V, G
VCL
= 31 dB
Output offset
I
CTR
I
CTT
I
CTS
R
FI
–85.0
40.0
–40.0
85.0
A
A
A
1.5
3.6
k
I
VCI
V
DT
–60.0
15.0
nA
mV
10.0
20.0
V
MICO –
V
B
,
Feedback R = 180 k
f < 100 Hz
MICO
vos
–50.0
0.0
+50.0
mV
Open loop gain
Gain bandwidth
Output high voltage
Output low voltage
Input bias current (MIC)
Muting ( gain)
G
VOLM
GBW
M
V
MICOH
V
MICOL
I
BM
G
G
R
MUTE
V
MUTEH
V
MUTEL
THD
M
70.0
80.0
1.0
dB
MHz
V
mV
nA
dB
dB
k
V
V
%
I
O
= –1.0 mA, V
S
= 5.0 V
I
O
= +1.0 mA
3.7
200.0
–40.0
f = 1.0 kHz, V
MUTE
= 2.0 V
300 Hz < f < 10 kHz
V
S =
V
MUTE
= 6.5 V
–55.0
–68.0
90.0
MUTE input resistance
MUTE input high
MUTE input low
Distortion
Level detectors and background-noise monitors
Transmit receive switching
threshold
50.0
2.0
0.0
V
S
0.8
300 Hz < f < 10 kHz
0.15
Ratio of current
at RLI1 + RLI2 to 20 A
at TLI1 + TLI2 to switch
from T to R
at RLO1, RLO2, TLO1,
TLO2
at RLO1, RLO2, TLO1,
TLO2
I
O
= 1.2 mA
I
TH
0.8
1.0
1.2
Source current
I
LSO
–2.0
mA
Sink current
I
LSK
4.0
A
CPR, CPT output
resistance
CPR, CPT leakage current
System distortion
R mode
T mode
R
CP
150
I
CPLK
–0.2
A
From RI to RECO
From MIC to TO includes
T attenuator
d
R
d
T
0.5
0.8
3.0
3.0
%
%
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| U4087B | Low Voltage Voice Switch Interface Circuit for Hands-free Operation in Telephone |
| U4087B-FP | Low Voltage Voice Switch Interface Circuit for Hands-free Operation in Telephone |
| U4090B-N | Low power dual voltage comparators |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| U4084B-FL | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Speakerphone Circuit |
| U4085B | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Technische Daten Technical Data |
| U4087B | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:Low Voltage Voice Switch Interface Circuit for Hands-free Operation in Telephone |
| U4087B-FP | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:Low Voltage Voice Switch Interface Circuit for Hands-free Operation in Telephone |
| U4089B | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:MONOLITHIC INTEGRATED FEATUREPHONE CIRCUIT |
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