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參數(shù)資料
| 型號： | U4090B-P |
| 英文描述： | Low power dual voltage comparators |
| 中文描述： | U4090B磷[更新9 / 03。 34頁] |
| 文件頁數(shù)： | 16/34頁 |
| 文件大小： | 622K |
| 代理商： | U4090B-P |
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16
U4090B-N
4740A–CORD–09/03
V
MPS
I
L
= 100 mA
RDC = infinite
I
MP
= 0 mA
I
L
w 14 mA
I
M
= 700 μA
RDC = 130 k
I
B
= + 20 mA
I
L
= 0 mA
V
MPS
6.7
V
V
M
V
M
1.3
3.3
V
V
B
V
B
7
7.6
V
Ringing Power Converter, IMP = 1 mA, IM = 0
Maximum output power
V
RING
= 20.6 V
RFDO: low to high
V
HYST
= V
RING
ON - V
RING
OFF
V
RING
= 30 V
f = 300 Hz to 3400 Hz I
L
> 15 mA
V
RING
= 20 V + 1.5 V
rms
V
RING
= 0 V
V
B
= 4 V
V
RING
= 25 V
V
RING
= 25 V, RFDO high
I
RING
= 25 mA
P
SA
20
17.5
11.0
5
mW
Threshold of ring frequency detector
V
RINGON
V
HYST
R
RING
V
Input impedance
4
6
k
Input impedance in speech mode
R
RINGSP
150
k
Logic level of frequency detector
V
RFDO
0
V
MP
V
Ring detector enable
Zener diode voltage
MUTR Input
V
MPON
V
RINGmax
1.8
30.8
2.0
2.2
33.3
V
V
MUTR input current
V
MUTR
= GND
I
L
> 14 mA
V
MUTR
= V
MP
Mute low; I
L
> 14 mA
I
MUTE
-20
+10
-30
μA
MUTR input voltage
V
MUTE
0.3
V
Mute high; I
L
> 14 mA
V
MUTE
V
MP
-
0.3 V
V
PD Input
PD input current
PD active, I
L
> 14 mA V
PD
= V
MP
PD = active
PD = inactive
I
L
= 14 mA, PD = active
I
L
= 100 mA, PD = active
I
pd
V
pd
V
pd
9
μA
Input voltage
2
0.3
V
Voltage drop at V
L
V
L
1.5
1.9
V
Input Characteristics of IMPSEL
Input current
I
L
14 mA
V
IMPSEL
= V
MP
V
IMPSEL
= GND
I
IMPSEL
I
IMPSEL
18
-18
μA
μA
Input voltage
Input high
V
IMPSEL
V
MP
-
0.3 V
V
Input low
V
IMPSEL
0.3
V
MUTX Input
Input current
V
MUTX
= V
MP
V
MUTX
= GND
I
MUTX
I
MUTX
20
-20
30
-30
μA
μA
Electrical Characteristics (Continued)
f = 1 kHz, 0 dBm = 775 mV
rms
, I
M
= 0.3 mA, I
MP
= 2 mA, RDC = 130 k , T
amb
= 25°C, RGSA = 560 k ,
Z
ear
= 68 nF + 100 , Z
M
= 68 nF, pin 31 open, V
IMPSEL
= GND, V
MUTX
= GND, V
MUTR
= GND, unless otherwise specified.
Parameters
Test Conditions
Symbol
Min.
Typ.
Max.
Unit
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