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參數(shù)資料
| 型號： | U4090B-N |
| 英文描述： | Low power dual voltage comparators |
| 中文描述： | U4090B氮[更新9 / 03。 34頁] |
| 文件頁數(shù)： | 14/34頁 |
| 文件大?。?/td> | 622K |
| 代理商： | U4090B-N |
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14
U4090B-N
4740A–CORD–09/03
Receiving Amplifier, I
L
= 14 mA, RGR = 62 k, Unless Otherwise Specified, V
GEN
= 300 mV
I
L
14 mA, single ended
differential MUTR = GND
R
GR
= 62 k differential
R
GR
= 22 k differential
Amplification of DTMF signal from
DTMF IN to RECO 1, 2
V
MUTX
= V
MP
I
L
> 14 mA,
f = 300 to 3400 Hz
Gain change with current
I
L
= 14 to 100 mA
Gain deviation
T
amb
= -10 to +60 C
Ear-protection differential
I
L
14 mA, V
GEN
= 11 V
rms
MUTE suppression
a) RECATT
b) RA2
c) DTMF operation
V
MUTX
= V
MP
Output voltage d 2% differential
I
L
= 14 mA, Z
ear
= 68 nF + 100
Adjustment range of receiving gain
G
R
-8
-2
+2
+8
-0.25
dB
Receiving amplification
G
R
-1.75
- 1
7.5
dB
I
L
14 mA
G
RM
7
10
13
dB
Frequency response
G
RF
±0.5
dB
G
R
G
R
EP
±0.5
±0.5
2.2
dB
dB
V
rms
I
L
14 mA
MUTR = open
V
MUTR
= V
MP
G
R
60
dB
0.775
V
rms
mA
(peak)
Maximum output current d 2%
Z
ear
= 100
4
Receiving noise psophometrically
weighted
Output resistance
Line loss compensation
Z
ear
= 68 nF + 100
I
L
14 mA
Each output against GND
R
AGA
= 20 k , I
L
= 100 mA
I
L
= 10 mA
I
MP
= 1 mA
I
M
= 300 μA
V
GEN
= 560 mV
RDC = 68 k
V
IMPSEL
= GND
V
IMPSEL
= V
MP
I
L
= 10 mA
I
MP
= 1 mA
V
GEN
= 560 mV
RDC = 68 k
ni
-80
-77
dBmp
Ro
G
RI
10
-5.0
-7.0
-6.0
dB
Gain at low operating current
G
R
-2
-1
0
dB
AC impedance
Z
imp
Z
imp
570
840
600
900
640
960
Distortion at low operating current
dR
5
%
Speaker Amplifier
Minimum line current for operation
Input resistance
No AC signal
Pin 24
V
SAI
= 3 mV
I
L
= 15 mA
R
GSA
= 560 k
R
GSA
= 20 k
I
Lmin
15
22
mA
k
14
Gain from SAI to SAO
G
SA
35.5
36.5
-3
37.5
dB
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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