參數(shù)資料
型號： NTE1744
廠商： NTE Electronics, Inc.
英文描述： Quad, General Purpose Differential Comparator 14-PDIP -40 to 85
中文描述： 集成電路雙dbxII降噪系統(tǒng)
文件頁數(shù)： 2/3頁
文件大小： 22K
代理商： NTE1744
Electrical Characteristics (Cont’d):
(T
A
= +25
°
C, V
CC
= 3V unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max Unit
Maximum Output Voltage
ENCODE Mode
V
OME
V
OMD
THD
D
THD = 1%, f = 1kHz
80
150
–
mV
DECODE Mode
200
450
–
mV
Total Harminic Distortion
(DECODE Mode)
V
O
= +14dB, f = 1kHz
–
0.15
0.3
%
Noise Output Voltage
ENCODE Mode
V
NOE
V
NOD
Input Short, A
–
weight
–
100
200
μ
V
μ
V
DECODE Mode
–
3
6
Difference Between Channels
ENCODE Mode
CD
E
CD
D
CT
V
IN
= 0dB, f = 1kHz
–
0
1.2
dB
DECODE Mode
–
0
1.2
Crosstalk (ENCODE Mode)
Measuring Channel: Short
Another Channel: Output 200mV, f = 1kHz
50
60
–
dB
Ripple Rejection Ratio (DECODE Mode)
SVRR
f = 60Hz, V = 100mV, Input Short
40
55
–
dB
Quiescent Current
I
CC
V
OFF
V
CC
= 3V, Input Short
V
IN
= +20dB, f = 1kHz
–
1.8
3.2
mA
Input/Output Characteristics
dbx OFF Mode
17
20
23
dB
Total Harmonic Distortion
dbx OFF Mode
THD
OFF
V
IN
= +20dB, f = 1kHz
–
0.3
1.0
%
Output Noise Voltage (dbx OFF Mode)
Vn
OFF
Input Short, A
–
weight
–
10
20
μ
V
Note 1. 0dB = 20mV =
–
34dBV
V
OUT
A
ON/OFF A
V
OUT
B
ON/OFF B
V
CC
N.C.
RMS Input B
Pin Connection Diagram
Encode
Decode
NI
CAP1 B
CAP2 B
1
2
3
4
5
Adjust
GND
RMS Input A
Timing A
CCA Input A
6
7
8
9
10
11
CAP1 A
CAP2 A
22
21
20
19
18
CCA Input B
17
16
15
14
13
12
Timing B
I Time
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