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參數(shù)資料
| 型號(hào)： | 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)： | 1/3頁 |
| 文件大?。?/td> | 22K |
| 代理商： | NTE1744 |
NTE1744
Integrated Circuit
Dual dbxII Noise Reduction System
Description:
The NTE1744 is an integrated circuit in a 22–Lead DIP type package designed for use in dbxII noise
reduction circuits for stereo applications. This device can be used for U.S. sound multiplex TV ap-
plications and low voltage operation (1.8V) allows the NTE1744 to be used in battery–operated Hi–Fi
equipment.
Features:
Wide Dynamic Range: 110dB
Low Operating Voltage: V
CC
min = 1.8V
Minimum Number of External Components
Adjustment: Only One
Low Power Consumption
Wide Operating Voltage Range: V
CC
= 1.8V to 14V
Absolute Maximum Ratings:
(T
A
= +25
°
C unless otherwise specified)
Supply Voltage, V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Supply Current, I
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Dissipation (T
A
= +75
°
C), P
D
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Ambient Temperature range, T
opr
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Temperature Range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14.4V
5mA
100mW
–20
°
to +75
°
C
–55
°
to +150
°
C
Electrical Characteristics:
(T
A
= +25
°
C, V
CC
= 3V unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Input/Output Characteristics
ENCODE Mode
V
OE–1
V
OE–2
V
OE–3
V
OD–1
V
OD–2
V
OD–3
V
IN
= +20dB, f = 1kHz
V
IN
= 0dB, f = 1kHz
V
IN
= –40dB, f = 1kHz
V
IN
= +10dB, f = 1kHz
V
IN
= 0dB, f = 1kHz
V
IN
= –20dB, f = 1kHz
+7.5
+10.0 +12.5
dB
–2.0
0
+2.0
dB
–23
–20
–17
dB
DECODE Mode
+17
+20
+23
dB
–2.0
0
+2.0
dB
–44
–40
–36
dB
Note 1. 0dB = 20mV = –34dBV
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