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參數資料
| 型號： | NTE2004 |
| 廠商： | NTE Electronics, Inc. |
| 英文描述： | Integrated Circuit Dolby Noise Reduction Circuit |
| 中文描述： | 集成電路杜比降噪電路 |
| 文件頁數： | 1/2頁 |
| 文件大小： | 24K |
| 代理商： | NTE2004 |
NTE2004
Integrated Circuit
Dolby Noise Reduction Circuit
Description:
The NTE2004 is a monolithic audio noise reduction circuit in a 16–Lead DIP type package designed
for use in Dolby
B–Type noise reduction systems. This device is used to reduce the level of back-
ground noise introduced during recording and playback of audio signals on magnetic tape and to im-
prove the noise level in FM broadcast reception.
Features:
Accurate Record Mode Frequency Response
Excellent Frequency Response Tracking with Temperature and V
CC
±
0.4dB Typ
Excellent Back–to–Back Dynamic Response – DC Shift Less Than 20mV Typ
Improved Stability of all OP Amps
High Reliability Packaging
Absolute Maximum Ratings:
Supply Voltage, V
CC
Operating Temperature Range, T
opr
Storage Temperature Range, T
stg
Lead Temperature (During Soldering, 60sec max), T
L
24V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0
°
to +70
°
C
–65
°
to +150
°
C
+300
°
C
Electrical Characteristics:
(T
A
= +25
°
C, V
CC
= 12V, f = 20Hz to 20kHz. All levels referenced to
580mV
rms
(0dB) unless otherwised specified)
Parameter
Test Conditions
Min
Typ
Max
Unit
Supply Voltage Range
8
–
20
V
Supply Current
V
CC
= 12V
–
16
24
mA
Voltage Gain
(Pin5–3)
f = 1kHz, Pin6 and Pin2 Connected
24.5
26.0
27.5
dB
(Pin3–7)
f = 1kHz, 0dB at Pin3, Noise Reduction Out
–0.5
0
+0.5
dB
Total Harmonic Distortion
2
nd
Harmonic
3
rd
Harmonic
f = 20Hz to 10kHz, 0dB
–
0.05
0.2
%
f = 20Hz to 10kHz, +10dB
–
0.2
0.5
%
Signal Handling
V
CC
= 12V, 1% Distortion at 1kHz
+12
+15
–
dB
Signal–to–Noise Ratio
Record Mode
Note 1
64
72
–
dB
Playback Mode
74
82
–
dB
Note 1. All noise levels are measured CCIR/ARM weighted using a 10K source with respect to
Dolby
level.
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