NTE2004 NTE Electronics, Inc., NTE2004 Datasheet
NTE2004
Manufacturer Part Number
NTE2004
Description
NTE2004, Integrated Circuit Dolby Noise Reduction Circuit
Manufacturer
NTE Electronics, Inc.
Datasheet
1.NTE2004.pdf
(2 pages)
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:
D Accurate Record Mode Frequency Response
D Excellent Frequency Response Tracking with Temperature and V
D Excellent Back–to–Back Dynamic Response – DC Shift Less Than 20mV Typ
D Improved Stability of all OP Amps
D High Reliability Packaging
Absolute Maximum Ratings:
Supply Voltage, V
Operating Temperature Range, T
Storage Temperature Range, T
Lead Temperature (During Soldering, 60sec max), T
Electrical Characteristics: (T
Note 1. All noise levels are measured CCIR/ARM weighted using a 10K source with respect to
Supply Voltage Range
Supply Current
Voltage Gain
Total Harmonic Distortion
Signal Handling
Signal–to–Noise Ratio
(Pin3–7)
3
Playback Mode
(Pin5–3)
2
Record Mode
rd
nd
Harmonic
Harmonic
Dolby level.
Parameter
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dolby
580mV
stg
A
opr
= +25 C, V
[
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Integrated Circuit
rms
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
V
f = 1kHz, Pin6 and Pin2 Connected
f = 1kHz, 0dB at Pin3, Noise Reduction Out
f = 20Hz to 10kHz, 0dB
f = 20Hz to 10kHz, +10dB
V
Note 1
Noise Reduction Circuit
CC
CC
(0dB) unless otherwised specified)
= 12V
= 12V, 1% Distortion at 1kHz
NTE2004
CC
= 12V, f = 20Hz to 20kHz. All levels referenced to
Test Conditions
L
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CC
0.4dB Typ
24.5
–0.5
Min
+12
64
74
8
–
–
–
26.0
0.05
Typ
–65 to +150 C
+15
0.2
16
72
82
–
0
0 to +70 C
Max Unit
27.5
+0.5
0.2
0.5
20
24
–
–
–
+300 C
mA
dB
dB
dB
dB
dB
24V
%
%
V
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NTE2004 Summary of contents
Page 1
... Dolby 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 ...
Page 2
Electrical Characteristics (Cont’d): (T Parameter Record Mode Frequency Response (At Pin7) Referenced to Encode Monitor Point (Pin3) Monitor Point (Pin3) Back–to–Back Frequency Response Input Resistance Output Resistance Back–to–Back Frequency Response Shift Versus Temperature Versus Supply Voltage Pin Connection Diagram C ...