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参数资料
| 型号： | NTE1489 |
| 厂商： | NTE Electronics, Inc. |
| 英文描述： | Integrated Circuit Stereo Demodulator |
| 中文描述： | 立体声解调器集成电路 |
| 文件页数： | 2/3页 |
| 文件大小： | 25K |
| 代理商： | NTE1489 |
Electrical Characteristics:
(T
A
= +25
°
C, V
CC
= 12V, f = 1kHz, R
1
= 47k
, R+L = 270mV,
Pilot = 30mV unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Supply Current
I
CC
Sep.
No Signal
12
20
30
mA
Channel Separation
Pilot = 30mV
f = 100Hz
40
50
–
dB
f = 1kHz
45
55
–
dB
f = 10kHz
35
45
–
dB
Voltage Gain
A
V
CB
Monaural, V
in
= 300mV, Note 1
Monaural, V
in
= 300mV
Stereo, Pilot = 30mV
9
13
17
dB
Channel Balance
–
1.5
0
1.5
dB
–
1.5
0
1.5
dB
Monaural Total Harmonic Distortion
THD
V
in
= 300mV
R+L = 270mV,
Pilot = 30mV
–
0.02
0.1
%
Stereo Total Harmonic Distortion
THD
f = 100Hz
–
0.02
–
%
f = 1kHz
–
0.02
0.1
%
f = 10kHz
–
0.12
–
%
Pilot Level for Lamp ON
L
–
ON
Pilot Level, R
1
= 47k
Pilot Level
6
12
20
mV
rms
dB
Stereo Lamp Hysteresis
Hy.
–
6
–
Capture Range
CR
Pilot = 30mV
±
1.5
–
±
3.0
35
–
%
Ultrasonic Frequency Rejection
19kHz Rej.
Pilot = 30mV
–
dB
38kHz Rej.
Pilot = 30mV
–
45
–
dB
SCA Rejection
SCA Rej.
Pilot = 30mV, SCA = 30mV
–
70
–
dB
Maximum Input Level
V
in
S/N
Monaural, THD = 1%
–
0.7
–
V
rms
dB
Signal
–
to
–
Noise Ratio
V
in
= 300mV, After LPF
Pin16 Voltage where Stereo
Lamp
–
OFF
–
82
–
Stereo
–
Monaural Switching
SW
–
ON Voltage
V
s
–
1.4
1.6
V
VCO Stop Voltage
V
o
Pin16 Voltage where VCO Stops
7
–
V
CC
V
Note 1. A
V
is from the output level measured at the IC output terminal. A
V
can be set by the input
impedance R
1
.
Pin Connection Diagram
V
CC
Switch Filter
Switch Filter
Lt Ch Output
Stereo Lamp & 19kHz Monitor
Loop Filter
Detector Input
GND
Preamp Output
Postamp Bias
Rt Ch Output
Postamp Bias
Loop Filter
Stereo/Mono Switch & VCO Stop
OSC RC Network
Preamp Input
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
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