NTE1236 [NTE]
Integrated Circuit TV Sound IF System; 集成电路电视机声音中频系统
| 型号： | NTE1236 |
| 厂家： | 
NTE ELECTRONICS |
| 描述： | Integrated Circuit TV Sound IF System |
| 文件： | 总2页 (文件大小：81K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
NTE1142
Integrated Circuit
FM Multiplex Stereo Decoder
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V
Supply Current, ICC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18mA
Lamp Driver Current, IL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100mA
Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400mW
Operating Temperature Range (VCC = 12V), Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −10 to +75°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −40 to +125°C
Electrical Characteristics: (TA = +25°C unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max
Unit
mA
kΩ
dB
dB
dB
dB
dB
%
Standby Current
ICC
VCC = 12V
−
−
10
20
18
−
Input Impedance
Zi
f = 1.0kHz
f = 100kHz (Note 1)
f = 1.0kHz
−
35
−
Stereo Channel Seperation
Sep
30
−
45
−
f = 10kHz with 15kHz LPF
38kHz BEF
30
−
Voltage Gain
AV
−
−1.5
0.2
0.5
−
Channel Balance
Total Harmonic Distortion
Ch. B
−
2.0
1.0
−
Monoaural Input, f = 1.0kHz
THD
−
Mute On
Mute Off
Lamp ON
Lamp Off
Stereo
Mono
0.6 0.85
V
Audio Muting Voltage
(Required at Pin 5)
−
−
−
−
1.08 1.5
V
12
22
mVrms
mVrms
V
Lamp Indictaor Input Level
8.4
−
1.13 1.5
Stereo−Monaural Switching
Voltage (Required at Pin 4)
0.6 0.82
−
−
−
−
−
V
19kHz (Note 2)
38kHz (Note 2)
without filter
(Note 3)
−
−
30
25
55
55
dB
dB
dB
dB
Ultrasonic Frequency Rejection
Inherent SCA Rejection
SCArej
−
Attenuation in Muting Mode
45
Note 1. Measurement made with 200mVrms Standard Multiplex Composite Signal Containing Left
(45%) and Right (45%) audio information with a 10% (19kHz) pilot signal. Modulation fre-
quency is 1.0kHz unless otherwise specified.
Note 2. Referenced to 1.0kHz output signal with Standard Multiplex Composite Input Signal.
Note 3. Referenced to 1.0kHz output signal with either Standard Multiplex Composite or Monoaural
Input Signal.
Pin Connection Diagram
(Front View)
19kHz Tank
1
14 Filter Network
13 38kHz Tank
19kHz Tank
Input
2
3
Rt Channel Output
12
Stereo Switch
Mute Switch
4
5
11 Lt Channel Output
10 38kHz Tank
Lamp Drive
GND
6
7
9
8
VCC
N.C.
14
8
1
7
.785 (19.95)
Max
.300
(7.62)
.200 (5.08)
Max
.100 (2.45)
.099 (2.5) Min
.600 (15.24)
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