DataSheet26.com

NTE743 PDF даташит

Спецификация NTE743 изготовлена ​​​​«NTE Electronics» и имеет функцию, называемую «Integrated Circuit Phase Lock Loop (PLL) Stereo Decoder».

Детали детали

Номер произв NTE743
Описание Integrated Circuit Phase Lock Loop (PLL) Stereo Decoder
Производители NTE Electronics
логотип NTE Electronics логотип 

3 Pages
scroll

No Preview Available !

NTE743 Даташит, Описание, Даташиты
NTE743
Integrated Circuit
Phase Lock Loop (PLL) Stereo Decoder
Description:
The NTE743 requires only a single, non critical resistive tuning adjustment. This device derives left
and right audio channels from the standard composite stereo decoder can also be used in a number
of subscription TV decoder schemes or in various proposed TV stereo systems.
Using phase–lock techniques, the subcarrier (38 KHz for FM stereo) is regenerated in phase with and
at exactly twice the frequency of the transmitted pilot signal. Switching between monaural and stereo
operation is accomplished automatically by the presence of the pilot signal.
Low–impedance emitter–follower outputs and an internal voltage regulator for increased stability
make the NTE743 suitable for both line–operated and automotive applications. It is designed to oper-
ate over a wide supply–voltage range and will function with supplies as low as 9V.
Features:
D Internal Temperature Compensation
D Single–Adjustment Tuning
D Automatic Stereo/Mono Switching
D Stereo Indicator Lamp Driver
D 70dB SCA Rejection
D Operating Voltage– 9 to 16V
D Low Harmonic Distortion
Absolute Maximum Ratings:
Supply Voltage, VCC
Continous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +16V
15s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +22V
Lamp Supply Voltage, VLAMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +22V
Lamp Current, ILAMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150mA
Output Current, I4 or I5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10mA
Package Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 670mW
Derate Above 70°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.3mW/°C
Operating Temperature Range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +85°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65° to +150°C









No Preview Available !

NTE743 Даташит, Описание, Даташиты
Electrical Characteristics:
(TA = +25°C, VCC = +12V, Composite Input = 300mVrms (L = R, Pilot OFF), Pilot Level = 30mVrms,
fm = 400Hz or 1KHz, unless otherwise indicated)
Characteristics
Test Conditions
Input Impedance
Pin2
Output Impedance
Pin4 or Pin5
Audio Voltage Gain
Desired Channel
Stereo Channel Separation
Monaural Channel Balance
fm = 100Hz
fm = 400Hz
fm = 10kHz
Pilot Level = 0V
Total Harmonic Distortion
Multiplex Level = 600mV
Ultrasonic Frequency Rejection 19kHz
38kHz
SCA Rejection
67KHz, Note 1
Stereo Switch Level
Pilot Only, Lamp On
Pilot Only, Lamp Off
VCO Tuning Resistance
Pin15, Note 2
VCO Frequency Drift
Stereo Lamp Hysteresis
20°C < TA < +25°C
+25°C < TA < +70°C
Lamp Off to Lamp On
Capture Range
Permissable Tuning Error
Output Voltage Shift
Stereo to Mono Operation
Lamp Output Current
Short Circuit, Lamp On
Lamp Off
Lamp Driver Terminal Voltage ILAMP = 50mA
Supply Current
Lamp Off
Power Supply Rejection
200Hz, 200mVrms
Min Typ Max Unit
2 353
k
50
0.7 1.0 1.4 V
30
dB
30 40
dB
30
dB
0.1 1.5 dB
0.4 1.5 %
25 35
dB
25 40
dB
70
dB
14 25 mVrms
2.0 7.0 mVrms
20 23 26 k
±0.5 ±2.0 %
±0.5 ±2.0 %
3.0 6.0
dB
4.0
%
±30
mV
50 100 mA
1.0 100 mA
1.3 2.0 V
20 40 mA
40
dB
Note 1. Measured with a stereo composite signal of 80% stereo, 10% pilot, and 10% SCA.
Note 2. Total resistance from Pin15 to GND, to set reference frequency at Pin11 to 19kHz ±10Hz









No Preview Available !

NTE743 Даташит, Описание, Даташиты
Pin Connection Diagram
Composite Input 1
Audio Amp Output
Left Load &
DeEmphasis
Left Output
2
3
4
Right Output
Right Load &
DeEmphasis
Lamp Driver
5
6
7
GND 8
16 VCC
15 VCO Control
14 Loop Filter
13 Loop Filter
12 Phase Det Input
11 Pilot Monitor
10 Threshold Filter
9 Threshold Filter
16
1
.785 (19.9)
Max
.245
(6.22)
Min
.100 (2.54)
.700 (17.7)
9
.260 (6.6) Max
8
.200 (5.08)
Max
.300
(7.62)










Скачать PDF:

[ NTE743.PDF Даташит ]

Номер в каталогеОписаниеПроизводители
NTE7400(NTE74xx) Transistor LogicNTE Electronics
NTE Electronics
NTE7401(NTE74xx) Transistor LogicNTE Electronics
NTE Electronics
NTE7404TTL-Hex InverterNTE
NTE
NTE7406Hex Inverter Buffer / DriverNTE Electronics
NTE Electronics

Номер в каталоге Описание Производители
TL431

100 мА, регулируемый прецизионный шунтирующий регулятор

Unisonic Technologies
Unisonic Technologies
IRF840

8 А, 500 В, N-канальный МОП-транзистор

Vishay
Vishay
LM317

Линейный стабилизатор напряжения, 1,5 А

STMicroelectronics
STMicroelectronics

DataSheet26.com    |    2020    |

  Контакты    |    Поиск