SIF. NTE1728 Datasheet

NTE1728 SIF. Datasheet pdf. Equivalent

Part NTE1728
Description Integrated Circuit VIF & SIF
Feature NTE1728 Integrated Circuit VIF & SIF Circuit for VCR Description: The NTE1728 is an integrated circu.
Manufacture NTE
Datasheet
Download NTE1728 Datasheet




NTE1728
NTE1728
Integrated Circuit
VIF & SIF Circuit for VCR
Description:
The NTE1728 is an integrated circuit in a 30–Lead DIP type package containing the VIF section and
SIF on a single chip. Since this device is capable of performing video detection and sound detection
independently or simultaneously, it can be applied to various sets from popular type to high–grade
type according to the designer’s policy.
Features:
D High–Gain VIF Amp Requiring No Preamp
D High AGC Speed
D Provides Wide–Band Detection Characteristics and Meets Sound MPX Demodulation Requirements
because of FM Detection being Quadrature Detection.
D Possible to use Sound REC Pin (Pin2), AUX Pin (Pin3)
D Possible to Mute Video, Sound for VCR
D Pin7 GND: Muting of both Video and Sound
D Pin29 GND: Muting of Sound Only
Functions:
D VIF Section: VIF Amp Video Det, Peak IF AGC, B/W Noise–Canceller, RF AGC, AFT, SIF DET
D SIF Section: SIF Limiter Amp, FM Det, DC ATT, AF Driver
Operating Characteristics: (TA = +25°C, VCC = 12V, fp = 58.75MHz, fs = 54.25MHz (VIF),
fo = 4.5MHz (SIF) unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
VIH Section
Total Circuit Current
Maximum RF AGC Voltage
Minimum RF AGC Voltage
Quiescent Video Output Voltage
Quiescent AFT Output
Input Sensitivity
AGC Range
I23 + I24
VH13H
V13L
V22
V17
Vi
GR
DC
DC
DC
DC
DC
fm = 400Hz 40% AM, VO = 0.8Vpp
fm = 15kHz 78% AM, VO = ±1dB
59 74 98
8.5 8.9 9.2
– 0 0.5
5.6 6.1 6.6
4.5 6.5 7.5
30 36 42
60 74 –
mA
V
V
V
V
dBµ
dB



NTE1728
Operating Characteristics (Cont’d): (TA = +25°C, VCC = 12V, fp = 58.75MHz, fs = 54.25MHz
(VIF), fo = 4.5MHz (SIF) unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
VIH Section (Cont’d)
Maximum Allowable Input
Video Output Amplitude
Output S/N
Carrier Leakage
Maximum AFT Voltage
Minimum AFT Voltage
AFT Detection Sensitivity
White Noise Threshold Level
Black Noise Threshold Level
Black Noise Clamp Level
SIF Output Signal Voltage
Frequency Characteristic
Differential Gain
Differential Phase
Input Resistance
Input Capacitance
SIF Section
Vimax
VO(22)
S/N
CL
V17H
V17L
Sf
VWTH
VBTH
VBCL
VO(25)
fo
DG
DP
Ri
Ci
fm = 15kHz 78% AM, VO = ± 1dB
Vi = 10mVrms, fm = 15kHz 78% AM
Vi = 10mVrms, CW
Vi = 100mVrms, fm = 15kHz 78% AM
Vi = 10mVrms, SWEEP
Vi = 10mVrms, SWEEP
Vi = 10mVrms, SWEEP
Vi = 10mVrms, SWEEP
Vi = 10mVrms, SWEEP
Vi = 10mVrms, SWEEP
P/S = 20dB
3dB
Vi = 10mVrms 87.5, VIDEOMOD
Vi + 10mVrms 87.5%, VIDEOMOD
Vi = 10mVrms 87.5,%, VIDEOMOD
1.9 2.2 2.5
48 54
Vpp
dB
50 57
dB
11.0 11.5 12.0 V
0 0.4 1.0
V
70 100 140 mV/kHz
6.4 6.8 7.2
V
1.9 2.2 2.5
V
3.8 4.2 4.6
V
40 60 100 mVrms
6 8 MHz
4 10 %
3 6 deg
1.0 1.5 2.0 k
3.5 7.0
pF
SIF Limiting Voltage
Detection Output Voltage
Distortion
AM Rejection
Vilim 3dB
200 400 µVrms
VO(2) Vi = 100mVrms, fm = 400Hz, f = ±25kHz 450 680 850 mVrms
THD(2) Vi = 100mVrms, fm = 400Hz, f = ±25kHz 0.5 1.0
%
AMR Vi = 100mVrms, fm = 400Hz, f = ±25kHz 50
30%
60
dB
DCVR Maximum Attenuation
AF Amp Gain
AF Amp Output Voltage
ATT
GAF
VO(5)
Vi = 200mVrms, f = 400Hz
Vi = 100mVrms, f = 400Hz
VO(5) THD = 10%, f = 400Hz
70 80
18 20 22
34
dB
dB
Vrms







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