SIF. NTE1827 Datasheet

NTE1827 SIF. Datasheet pdf. Equivalent

Part NTE1827
Description Integrated Circuit VIF & SIF
Feature NTE1827 Integrated Circuit VIF & SIF Circuit for TV/VCR Description: The NTE1827 is an IC containing.
Manufacture NTE
Datasheet
Download NTE1827 Datasheet




NTE1827
NTE1827
Integrated Circuit
VIF & SIF Circuit for TV/VCR
Description:
The NTE1827 is an IC containing the VIF section and SIF section on a single chip in the 20–Lead DIP
package. The use of the small–sized package serves to make VCR tuner units smaller.
Functions:
D VIF section: VIF AMP, Video Det, Peak IF AGC, B/W Noise Canceller, RF AGC, AFT, Video
Mute.
D SIF section: SIF Limiter Amp, FM Det, SND Mute.
Features:
D High–Gain VIF Amp Requiring No Preamp
D Non–Adjusting can be Attained by using a Ceramic Discriminator because of FM Detection
being Quadrature Detection.
D Possible to Mute Video, Sound for VCR.
D Small–Sized Package.
D Minimum Number of External Parts Required.
D Operates from 9V Supply Voltage
Operating Characteristics: (TA = +25°C, VCC = 12V, fp = 58.75MHz, fs = 54.25MHz (VIF))
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Total Circuit Current
Maximum RF AGC Voltage
Minimum RF AGC Voltage
Quiescent Video Output Voltage
Input Sensitivity
AGC Range
Maximum Allowable Input
Video Output Amplitude
Output S/N
Carrier Leakage
I17
44 55 73
mA
VIOH
8.5 9.0 9.5
V
VIOL
– – 0.5
V
V11
4.5 6.5 7.0
V
Vi fm = 400Hz 40%AM, Vo = 0.8Vp–p 30 36 42
dBu
GR fm = 15kHz 78%AM, Vo = ±1dB
60 68 –
dB
Vimax fm =15kHz 78%AM, VO = ±1dB
100 –
– mVrms
Vo(16) Vi = 10mVrms, fm = 15kHz 78%AM 1.9 2.2 2.5
Vpp
S/N Vi = 10mVrms CW
47 55 –
dB
CL Vi = 100mVrms, fm = 15kHz 78%
AM
50 57 –
dB
Maximum AFT Voltage
VIIH Vi = 10mVrms SWEEP
11 11.5 –
V



NTE1827
Operating Characteristics (Cont’d): (TA = +25°C, VCC = 12V, fp = 58.75MHz, fs = 54.25MHz (VIF))
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Minimum AFT Voltage
AFT Detection Sensitivity
VIIL Vi = 10mVrms SWEEP
SF Vi = 10mVrms SWEEP
0.4 1.0
V
50 88 mV/kHz
White Noise Threshold Level
VWTH Vi = 10mVrms SWEEP
6.4 6.8 7.2
V
White Noise Clamp Level
Black Noise Threshold Level
Black Noise Clamp Level
SIF Output Signal Voltage
VWCL
VBTH
VBCL
VOS(16)
Vi = 10mVrms SWEEP
Vi = 10mVrms SWEEP
Vi = 10mVrms SWEEP
P/S = 20dB
4.2 4.6 5.0
V
1.9 2.2 2.5
V
3.8 4.2 4.6
V
70 130 210 mVrms
Frequency Characteristic
fc 3dB
5 7 MHz
Differential Gain
Differential Phase
Input Resistance
DG Vi =10mVrsm 87.5% VIDEOMOD
––4
DP Vi = 10mVrms 87.5% VIDEOMOD – – 3
ri 1.5
%
deg
kohm
Input Capacitance
ci
3.5
pF
SIF Limiting Voltage
Vilim 3dB
200 400 µVrms
Detection Output Voltage
VO(3) Vi = 100mVrms, fm = 400Hz,
f = ±25kHz
450 650 850 mVrms
Total Harmonic Distortion
THD(3) Vi = 100mVrms, fm = 400Hz, f =
±25kHz
0.5 1.0
%
AM Rejection
AMR Vi = 100mVrms, fm = 400Hz,
f = ± 25kHz, 30%AM
50 60
dB
Pin Connection Diagram
FM Coil or
Ceramic Discriminator
1
FM Coil or
Ceramic Discriminator
2
Audio Output 3
IF AGC Filter 4
Bypass 5
VIF Input 6
VIF Input 7
Bypass 8
RF AGC VR 9
RF AGC Output 10
20 Bypass
19 SIF Input
18 GND
17 VCC
16 Video Output
15 AFT Coil
14 LLD Coil
13 LLD Coil
12 AFT Coil
11 AFT Output
20 11
.280 (7.12) Max
1 10
.995 (25.3) Max
.280
(7.1)
.300
(7.62)
.100 (2.54) .125 (3.17) Min
.385 (9.8)







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