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鈥揕ead DIP
package. The use of the small鈥搒ized 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鈥揋ain VIF Amp Requiring No Preamp
D
Non鈥揂djusting 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鈥揝ized Package.
D
Minimum Number of External Parts Required.
D
Operates from 9V Supply Voltage
Operating Characteristics:
(T
A
= +25擄C, V
CC
= 12V, f
p
= 58.75MHz, fs = 54.25MHz (VIF))
Parameter
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
Maximum AFT Voltage
Symbol
I
17
V
IOH
V
IOL
V
11
V
i
GR
Vimax
V
o(16)
S/N
CL
V
IIH
fm = 400Hz 40%AM, V
o
= 0.8V
p鈥損
fm = 15kHz 78%AM, V
o
=
鹵1dB
fm =15kHz 78%AM, V
O
=
鹵1dB
V
i
= 10mV
rms
, fm = 15kHz 78%AM
Vi = 10mV
rms
CW
Vi = 100mV
rms
, fm = 15kHz 78%
AM
V
i
= 10mV
rms
SWEEP
Test Conditions
Min
44
8.5
鈥?/div>
4.5
30
60
100
1.9
47
50
11
Typ
55
9.0
鈥?/div>
6.5
36
68
鈥?/div>
2.2
55
57
11.5
Max
73
9.5
0.5
7.0
42
鈥?/div>
鈥?/div>
2.5
鈥?/div>
鈥?/div>
鈥?/div>
Unit
mA
V
V
V
dBu
dB
mVrms
V
pp
dB
dB
V
NTE1827 產(chǎn)品屬性
NTE
置換半導(dǎo)體
否
1
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