參數(shù)資料
型號： NTE1827
廠商： NTE Electronics, Inc.
英文描述： 3/8 Pin 100mA Adjustable Positive Regulator 8-TSSOP 0 to 125
中文描述： 集成電路資料表格
文件頁數(shù)： 1/2頁
文件大小： 26K
代理商： 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:
VIF section: VIF AMP, Video Det, Peak IF AGC, B/W Noise Canceller, RF AGC, AFT, Video
Mute.
SIF section: SIF Limiter Amp, FM Det, SND Mute.
Features:
High–Gain VIF Amp Requiring No Preamp
Non–Adjusting can be Attained by using a Ceramic Discriminator because of FM Detection
being Quadrature Detection.
Possible to Mute Video, Sound for VCR.
Small–Sized Package.
Minimum Number of External Parts Required.
Operates from 9V Supply Voltage
Operating Characteristics:
(T
A
= +25
°
C, V
CC
= 12V, f
p
= 58.75MHz, fs = 54.25MHz (VIF))
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Total Circuit Current
I
17
V
IOH
V
IOL
V
11
V
i
GR
44
55
73
mA
Maximum RF AGC Voltage
8.5
9.0
9.5
V
Minimum RF AGC Voltage
–
–
0.5
V
Quiescent Video Output Voltage
4.5
6.5
7.0
V
Input Sensitivity
fm = 400Hz 40%AM, V
o
= 0.8V
p–p
fm = 15kHz 78%AM, V
o
=
±
1dB
fm =15kHz 78%AM, V
O
=
±
1dB
V
i
= 10mV
rms
, fm = 15kHz 78%AM
Vi = 10mV
rms
CW
Vi = 100mV
rms
, fm = 15kHz 78%
AM
30
36
42
dBu
AGC Range
60
68
–
dB
Maximum Allowable Input
Vimax
100
–
–
mVrms
Video Output Amplitude
V
o(16)
S/N
1.9
2.2
2.5
V
pp
dB
Output S/N
47
55
–
Carrier Leakage
CL
50
57
–
dB
Maximum AFT Voltage
V
IIH
V
i
= 10mV
rms
SWEEP
11
11.5
–
V
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