NTE1483
Integrated Circuit
Video IF System
Description:
The NTE1483 is a silicon monolithic integrated circuit in a 22Lead DIP type package designed for
use in the PIF section in color TV receivers. As it contains a separate picture detector and sound IF
detector, this device offers low buzz characteristics. The NTE1483 has all functions including picture
IF amplifier (4
th
), picture lowlevel detector, sound IF detector, AFC detector, IF AGC, RF AGC and
picture amplifier.
Features:
D
Low Buzz Characteristics for Audio Multiplex TV
D
High Input Sensitivity
D
Wide AGC Control Range
D
Contains Differential Mode Input for use with SAW Filter
Absolute Maximum Ratings: (T
A
= +25
C unless otherwise specified)
Supply Voltage (Pin13), V
13
max
15V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pin22 Current, I
22
max
100mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pin14 Current, I
14
max
3mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Dissipation (T
A
+65
C), P
D
900mW
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Temperature Range, T
opr
15
to +65
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Temperature Range, T
stg
40
to +125
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Characteristics: (T
A
= +25
C, V
CC
= 12V, R
A
= 120
, f
p
= 58.75MHz unless otherwise
specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Total Supply Current
I
CC
Zero Carrier
55
70
90
mA
Pin13 Current
I
13
Zero Carrier
20
30
40
mA
Pin22 Curent
I
22
Zero Carrier
35
40
50
mA
Pin22 Voltage
V
22
6.6
7.2
7.6
V
Maximum RF AGC Voltage
V
17H
V
16
= 7V
9.0
9.2
10.0
V
Minimum RF AGC Voltage
V
17L
V
16
= 0
0
0.5
V
Pin11 Voltage
V
11
3.7
4.1
4.7
V
Electrical Characteristics (Cont'd): (T
A
= +25
C, V
CC
= 12V, R
A
= 120
, f
p
= 58.75MHz unless
otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Pin10 Voltage
V
10
5.0
6.5
7.7
V
Maximum AFT Output Voltage
V
10H
V
7
= 4.8V, V
8
= 5.1V
11.0
V
Minimum AFT Output Voltage
V
10L
V
7
= 5.1V, V
8
= 4.8V
1.0
V
Input Sensitivity
v
i(lim)
fm = 400Hz, m = 40%, v
o
= 0.8V
PP
25
32
41
dB
AGC Range
G.R.
fm = 10kHz, m = 40%, v
o
= 0.8V
PP
60
80
dB
Maximum Input Voltage
v
i(Max)
fm = 10kHz, m = 40%, v
o
= 0.8V
PP
100
55
mV
rms
SignaltoNoise Ratio
S/N
fm = 15.75kHz, m = 80%, v
o
= 1.5V
PP
,
v
i
= 10mV
rms
50
dB
SIF Output Voltage
v
o(SIF)
fm = 400Hz, m = 40%, v
i(P)
= 3mV
rms
,
f
s
= 54.25MHz, v
i(s)
= 300
V
rms
12
25
50
mV
rms
Carrier Leak
CL
(DET)
v
i
= 20mV
rms
5
50
mV
rms
Picture Frequency Response
f
C
m = 40%, v
i
= 20mV
rms
5
13
MHz
Differential Gain
DG
f
p
= 58.75MHz, Stair Step, fm = 3.58MHz,
5
%
Differential Phase
DP
m = 85%, 14% Modulated White to Sync
Level, v
o(DET)
= 1.4V
PP
5
deg
AFT Control Sensitivity
S
f
fm = 400Hz, m = 40%, v
o
= 0.8V
PP
50
150
mV/kHz
AFT Band Width
BW
fm = 400Hz, m = 40%, v
o
= 0.8V
PP
0.2
1.1
2.1
MHz
PIF Input Resistance
R
i
1.5
k
PIF Input Capacitance
C
i
3.5
pF
V
CC
1
V
CC
2
Pin Connection Diagram
RF AGC Control
AGC Filter
Video Output
AFT Tuning
AFT Tuning
RF AGC Output
1
2
3
4
Video IF Output
Video IF Output
GND
LLD Input
5
SIF Output
6
AFT
7
Video Det Tuning
8
Video Det Tuning
22
21
20
19
Compensation
Compensation
Video IF Input
18
Video IF Input
17
16
15
Keying Pulse
9
14
10
13
AGC Level Control
11
12
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