NTE1492
Integrated Circuit
TV Video IF Amp
Features:
D Particularly useful in B/W TV’s with bipolar tuners
D Low external parts count
D Designed to operate at VCC down to 6.5V
D Video output level stabilized, independent of supply voltage and ambient temperature
Functions:
D Picture IF Amplifier
D Video Detector
D AGC Detector
D Noise Canceller
D Forward AGC
D Sync. Separator
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Supply Voltage (Note 1), VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V
Max. Input Voltage, VINmax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Vp−p
Video Output Current, I11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3mA
Max. Applicable Voltage
Pins 3 & 4, V3, V4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VCC
Pin 6, V6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.3V
Power Dissipation (TA = 60°C), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 850mW
Operating Ambient Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −20° to +65°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −55° to +150°C
Note 1. Value at t ≤ 60sec. min.
Electrical Characteristics: (TA = +25°C unless otherwise specified)
Parameter
Input Sensitivity
Symbol
Vi(sens)
Test Conditions
Min
Typ
Max
Unit
37
42
47
dBμ
Vin = 10mVrms, m = 87.5%
0.95
1.21
1.47
Vp−p
m = 87.5%
Video Output Voltage
Vout
Min. RF AGC Voltage
V3min
Vin = 0
1.6
1.8
2.0
V
Max. RF AGC Voltage
V3max
Pin 4 to GND
6.0
7.0
8.0
V
Sync. Separated Output
V11
Vertical Sync. Pulse
9.0
10.3
−
V
Video Band Width
GW
Vout = {f = 6MHz}/Vout{f = 100kHz}
−13
−6
−1
dB
Sync. Tip Voltage
Vsync
Vin = 10mVrms
4.64
5.14
5.64
V
33
41
53
mA
Supply Current
ICC
Vin = 0
Pin Connection Diagram
IF Input
1
16
IF Input
DC Feedback
2
15
DC Feedback
RF AGC Output
3
14
Sync Sep Input
RF AGC Input
4
13
Sync Sep Output
AGC Det Output
5
12
VCC
IF AGC Output
6
11
Video Output
GND
7
10
Reference Voltage
Carrier Filter
8
9
16
Carrier Filter
9
.260 (6.6) Max
1
8
.785 (19.9)
Max
.300
(7.62)
.200 (5.08)
Max
.245
(6.22)
Min
.100 (2.54)
.700 (17.7)