NTE NTE984

NTE984
Integrated Circuit
TV Video IF System
Description:
The NTE984 is a monolithic integrated circuit in a 16–Lead DIP type package designed to perform
IF amplification, video detection, and video–amplifier functions in color and monochrome TV receivers.
Features:
D Improved AGC, Fast Response, Sample and Hold Keyed
D High Gain Wideband IF Amplifiers
D Delayed AGC Output for Tuner
D Gain Reduction with Excellent Stability
D Linear Video Detector
D Video Amplifier
D Low Noise
D Internal Shunt Regulator
D For Color of Monochrome
Absolute Maximum Ratings:
DC Supply Voltage:
Between Pin15 and Pin4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16V
Between 470Ω Connected to Pin12 and Pin14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35V
DC Supply Current:
At Pin15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20mA
At Pin12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30mA
Device Dissipation (TA ≤ +55°C), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 750mW
Derate Linearly Above +55°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.9mW/°C
Operating Ambient Temperature Range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +85°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65° to +150°C
Lead Temperature (During Soldering, 1/16” ±1/32” from case, 10sec max), TL . . . . . . . . . . . +265°C
Electrical Characteristics: (TA = +25°C unless otherwise specified)
Parameter
Symbol
Test Conditions
Note 1
Min
Typ
Max
Unit
12.0
–
14.2
V
Operating Supply Voltage
V15
Supply Current
I15
3
–
15
mA
Shunt Regulator Voltage
V12
10.9
–
13.0
V
Shunt Regulator Current
I12
6
–
20
mA
Tuner AGC High Voltage
V10
18.5
–
21.0
V
Tuner AGC Low Voltage
V10
0.3
–
1.3
V
V12 = 10.5V
AGC Current
I2
Non–Keyed
80
–
500
µA
AGC Peak Current
I2
Keyed Source Current
0.7
–
3.0
mA
Keyed Sink Current
150
–
680
µA
Through 100kΩ connected to Pin1
25
–
35
V
Horizontal Key Input
Video Output High Voltage
V16
At Zero Carrier
7
–
10
V
Video Output Low Voltage
V16
At 30mV Input
0.9
–
2.0
V
Sensitivity Voltage
V16
At 400µV Input
0.9
–
5.0
V
–
–
12
mVrms
0.7
–
1.6
Vrms
35
–
85
mVrms
Noise
Chroma
45.75MHz, 10mV; 42.17MHz, 3mV
AFT Drive
Distortion
50kHz, 80% Modulated,
Sync Tip Equiv. 30mVrms
–
–
10
%
Delay Voltage
Through 15kΩ connected to Pin7,
Note 2
0
–
V15
V
Note 1 V15 Min should be at least 0.6V above Terminal 12 potential. Lower voltage may cause some
“white” compression.
Note 2 Zero voltage corresponds to maximum delay at signal input + 30mV(RMS).
Pin Connection Diagram
Key Pulse Input 1
AGC Filter 2
A1 Input 3
GND 4
Clamp Capacitor 5
A1 Output/A2 Input 6
16 Video Output
15 (+) VS 2
14 Substrate
13 Detector Bias
12 (+) VS 1 Shunt Reg
11 A3 Input and Detector
AGC Delay 7
10 Tuner AGC
IF AGC Bias 8
9 A2 Output
16
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)