NTE NTE818

NTE818
Integrated Circuit
TV Luminance Processor
Features:
D Luma/Chroma Tracking
D Automatic Beam Limiter
D DC Restoration
D Luma/Chroma Vertical Blanking
D Single DC Gain Control
D Low External Component Count
Description:
A single DC picture control adjusts the gain of both the low–level video and chroma amplification in
color TV receivers which employ the NTE818Luminance Processor. Automatic brightness limiting
(ABL) and vertical maintaining a constant black level. During the horizontal blanking interval, the
black level is determined by clamping the black–level reference (the “back porch”). This allows for
100% DC restortion.
Absolute Maximum Ratings:
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V
Luma Sink Current, I9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30mA
Package Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 670mW
Derate Above 70°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.3mW/°C
Operating Temperature Range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +85°C
Storage Temperature Range, TS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65° to +150°C
Electrical Characteristics: (TA = +25°C unless otherwise specified)
Position of Test Switches
Test Pin
A
B
C
D
E
F
G
Min
Max
Unit
Supply Current
14
1
4
2
1
5
2
3
15
30
mA
Luma Input Current
15
1
4
2
1
5
2
3
425
570
µA
Luma Output Voltage
13
1
4
2
1
5
2
2
1.8
4.5
V
9
2
2
2
2
3
1
1
5.3
7.5
V
9
2
3
2
2
3
1
1
11.6
13.0
V
9
2
1
2
2
1
1
1
14.1
15.7
V
Luma Blanking Current
9
3
1
2
2
3
1
1
–
1.0
µA
Video Output Short Circuit Current
11
1
4
1
1
5
2
2
5.0
14
mA
Clamped Video Level
12
1
4
2
1
1
1
1
2.5
3.9
V
Clamp Leakage Current
12
1
4
2
1
4
1
1
0
365
nA
Chroma Output Voltage
6
2
4
2
1
5
2
3
7.3
9.1
V
6
3
1
2
2
3
1
1
10.3
11.6
V
Gate Leakage Current
10
1
4
2
1
2
1
1
0
400
nA
Loop Filter Voltage
1
1
4
2
1
2
1
1
5.0
5.8
V
Parameter
Static Characteristics
Electrical Characteristics (Cont’d): (TA = +25°C unless otherwise specified)
Position of Test Switches
Test Pin
A
B
C
D
Minimum
9
1
1
1
2
Mid
9
2
1
1
2
Maximum
9
3
1
1
2
Video Frequency Response
9
3
Limited Video Gain
9
Minimum
Parameter
Dynamic Characteristics
Video Output
F
G
Min
Max
Unit
0.20
0.56
Vrms
0.80
1.50
Vrms
1.50
2.60
Vrms
Test 2/Test 1 (Test A)
5.0
8.5
1
1
2
1.0
2.6
Vrms
3
1
2
2
0.2
0.4
Vrms
6
1
2
1
1
50
150
mVrms
Mid
6
2
2
1
1
260
440
mVrms
Maximum
6
3
2
1
1
400
750
mVrms
Test 4/Test 3 (Test B)
5.0
8.5
2
1
35
150
Test A/Test B
0.85
1.15
Video Gain Ratio
Chroma Output
E
Chroma Gain Ratio
Limited Chroma Gain
6
3
Video/Chroma Gain Ratio
2
(Test 1)
(Test 2)
f = 3.58MHz
(Test 3)
(Test 4)
Pin Connection Diagram
Voltage Reference 1
16 DC Picture Control
Automatic Brightness Limiter 2
ABL or GND 3
15 Luminance Input
14 VCC
Chrominance Input 4
13 Luminance Output
GND 5
12 Clamp
Chrominance Output 6
11 Video Output
Vertical Pulse Input 7
10 Horizontal Pulse Input
Video Peak 8
16
9 Luminance Output
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)
mVrms