822

NTE822
Integrated Circuit
Video/Chroma Processor
Description:
The NTE822 is a monolithic silicon integrated circuit that performs the luminance processing functions in color TV receivers. This circuit amplifies chroma signals, provides horizontal and vertical
blanking, and automatically controls contrast, brightness, peaking and black and chroma levels.
Features:
D Automatic Black−Level Control
D Automatic Controls for Contrast and Peaking
D Automatic Color−Level Control
D Horizontal and Vertical Blanking
D Automatic Beam−Current Limiting
D Positive or Negative Vertical Blanking Pulses
D Internal Noise Protection for Automatic Functions
Absolute Maximum Ratings:
DC Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30V
DC Suply Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21mA
Device Dissipation
Up to TA = +25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 750mW
Above TA = +25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Derate Linearly at 11.1 mW/°C
Operating Ambient Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0° to +60°C
Storage Ambient Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −55° to +150°C
Lead Temperature During Soldering (from case for 10 seconds max) . . . . . . . . . . . . . . . . . . . +265°C
Electrical Characteristics: (TA = +25°C, V+ = 24V, unless otherwise specified)
Parameter
Test Conditions
Min
Typ
Max
Unit
Total Supply Current
13
16
19
mA
Reference Bias Level (Pin 7)
−
5.25
−
V
Reference Level (Pin 2) S2 =2
(with 1mA into Pin 1) S3 = 2
−
12.2
−
V
Static Characteristics
Electrical Characteristics (Cont’d): (TA = +25°C, V+ = 24V, unless otherwise specified)
Parameter
Test Conditions
Min
Typ
Max
Unit
Dynamic Characteristics
Max. Video Gain − Read eo
ein = 1Vp−p, f = 100KHz, S5 to Pos. 1
−
13.5
−
dB
Min. Video Gain − Read eo
ein = 1Vp−p, f = 100KHz, S5 to Pos. 2
−
−4.4
−
dB
Relative Freq. Response − Read eo
ein = 1Vp−p, f = 3.58MHz, S5 to Pos. 1
−
−0.2
−
dB
Contrast Gain Reduction − Read eo
ein = 1Vp−p, f = 100kHz, S5 to Pos. 2
−
−17.9
−
dB
Auto−Peaking Level − Read P3 to P13
ein = 1Vp−p, S5 to Pos. 1
−
165
−
mV
ein = 0.5Vp−p, S5 to Pos. 1
−
115
−
mV
ein = 0Vp−p, S5 to Pos. 1
−
0
−
mV
Max. Chroma Out Level − Read P8
(E5 = 5V)
ec = 1Vp−p, f = 3.58MHz S4 off
−
5
−
V
Min. Chroma Out Level − Read P8
(E5 = 5V)
ec = 1Vp−p, f = 3.58MHz S4 on
−
10
−
V
Pin Connection Diagram
Brightness Control
1
16 Horiz Key Pulse
Video Output
2
15 Horiz Pulse Output
Peaking Threshold
3
14 ±Vertical Bank
4
13 Aperture Corrector
Video Output
5
12 Peaked Video Input
Contrast Control
6
11 Video Input
Chroma Input
7
10 GND
Chroma Output
8
9 ALC
VCC
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)