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NTE7120
Integrated Circuit
3 Channel Video Amp for
High Resolution Color TV
Description:
The NTE7120 is a semiconductor integrated circuit in a 30–Lead DIP type package that has a built–in
3–channel amplifier with 50MHz band. Every channel is provided with a broad–band amplifier, main/
sub contrast control, main/sub luminance (brightness) control, peaking, blanking, and peak limiter
functions. Accordingly, this device is designed for use in high–resolution color display monitors.
Features:
D The employment of a new bi–polar wafer process makes it possible to reduce power dissipation,
and 3 channels can be incorporated in this amplifier (VCC = 12V, ICC = 77mA)
D Input: 1VP–P (Typical)
Output: VP–P (Maximum)
Frequency Band: 50MHz
D Main and sub contrast and luminance controls are provided; the main control can change contrast
and luminance at the same time for 3 channels, and the sub control can change them independently
for each channel.
D The DC feedback circuit built in the IC can produce a stable DC level at the IC output pins.
Applications:
D CRT Display
Absolute Maximum Ratings:
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14V
Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1670mW
Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +65°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +125°C
Recommended Operating Conditions:
Parameter
Symbol
Supply Voltage Range
Rated Supply Voltage
VCC
VCC
Test Conditions
Min Typ Max Unit
11.0 – 12.5 V
0 12 – V

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Pin Connection Diagram
N.C. 1
VCC (R) 2
R In 3
R Sub Contrast 4
R Peaking 5
VCC 6
G In 7
G Sub Contrast 8
G Peaking 9
VCC (B) 10
B In 11
B Sub Contrast 12
B Peaking 13
Contrast 14
Clamp Pulse 15
30 White Peak
29 R Out
28 R Hold
27 R Sub BRT
26 GND (R)
25 G Out
24 G Hold
23 G Sub BRT
22 GND (G)
21 B Out
20 B Hold
19 B Sub Bright
18 GND (B)
17 Blanking Pulse
16 Brightness
30 16
1
1.444 (36.7)
.100 ( 2.54)
1.400 (35.5)
15
.150 (3.8)
.512 (13.0)
.118
(3.0)
Min
.600
(15.24)