NTE NTE7120 Datasheet

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 (V

D Input: 1V

Output: V

(Typical)

P–P

(Maximum)

P–P

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.

= 12V, ICC = 77mA)

CC

Applications:

D CRT Display

Absolute Maximum Ratings:

Supply Voltage, V
Power Dissipation, P
Operating Temperature Range, T
Storage Temperature Range, T

CC

D

opr

stg

Recommended Operating Conditions:

Parameter Symbol Test Conditions Min Typ Max Unit

Supply Voltage Range V
Rated Supply Voltage V

CC
CC

14V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1670mW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–20° to +65°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–40° to +125°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

11.0 – 12.5 V
0 12 – V

Pin Connection Diagram

N.C.

VCC (R)

R In

R Sub Contrast

V

CC

(B)

V

CC

B In

B Sub Contrast

B Peaking

1
2
3
4
5R Peaking
6
7G In
8G Sub Contrast
9G Peaking 22

10
11
12 19
13
14Contrast 17
15Clamp Pulse 16

30
29
28
27
26 GND (R)
25
24
23

21
20

18

White Peak
R Out

R Hold
R Sub BRT

G Out
G Hold
G Sub BRT
GND (G)
B Out
B Hold
B Sub Bright
GND (B)
Blanking Pulse
Brightness

30

1

1.444 (36.7)

.100 ( 2.54)

1.400 (35.5)

16

15

.150 (3.8)

.118

(3.0)

Min

.512 (13.0)

.600

(15.24)