
NTE855
Integrated Circuit
Color TV Video Monitor
Description:
The NTE855 is an integrated circuit in a 14–Lead DIP type package used to generate an RF TV signal
from baseband color–difference and luminance signals. This device contains a chroma subcarrier
oscillator, a lead and lag network, a quasi–quadrature suppressed carrier DSB chroma modulator,
an RF oscillator and modulator, and an LSTTL compatible clock driver with adjustable duty cycle. The
NTE855 may be used as a general–purpose modulator with a variety of video signal generating de-
vices such as video games, test equipment, video tape recorders, etc.
Features:
Single 5V Supply Operation for NMOS and TTL Compatibility
Minimal External Components
Sound Carrier Addition Capability
Modulates Channel 3 or 4 Carrier with Encoded Video Signal
Low Power Dissipation
Linear Chroma Modulators for High Versatility
Composite Video Signal Generation Capability
GND–Referenced Video Prevents Overmodulation
Absolute Maximum Ratings:
(T
A
= +25
°
C unless otherwise specified)
Supply Voltage, V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Dissipation, P
D
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Derate Above 25
°
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Junction Temperature, T
J
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Ambient Temperature Range, T
opr
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Temperature Range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8V
1.25W
13mW/
°
C
+150
°
C
0
°
to +70
°
C
–65
°
to +150
°
C
Recommended Operating Conditions:
Supply Voltage, V
CC
Luma Input Voltage, Sync Tip
Luma Input Voltage, Peak White
Color Reference Voltage
Color A, B Input Voltage range
5V
1V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
350mV
1.5V
1V to 2V