NTE846
Integrated Circuit
TV Video Modulator
Description:
The NTE846 is designed to interface color difference, audio, and luminance signals to the antenna
terminals of a TV receiver. It consists of a sound subcarrier oscillator, chroma subcarrier oscillator,
quatrature chroma modulators, and RF oscillators and modulators for two low鈥揤HF channels.
The NTE846 allows video information from VTR鈥檚 test equipment, games, or similar sources to be
displayed on black and white or color TV receivers.
Features:
D
DC Channel Switching
D
Excellent Oscillator Stability
D
12V to 18V Supply Operation
D
Low Intermodulation Products
D
5V
p鈥損
Chroma Reference Signal
D
May Be Used to Encode Composite Video
Absolute Maximum Ratings:
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19V
(V
16
鈥揤
15
) Max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
鹵5V
(V
14
鈥揤
10
) Max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7V
(V
14
鈥揤
11
) Max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7V
Power Dissipation Package (Note 1), P
D
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1390mW
Chroma Osc Current I
17
Max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10mA
Operating Temperature Range, T
opr
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0擄 to 150擄C
Storage Temperature Range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?5擄 to +150擄C
Lead Temperature (During Soldering, 10 seconds), T
L
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +300擄C
Note 1. For operation in ambient temperatures above 25擄C, the device must be derated based on
a 150擄C maximum junction temperature and a thermal resistance of 90擄C/W junction to am-
bient.
1
2
3
