NTE879 Datasheet, PDF (1/3 Pages) NTE Electronics – Integrated Circuit RGB to PAL/NTSC Encoder for Color TV

NTE879
Integrated Circuit
RGB to PAL/NTSC Encoder for Color TV
Description:
The NTE879 is an integrated circuit in a 20–Lead DIP type package used to generate a composite
TV signal from baseband red, blue, green, and sync inputs. This device has color subcarrier oscillator,
voltage controlled 90° phase shifter, two DSB suppressed carrier chroma modulators, RGB input ma-
trices, and blanking level clamps. It can be operated with very few external parts, but has the pin–outs
for a fully implemented, top quality composite signal. It is ideal for encoding signals from color camer-
as and graphic generators.
Features:
D Reference Oscillator Self–Contained or Externally Driven
D Nominal 90° ±5° Axes are Optionally Trimmable
D Simple PAL/NTSC Switch
D Luminance and Chroma Channels can accept Delay Line/Bandpass Elements or Direct Con-
nection
D Provides DC Reference to Permit Direct Drive to RF Modulator
Absolute Maximum Ratings:
Supply Voltage, V_CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V
8.2Vdc Regulator Output Current, I_REG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10mA
Power Dissipation, P_D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.25W
Derate Above 25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10mW/°C
Junction Temperature, T_J . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150°C
Operating Temperature Range, T_A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0° to +70°C
Storage Temperature Range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65° to +150°C
Recommended Operating Conditions:
Supply Voltage, V_CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 ±2V
Sync Tip Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 to +1.0V
Sync, Blanking Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +1.7 to +8.2V
Reg, Green, Blue Inputs (Saturated) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1V_P–P