ECG879 RGB to PAL/NTSC Encoder for Color TV ~ 20 Pin DIP (NTE879)

ECG879 RGB to PAL/NTSC Encoder for Color TV ~ 20 Pin DIP (NTE879).

The ECG879 is an integrated circuit in a 20 Pin 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 matrices, 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 cameras and graphic generators.

Features:

• Reference Oscillator Self-Contained or Externally Driven
• Nominal 90 5 Axes are Optionally Trimmable
• Simple PAL/NTSC Switch
• Luminance and Chroma Channels can accept Delay Line/Bandpass Elements or Direct Connection
• Provides DC Reference to Permit Direct Drive to RF Modulator
• Replaces: NTGE879

Absolute Maximum Ratings:

• Supply Voltage, VCC: 15V
• 8.2Vdc Regulator Output Current, IREG: 10mA
• Power Dissipation, PD: 1.25W
• Derate Above 25C: 10mW/C
• Junction Temperature, TJ: +150C
• Operating Temperature Range, TA: 0 to +70C
• Storage Temperature Range, Tstg: -65 to +150C

Recommended Operating Conditions:

• Supply Voltage, VCC: 12 2V
• Sync Tip Level: -0.5 to +1.0V
• Sync, Blanking Level: +1.7 to +8.2V
• Reg, Green, Blue Inputs (Saturated): 1VP-P