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AD720 Datasheet RGB to NTSC/PAL Encoders

Manufacturer: Analog Devices

Overview: a.

General Description

RGB to NTSC/PAL Encoders AD720/AD721 (subcarrier amplitude and phase) signals in accordance with either NTSC or PAL standards.

These two outputs are also combined to provide a composite video output.

All three outputs are available separately at voltages of twice the standard signal levels as required for driving 75 Ω reverse terminated cables.

Key Features

  • Composite Video Output Chrominance and Luminance (S-Video) Outputs No External Filters or Delay Lines Required Drives 75 Ω Reverse-Terminated Loads Compact 28-Pin PLCC Logic Selectable NTSC or PAL Encoding Modes Automatically Selects Proper Chrominance Filter Cutoff Frequency for Encoding Standard Logic Selectable Encode or Power-Down Mode (AD720 Only) Logic Selectable Encode or Bypass Mode (AD721 Only) Low Power: 200 mW typical.