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AD723 - 2.7 V to 5.5 V RGB-to-NTSC/PAL Encoder with Load Detect and Input Termination Switch

This page provides the datasheet information for the AD723, a member of the AD7 2.7 V to 5.5 V RGB-to-NTSC/PAL Encoder with Load Detect and Input Termination Switch family.

Datasheet Summary

Description

The AD723 is a low cost RGB-to-NTSC/PAL encoder that converts analog red, green, and blue color component signals into their corresponding luminance and chrominance signals for display on an NTSC or PAL television.

Features

  • Low Cost, Fully Integrated Solution for NTSC/PAL Composite and Y/C (S-Video) Outputs Current Output Drives 75 ⍀ Loads DC-Coupled: Supports TV Load Detect No Large AC-Coupling Capacitors at Output Self-Power-Down of Unloaded Output Drivers Triple Switch to Enable RGB Termination Integrated Delay Line and Auto-Tuned Filters Y-Trap to Eliminate Cross Color Artifacts 3 V Supply Operation: Low Power < 100 mW: Composite Active (Typical) < 150 mW: S-Video Active (Typical).

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Datasheet preview – AD723

Datasheet Details

Part number AD723
Manufacturer Analog Devices
File Size Direct Link
Description 2.7 V to 5.5 V RGB-to-NTSC/PAL Encoder with Load Detect and Input Termination Switch
Datasheet download datasheet AD723 Datasheet
Additional preview pages of the AD723 datasheet.

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Full PDF Text Transcription

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a 2.7 V to 5.5 V RGB-to-NTSC/PAL Encoder with Load Detect and Input Termination Switch AD723 or combined for composite video (CV). All outputs are available separately and optimized for driving 75 Ω loads. Active termination is used for lower power consumption. A smart load detect feature powers down unused outputs and can be used to monitor the continuing presence or absence of an external TV. This enables plug-and-play operation. In addition, a logic controlled triple switch at the input solves the applications problem of differing load conditions when an RGB monitor is disconnected. When an RGB monitor is not present, the R, G, and B terminations are enabled by the user. This solution ensures no loss of video bandwidth when the RGB monitor is in operation.
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