AD723

PRODUCTION

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

Data Sheet (Rev. 0) Product Selection Table

Part Models: 4
1ku List Price: Starting From $4.69

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Overview

Low cost, fully integrated solution for NTSC/PAL
Composite and Y/C (S-video) outputs
Current output drives 75 Ω 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)
<1 µA: power down current

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. Luminance (Y) and Chrominance (C) signals are available individually for S-video, 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.

In PC applications, flicker filter support is provided by the graphics controller, which has direct access to memory. Underscan compensation, necessary for uses other than video or DVD, is supported through choice of RGB output clocks and sync intervals.

An optional luminance trap (YTRAP) provides a means of reducing cross color artifacts due to subcarrier frequency information in the Y signal.

The AD723 is available in a 28-lead TSSOP package and is capable of operation from supplies of 2.7 V to 5.5 V.

Part Models: 4
1ku List Price: Starting From $4.69

Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
AD723ARUZ	28-Lead TSSOP (4.4mm x 9.7mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD723ARUZ-REEL	28-Lead TSSOP (4.4mm x 9.7mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD723ARUZ-REEL7	28-Lead TSSOP (4.4mm x 9.7mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD723WARUZ-RL7	28-Lead TSSOP (4.4mm x 9.7mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Jan 16, 2012 - 11_0244 Halogen Free Material Change for Select TSSOP Products Assembled at Amkor
		PCN11_0244_Form Material_Report Qualification Report Summary
AD723ARUZ	PRODUCTION
AD723ARUZ-REEL	PRODUCTION
AD723ARUZ-REEL7	PRODUCTION
AD723WARUZ-RL7	PRODUCTION