AD723: 2.7 V to 5.5 V RGB-to-NTSC/PAL Encoder with Load Detect and Input Termination Switch
The AD723 is a 2.7V-5V RGB-to-NTSC/PAL Video Encoder with load detection and input termination capability, packaged in a 28-lead TSSOP. This device converts analog (RGB) Red, Green, and Blue color ...More
AD723: 2.7 V to 5.5 V RGB-to-NTSC/PAL Encoder with Load Detect and Input Termination Switch
Product Description
The AD723 is a 2.7V-5V RGB-to-NTSC/PAL Video Encoder with load detection and input termination capability, packaged in a 28-lead TSSOP. This device converts analog (RGB) Red, Green, and Blue color component signals into luminance and chrominance signals (Y/C) and composite video (CV) for display on an NTSC or PAL television or monitor.
An optional luminance trap (YTRAP) provides a means of reducing cross color artifacts due to sub-carrier frequency information in the Y signal.
A Design-In Kits is available for this product and can be ordered using the following product number: AD723-EVAL
Features
- Current Mode Output Drivers:
To deliver a full swing video signal from a supply voltage down as low as 2.7V. - Load Check/TV presence Detection:
Self-power down of unused outputs (either composite video or S video) reduces total power consumption. TV presence reported for plug-and-play capability.
- Triple RGB Input Termination Switch:
Addresses application issues arising from varying load conditions without the need for external buffer or degradation of RGB monitor's input signal. - DC coupled outputs:
Eliminates large and costly output capacitors (typ. 220uF) and enables the load check feature.
Diagrams
- Enlarge
- Symbols and Footprints
Functional Block Diagram for AD723
2.7 V to 5.5 V RGB-to-NTSC/PAL Encoder with Load Detect and Input Termination Switch
Functional Block Diagram for AD723
| Part# | # DAC | Resolution (Bits) | Input Data Resolution | Max Oversampling (MHz) | Standard Definition | Prog Scan | HDTV | Component RGB/YPbPr | CVBS/S-Video | Price* (1000-4999) |
|---|---|---|---|---|---|---|---|---|---|---|
| AD723 | n/a | n/a | - | - | X | - | - | RGB only | X | $3.76 |
| AD724 | n/a | n/a | - | - | X | - | - | RGB only | X | $6.08 |
| AD725 | n/a | n/a | - | - | X | - | - | RGB only | X | $4.56 |
| ADV7170 | 4 | 10 | 8 | 27 | X | - | - | X | X | - |
| ADV7171 | 4 | 10 | 8 | 27 | X | - | - | X | X | $5.40 |
| ADV7172 | 6 | 10 | 8 | 27 | X | - | - | X | X | - |
| ADV7173 | 6 | 10 | 8 | 27 | X | - | - | X | X | $5.67 |
| ADV7194 | 6 | 10 | 10 | 54 | X | X | - | X | X | $20.97 |
| ADV7324 | 6 | 14 | - | - | X | X | X | - | X | - |
| ADV7340 | 6 | 12 | 10 | 297 | X | X | X | X | X | - |
| ADV7341 | 6 | 12 | 10 | 297 | X | X | X | X | X | $14.00 |
| ADV7342 | 6 | 11 | 8 | 297 | X | X | X | X | X | - |
| ADV7343 | 6 | 11 | 8 | 297 | X | X | X | X | X | $7.65 |
| ADV7344 | 6 | 14 | 10 | 297 | X | X | X | X | X | - |
| ADV7390 | 3 | 10 | 8 | 297 | X | X | X | X | X | - |
| ADV7391 | 3 | 10 | 8 | 297 | X | X | X | X | X | $4.00 |
| ADV7392 | 3 | 10 | 10 | 297 | X | X | X | X | X | - |
| ADV7393 | 3 | 10 | 10 | 297 | X | X | X | X | X | $4.35 |
* The pricing listed here is provided only for budgetary purposes as recommended list price in U.S.
Dollars in the United States ex factor per unit for the stated volume. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
** Pricing is currently unavailable. Click on the product number to see the Product Page for additional information.
AD723 Model Options
| Model | Status | Package | Pins | Temp. Range |
Price* (100-499) |
Available | ROHS Compilant | Samples Cart | Purchase Cart |
|---|---|---|---|---|---|---|---|---|---|
| AD723-EVAL | Prodn | Evaluation Boards | - | Comm. | $80.00 | - | N | Contact ADI | Contact ADI |
| AD723ARU | Prodn | 28 ld TSSOP (4.4mm) | 28 | Ind | $4.87 | 07/11/2008 |
N
Material Declaration |
Contact ADI | Add To Cart |
| AD723ARU-REEL | Prodn | 28 ld TSSOP (4.4mm) | 28 | Ind | $4.87 | 07/18/2008 |
N
Material Declaration |
Contact ADI | Add To Cart |
| AD723ARU-REEL7 | Prodn | 28 ld TSSOP (4.4mm) | 28 | Ind | $4.87 | 07/11/2008 |
N
Material Declaration |
Contact ADI | Add To Cart |
| AD723ARUZ | Prodn | 28 ld TSSOP (4.4mm) | 28 | Ind | $4.43 | 07/11/2008 |
Y
Material Declaration |
Add To Cart | Add To Cart |
| AD723ARUZ-REEL | Prodn | 28 ld TSSOP (4.4mm) | 28 | Ind | $4.43 | 07/11/2008 |
Y
Material Declaration |
Contact ADI | Add To Cart |
| AD723ARUZ-REEL7 | Prodn | 28 ld TSSOP (4.4mm) | 28 | Ind | $4.43 | 08/08/2008 |
Y
Material Declaration |
Contact ADI | Add To Cart |
Help
- Pre-Release: The model has not been released to general production, but samples may be available.
- Production: The model is currently being produced, and generally available for purchase and sampling.
- Last Time Buy: The model has been scheduled for obsolescence, but may still be purchased for a limited time.
- Obsolete: The specific part is obsolete and no longer available. Other models listed in the table may still be available (if they have a status that is not obsolete).
For detailed drawings and chemical composition please consult our Package Site
- Commercial: 0 to +70 degrees Celsius
- Military : -55 to +125 degrees Celsius
- Industrial: Temperature ranges may vary by model. Please consult the datasheet for more information.
- Automotive: -40 to +125 degrees Celsius
The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

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