Ultralow Power SD Video Filter with Load Detection
The ADA4431-1 operates on single supplies as low as 2.5 V while providing the dynamic range required by the most demanding video systems. The on-board charge pump provides a virtual negative supply, allowing the video signal to be dc-coupled and the black level to be set to ground, while the sync passes cleanly at 300 mV below ground.
When operating with the charge pump off, the ADA4431-1 provides a dc offset to keep the sync tip approximately 100 mV above ground. In addition, the part features SAG correction, which permits the use of smaller capacitors in applications with ac-coupled outputs.
The ADA4431-1 is packaged in a low profile 16-lead LFCSP and operates in the industrial temperature range of −40°C to +85°C.Applications
- Portable media players
- Portable gaming consoles
- Cell phones
- Digital still cameras
- Portable DVD players
- Portable video cameras
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At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
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