Video Filter Amplifier Enables SD Video Playback from Portable Devices to Any TV

The MAX9519 employs SmartSleep technology to intelligently manage power consumption with no external intervention from a host processor or microcontroller. SmartSleep circuitry constantly monitors the video input for a valid video signal and the video output for the presence of a load. The MAX9519 only turns on and enters its full operating mode when it detects both video playback and a live connection to the TV. In shutdown mode, this circuitry disables the filter and output amplifier, reducing power consumption to an ultra-low 1microamp. At 1mm x 1mm, the MAX9519 consumes 30% less board space than competitive active-filter amplifiers, and 50% less space than passive-filter solutions.

Featuring a higher-order filter than competitive devices, the MAX9519 achieves much better attenuation of high-frequency artifacts and noise in the video-output signal. The integrated 5th-order filter features ±1dB passband flatness up to 9MHz and 48.5dB attenuation at 27MHz, thereby ensuring signal integrity in ultra-compact designs.