Pending
Video Filter Amplifier Enables SD Video Playback from Portable Devices to Any TV
Maxim has introduced the MAX9519, the industry's smallest, lowest pin-count video filter amplifier for standard-definition video connections from portable devices to TVs. Packaged in a 1mm x 1mm, 4-bump UCSP, this device features Maxim's proprietary SmartSleep technology, which reduces current consumption to 1microamp in shutdown mode and eliminates the need for external shutdown circuitry. The MAX9519 is ideal for low-power, space-constrained portable applications-such as cell phones, digital still/video cameras, and portable media players-that require SD video output to a 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.
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