Date: 10/03/2009

Video filter amplifier for portable devices to link video to TV

Maxim Integrated Products has launched video filter amplifier MAX9519 for standard-definition (SD) video connections from portable devices to TVs. MAX9519 is packaged in a small 1mm x 1mm, 4-bump UCSP. This device consumes a low 1micro Amps in shutdown mode and doesn't require 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 goes into sleep mode without any external intervention from a host processor or microcontroller. 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, the circuitry inside the chip disables the filter and output amplifier, reducing power consumption to an ultra-low 1µA.
MAX9519 achieves 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.

The MAX9519 operates from a 2.7V to 3.6V supply and is fully specified over the -40°C to +125°C temperature range. Prices start at $0.34 (1000-up, FOB USA).