Fairchild Semiconductor has released a new family of highly integrated video filter/drivers: the FMS6143, FMS6145 and FMS6146. Featuring fully integrated functionality, these multichannel devices offer video designers an active approach that provides a number of design benefits. Compared to typical passive approaches, the FMS6143, FMS6145 and FMS6146 significantly decrease test and design time, reduce inventory and increase image quality in DVD, LCD, TV, set-top box and other digital consumer products. These integrated video filter/drivers also eliminate the need for multiple discrete components. For example, the 6-channel FMS6146 replaces as many as 80 parts to help designers lower pick-and-place design costs and reduce board space by up to 20 percent in video applications.

"Fairchild's integrated video filter/drivers offer more compact and reliable alternatives over discrete passive filter solutions, opening up new opportunities in high-volume applications," says Ben Takada, Fairchild's application engineering manager for video products.

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The 3-, 5- and 6-channel, fourth-order filter/drivers improve image quality when used to replace discrete products in traditional third-order passive solutions. Compared to passive designs, they provide better inband and stopband filter characteristics that reduce artifacts in video signals and result in higher image quality. By providing 8 MHz cut-off frequency and 48 dB stopband attenuation, these devices meet standard definition (SD) video requirements, while allowing them to be used as anti-aliasing or reconstruction video-out filter drivers. Internal diode clamps and bias circuitry enable the video filter/drivers to accommodate AC- or DC-coupled input signals. The outputs on each device can drive AC- or DC-coupled single (150 Ohms) or dual (75 Ohms) coaxial cable loads, eliminating the need for expensive output coupling capacitors and reducing design cost.

The FMS6143, FMS6145 and FMS6146 are available in SOIC and TSSOP packages. These products are lead-free (Pb-free) and meet or exceed the requirements of the joint IPC/JEDEC standard J-STD-020B and are compliant with the European Union requirements that will take effect in 2005. Available now, the price (each, 1000 count) is $0.50 for FMS6143 (3-channel, SOIC); $0.68 for FMS6145 (5-channel, TSSOP); and $0.76 for FMS6146 (6-channel, TSSOP).