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Cable Technology Feature Article

September 30, 2010

Skyworks Launches CMOS Switch Matrix Devices for DBS and Cable TV Markets

By Nathesh, TMCnet Contributor

Skyworks Solutions, a dealer in high-reliability analog and mixed signal semiconductors, has unveiled a new complementary metal-oxide semiconductor (CMOS) switch matrix devices specifically designed for the direct broadcast satellite (DBS) and cable television markets.

Nowadays in the satellite receiver industry, low-noise block switches are enabling users to receive signals from multiple satellites to a single dish so one household can view hundreds of channels. Skyworks’ switch matrix solutions connect four of the satellite signals to two indoor set-top boxes selectable by the viewer’s channel choice.

The company said its newly released solutions have critical functionalities directly embedded to the CMOS die, which nullifies the need for external components. This in turn will only bring down costs and reduce printed circuit board (PCB) space requirements.

“We are delighted to be expanding their product portfolio with industry-leading solutions for today’s fast-growing satellite and cable television markets, particularly as these markets are expected to achieve double digit growth every year through 2015,” said David Stasey, vice president of analog components at Skyworks, in a statement. “These newest additions to our CMOS switch family are just several solutions within Skyworks’ broad portfolio designed to drive greater network reliability, capacity and efficiency while also reducing size and complexity.”

According to the company, the SKY13327-365LF and the SKY13369-365LF are 0.25-2.15GHz, 4 x 2 millimeter switch matrices that combine a digital decoder with the RF switching network, tone/voltage detect and digital satellite equipment control rejection (DiSEqC) functionality.

Both the SKY13327-365LF and SKY13369-365LF are four-input to two-output switch matrices intended for DBS switching and cable TV/modem applications. Switch states can be selected using tone and voltage signals together with vertical horizontal mirror control inputs. The load detection and DiSEqC rejection are integrated on the switch. The switches are packaged in Skyworks’ Green and restriction of hazardous substances (RoHS)-compliant, leadless plastic packages.

Nathesh is a contributing editor for TMCnet. To read more of Nathesh's articles, please visit his columnist page.

Edited by Tammy Wolf