Switch is cool for networks

National Semiconductor has unveiled what it claims is the industry’s first LVDS-compliant crosspoint switch with a data rate of 2.5 Gigabits per second.

National Semiconductor has unveiled what it claims is the industry’s first LVDS-compliant crosspoint switch with a data rate of 2.5 Gigabits per second (Gbps).

The four input, four output crosspoint switch, dubbed the DS90CP04, consumes 575 mW and occupies half the board area compared to competing switches on the market, according to the company.

It is suited for multiple-port line cards in ‘carrier grade’ voice and data networks as well as Gigabit Ethernet and digital video applications.

Data paths of the DS90CP04 are fully differential from input to output for low EMI. The non-blocking architecture allows connections of any input to any output. The device’s switch matrix consists of four differential 4:1 multiplexors. Each output channel connects to one of the four inputs common to all multiplexors and is capable of operating at 2.5 Gbps and even at 3.125 Gbps depending on loading and required signal integrity.

The device’s common mode input range is rail to rail and its temperature range is from -40 to +85 degrees Fahrenheit. The DS90CP04 is manufactured on the company’s advanced CMOS process technology.

Packaged in a leadless leadframe package (LLP)-32, the device is priced at $12 in quantities of 1,000.