AMCC rolls SiGe 68 x 69 differential crosspoint switch

Applied Micro Circuits Corp. (San Diego) has released its S2090, which is claimed as the industry's first very high-speed Silicon Germanium (SiGe) 68 x 69 differential crosspoint switch with full broadcast switching capability. Suited for use in high-speed applications such as Dense Wavelength Division Multiplexing (DWDM) switching, digital video, high-speed automatic test equipment (ATE), and datacom or telecom switches, the S2090 can handle NRZ data rates up to 3.2 Gbps per channel with corresponding output rise/fall times of 85 picoseconds. Furthermore, the S2090 also demonstrates and unprecedented 1.8 picoseconds typical Root Mean Square (RMS) jitter accumulation and sports power optimization features, which can achieve typical power dissipation as low as 7 W.

The S2090 features excellent jitter performance that eliminates the need for multiple retiming stages in CLOS switch architectures and offers additional reliability benefits through register read back for remote diagnostics/configuration. The 69th output can be used with AMCC's S3062 as a complete performance monitoring solution with FEC. Furthermore, the serial interface has a 100 MHz clock for fast configuration.

The device features a differential input range of 200 mV to 1400 mV and a programmable differential output swing of 400 mV to 1400 mV for optimal flexibility in driving long and short traces and in reducing power consumption. Power down of the outputs is achieved through software configuration for further power optimization in smaller switch array applications. The high-speed serial inputs to the S2090 are internally biased and have internal 100 W line-to-line terminations, thereby eliminating the need for additional external components. Any of the S2090's 68 differential LVPECL input signal pairs can be connected to any or all of the device's 69 differential CML output signal pairs. Moreover, LVTTL configuration controls are used to simplify the interface to slower speed circuitry, which can be completely reconfigured without interrupting operation.

The S2090 is currently sampling to development partners and is scheduled for production release in Q4 2000. The device, packaged in a compact 32.7 mm x 32.7 mm 624-pin CBGA, is priced at $995 in quantities of 1000.

AMCC, 6290 Sequence Dr., San Diego, CA92121-4358. Phone: (800) 755-2622 or (858) 450-9333. Fax: (858) 450-9885. E-mail: nwpr@amcc.com.

Edited by David Maliniak
Managing Editor, ElectronicsWeb.com