A 16 x 16 crosspoint switch IC has been designed and implemented in a
2-mu m GaAs heterojunction bipolar transistor (HBT) technology. The IC
is a strictly nonblocking switch with broadcast capability and asynch
ronous data paths. The IC has fully differential internal circuitry an
d is packaged in a custom high-speed assembly. Test results confirmed
that the IC achieves a 10-Gb/s/channel (or 160-Gb/s aggregate) capacit
y, the highest reported to date for a 16 x 16 crosspoint switch IC.