VSC8222

The VSC8222 and VSC8223 are high performance, multi-rate clock and data recovery ICs that support SONET/SDH systems operating at OC-48 (STM-16), OC-12 (STM-4), OC-3 (STM- 1), Fibre Channel (1.0625 Gbps and 2.125 Gbps), Gigabit Ethernet (1.25 Gbps and 2.5 Gbps), and FEC data rates. High speed input and output signals are terminated on-chip to maintain the highest degree of signal integrity possible. The devices output a differential bit clock and differential retimed data.

Two selectable, externally supplied reference clock inputs support the Phase Lock Loop (PLL) operation and are used to maintain a lock condition when the high-speed data is missing at the input. The PLL has four different Loop bandwidth settings, allowing the designer to adjust the jitter transfer and tolerance attributes of the device. The PLL can be bypassed to accommodate rates not supported by the PLL.

The VSC8222 and VSC8223 require a 2.5 V supply and are available
in a 7x7x1.4mm 48-pin, thermally enhanced PQFP package.