SATA III drivers have adaptive equalization

The PS8521A and PS8521B SATA III bidirectional repeater/redriver chips are said to be the first such ICs to incorporate adaptive equalization, which significantly improves performance. The devices support 1.5-, 3-, and 6-Gbit/s data rates, as well as out-of-band signaling.

The PS8521A is also presented as the first SATA III device using a power-saving 1.5-V supply voltage, while the B version uses the traditional 3.3 V. The ICs transition into sleep mode when no traffic is present on the SATA bus and become active with less than 10-ns latency. The chips feature adaptive receiver equalization and output pre-emphasis and come in a 4 x 4-mm TQFN20 package. ($1.50 ea/volume qty — available 3rd qtr.)

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