DS64BR401SQ/NOPB

DS64BR401 www.ti.com SNLS304G – JUNE 2009 – REVISED APRIL 2013 DS64BR401 Quad Bi-Directional Repeater with Equalization and De-Emphasis Check for Samples: DS64BR401 FEATURES DESCRIPTION • The DS64BR401 is a quad lane bi-directional signal conditioning repeater for 6.0/3.0/1.5 Gbps SATA/SAS and other high-speed bus applications with data rates up to 6.4 Gbps. The device performs both receive equalization and transmit de-emphasis on each of its 8 channels to compensate for channel loss, allowing maximum flexibility of physical placement within a system. The receiver's continuous time linear equalizer (CTLE) provides a boost of up to +33 dB at 3 GHz and is capable of opening an input eye that is completely closed due to inter-symbol interference (ISI) induced by the interconnect medium. The transmitter features a programmable output deemphasis driver and allows amplitude voltage levels to be selected from 600 mVp-p to 1200 mVp-p to suit multiple application scenarios. This Low Power Differential Signaling (LPDS) output driver is a power efficient implementation that maintains compatibility with AC coupled CML receiver. The programmable settings can be applied via pin settings or SMBus interface. 1 2 • • • • • • • • • • • • • • Quad lane bi-directional repeater up to 6.4 Gbps rate Signal conditioning on input and output for extended reach Adjustable receive equalization up to +33 dB gain Adjustable transmit de-emphasis up to −12 dB Adjustable transmit VOD (600 mVp-p to 1200 mVp-p)