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
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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.
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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)
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