DS64MB201 Datasheet, PDF (2/28 Pages) Texas Instruments – DS64MB201 Dual Lane 2:1/1:2 Mux/Buffer with Equalization and De-Emphasis

DS64MB201
March 1, 2011
Dual Lane 2:1/1:2 Mux/Buffer with Equalization and
De-Emphasis
General Description
The DS64MB201 is a dual lane 2:1 multiplexer and 1:2 switch
or fan-out buffer with signal conditioning suitable for SATA/
SAS and other high-speed bus applications up to 6.4 Gbps.
The device performs both receive equalization and transmit
de-emphasis, allowing maximum flexibility of physical place-
ment 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 pro-
grammable output de-emphasis driver and allows amplitude
voltage levels to be selected from 600 mVp-p to 1200 mVp-p
to suit multiple application scenarios. The signal conditioning
settings are programmable via control pin settings or SMBus
interface.
To enable seamless upgrade from SAS/SATA 3.0 Gbps to 6.0
Gbps data rates without compromising physical reach,
DS64MB201 automatically detects the incoming data rate
and selects the optimal de-emphasis pulse width. The device
detects the out-of-band (OOB) idle and active signals of the
SAS/SATA specification and passes through with minimum
signal distortion.
Features
■ ^{Up to 6.4 Gbps dual lane 2:1 mux, 1:2 switch or fan-out}
■ ^{Adjustable receive equalization up to +33 dB gain}
■ ^{Adjustable transmit de-emphasis up to −12 dB}
■ ^{Adjustable transmit VOD}
■ ^{<0.25 UI of residual DJ at 6.4 Gbps with 40” FR4 trace}
■ ^{SATA/SAS: OOB signal pass-through}
■ ^{Adjustable electrical IDLE detect threshold}
■ ^{Low power}
■ ^{Signal conditioning programmable via pin selection or}
SMBus interface
■ ^{Single 2.5V supply operation}
■ ^{>6 kV HBM ESD Rating}
■ ^{3.3V tolerant SMBus interface}
■ ^{High speed signal flow–thru pinout package: 54-pin LLP}
(10 mm x 5.5 mm)
Applications
■ ^{SATA (1.5, 3.0 and 6 Gbps)}
■ ^{SAS (1.5, 3.0 and 6 Gbps)}
■ ^{XAUI (3.125 Gbps), RXAUI (6.25 Gbps)}
■ ^{sRIO – Serial Rapid I/O}
■ ^{Fibre Channel (4.25 Gbps)}
■ ^{10GBase-CX4, InfiniBand (SDR & DDR)}
■ ^{FR-4 backplane traces}
Typical Application
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