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DS64BR401 Dataheets PDF



Part Number DS64BR401
Manufacturers National Semiconductor Corporation
Logo National Semiconductor Corporation
Description Quad Bi-Directional Transceiver
Datasheet DS64BR401 DatasheetDS64BR401 Datasheet (PDF)

DS64BR401 Quad Bi-directional Transceiver with Equalization and De-Emphasis www.DataSheet4U.com June 25, 2009 DS64BR401 Quad Bi-Directional Transceiver with Equalization and De-Emphasis General Description The DS64BR401 is a quad lane bi-directional signal conditioning transceiver suitable 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 compe.

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DS64BR401 Quad Bi-directional Transceiver with Equalization and De-Emphasis www.DataSheet4U.com June 25, 2009 DS64BR401 Quad Bi-Directional Transceiver with Equalization and De-Emphasis General Description The DS64BR401 is a quad lane bi-directional signal conditioning transceiver suitable 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 de-emphasis 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. To enable seamless upgrade from SAS/SATA 3.0 Gbps to 6.0 Gbps data rates without compromising physical reach, DS64BR401 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. With a typical power consumption of 200 mW/lane (100 mW/ channel) at 6.4 Gbps, and control to turn-off unused channels, the DS64BR401 is part of National's PowerWise family of energy efficient devices. Features ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ Quad lane bi-directional transceiver 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) <0.25 UI of residual DJ at 6.4 Gbps with 40” FR4 trace Automatic de-emphasis scaling based on rate detect SATA/SAS: OOB signal pass-through, <3 ns (typ) envelope distortion Adjustable electrical IDLE detect threshold Low power (100 mW/channel), per-channel power down Programmable via pin selection or SMBus interface Single supply operation at 2.5V ±5% >6 kV HBM ESD Rating 3.3V LVCMOS input tolerant for 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 4x (SDR & DDR) QSFP active copper cable modules High-speed active cable and FR-4 backplane traces Typical Cable Application 30073081 © 2009 National Semiconductor Corporation 300730 www.national.co.


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