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DS64BR401

National Semiconductor Corporation
Part Number DS64BR401
Manufacturer National Semiconductor Corporation
Description Quad Bi-Directional Transceiver
Published Jul 7, 2009
Detailed Description DS64BR401 Quad Bi-directional Transceiver with Equalization and De-Emphasis www.DataSheet4U.com June 25, 2009 DS64BR4...
Datasheet PDF File DS64BR401 PDF File

DS64BR401
DS64BR401

Overview
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 ...


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