Features 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) <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) 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 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. 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

typ application

Typical Application *click for larger image typ application	Block Diagram *click for larger image detail view 1 of 8

Parameters Values Channels 8 Channels Max Speed 6.4 Gbps Input Compatibility CML Output Compatibility CML Power Consumption_ 758 mW Special Features SATA / SAS Repeater SupplyVoltage 2.5 Volt Temperature Min -10 deg C Temperature Max 85 deg C JTAG1149.1 No Function Equalizer PowerWise No Equalization Pin or SMBus Total Throughput 51200 Mbps Protocol Infiniband, FC, SAS/SATA, Gen. Purpose, CPRI

Datasheets

Title		Size	Date	Other Language
	DS64BR401 Quad Bi-Directional Repeater with Equalization and De-Emphasis	1990 Kbytes	29-Oct-10

Other Technical Documents

Title		Type	Date
	Driving High-Speed Signals in Data Center Servers and Storage Area Networks	Signal Path Designer	2009-09-24

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
DS64BR401SQ/NOPB RoHS Status	LLP	Full production Lead Time: 6 weeks	Distributor Region Qty DIGI-KEY Worldwide 0	$7.95 each at 1K+ pcs	reel of 2000
DS64BR401SQE/NOPB RoHS Status	LLP	Full production Lead Time: 6 weeks	Distributor Region Qty ARROW Worldwide 450 AVNET-EM Worldwide 225 DIGI-KEY Worldwide 1030 FARNELL Europe and Asia 245 MOUSER Worldwide 218 NEWARK Americas 205 TAYLOR Americas 450	$7.95 each at 1K+ pcs	reel of 250

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for DS64BR401.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for DS64BR401 is located at RoHS Status.

Part Number(s) (NSID)	Description	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
DS64BR401EVK/NOPB	SATA/SAS MiniSAS4X Cable Extender Demo Kit	Preliminary Lead Free (RoHS)	Distributor Region Qty DIGI-KEY Worldwide 0 FARNELL Europe and Asia 2 MOUSER Worldwide 1 NEWARK Americas 2	$495.00 each	1
Description: The DS64BR401EVK - miniSAS4X cable extender demonstration kit provides a complete cable extension solution using National`s DS64BR401 - Quad Bi-directional Cable/Backplane Extender with Equalization and De-emphasis. MiniSAS4X right angle I-PASS Molex receptacle connectors are used as the input and the output connections for SATA/SAS disk drive storage application. Adaptor board which provides connection from mini SAS4X (26-pin external) to mini SAS4Xi (36-pin internal) is provided to allow easy straight forward connection to existing hardware. 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 Gbps / 3.0 Gbps / 6.0 Gbps) SAS (3.0 Gbps / 6.0 Gbps) Contents: End User License Agreement DS64BR401EVK User Guide Rev.1.7 DS64BR401 Datasheet DS64BR401 MiniSAS4X Demo Board REV.2 MiniSAS4X Connector Adaptor Board (EXT to INT) REV.2

National Semiconductor follows the provisions of the Product Stewardship Guide for Customers (CSP-9-111C1) and Banned Substances and Materials of Interest Specification (CSP-9-111S2) for regulatory environmental compliance. Details may be found at: www.national.com/en/packaging/greennopb.html. Lead free products are RoHS compliant.

Lead Free product status is available through the search tool located here

Part Number(s) (NSID)	Weight (milligrams)	Type	Pins	MSL Rating	Peak Reflow	RoHS Status	CAD Symbols	Models	Package Marking Format
DS64BR401SQ/NOPB	141.38	LLP	54	2	260	Detail	Download	N/A	NS UZXYTTE# DS64BR401 SQ
DS64BR401SQE/NOPB	141.38	LLP	54	2	260	Detail	Download	N/A	NS UZXYTTE# DS64BR401 SQ

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for DS64BR401.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for DS64BR401 is located at RoHS Status.

Design Tools

Title	Size	Date
DS64BR401EVK Evaluation Board User Guide

CAD Symbols and Models Download DS64BR401 CAD Symbols

Models N/A

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
DS64BR401SQ	BICMOS8B+	0	3632	0	0	2762292	2	783807897
DS64BR401SQE	BICMOS8B+	0	3632	0	0	2762292	2	783807897

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

For more information on Reliability Metrics, please click here.

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for DS64BR401.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for DS64BR401 is located at RoHS Status.

DS64BR401 15-Meter SATA SAS Cable Extension Demo Loading video... 12.5 Gbps Repeater/Retimer Family Overview Loading video... DS110DF410 Advanced Low-Power Retimer with DFE Demo Loading video...

DS64BR401 15-Meter SATA SAS Cable Extension Demo Date: 2009-07-02 Length: 0:01:43 12.5 Gbps Repeater/Retimer Family Overview Date: 2012-01-19 Length: 00:04:30 DS110DF410 Advanced Low-Power Retimer with DFE Demo Date: 2012-01-19 Length: 00:02:49