Features DC to 2 Gbps low jitter, high noise immunity, low power operation 6 dB of pre-emphasis drives lossy backplanes and cables LVDS/CML/LVPECL compatible input, LVDS output On-chip 100 Ω output termination, optional 100 Ω input termination 15 kV ESD protection on LVDS inputs and outputs Single 3.3V supply Industrial -40 to +85°C temperature range Space saving LLP-32 or TQFP-48 packages Description The DS15BR400/DS15BR401 are four channel LVDS buffer/repeaters capable of datarates of up to 2 Gbps. High speed data paths and flow-through pinout minimize internal device jitter and simplify board layout, while pre-emphasis overcomes ISI jitter effects from lossy backplanes and cables. The differential inputs interface to LVDS, and Bus LVDS signals such as those on National's 10-, 16-, and 18- bit Bus LVDS SerDes, as well as CML and LVPECL. The differential inputs and outputs of the DS15BR400 are internally terminated with 100Ω resistors to improve performance and minimize board space. The DS15BR401 does not have input termination resistors. The repeater function is especially useful for boosting signals for longer distance transmission over lossy cables and backplanes. The DS15BR400/DS15BR401 are powered from a single 3.3V supply and consume 578 mW (typ). They operate over the full -40°C to +85°C industrial temperature range and are available in space saving LLP-32 and TQFP-48 packages. Applications Cable extension applications Signal repeating and buffering Digital routers

Also Recommended DS15BR401▲ Four Channel LVDS Repeaters Without Input Termination Resistors The DS15BR401 does not have integrated input terminations (The DS15BR400 is shown above)

Typical Application *click for larger image The DS15BR401 does not have integrated input terminations (The DS15BR400 is shown above)	Block Diagram *click for larger image
Typical Performance *click for larger image

Parameters / Values	DS15BR400	DS15BR401
Channels	4 Channels	4 Channels
Max Speed	2.0 Gbps	2.0 Gbps
OUT SigCon	Pre-E	Pre-E
Input Compatibility	LVDS/LVPECL/CML	LVDS/LVPECL/CML
Output Compatibility	LVDS	LVDS
Power Consumption_	575 mW	575 mW
PowerWise Rating 4	72 mW/Gbps	72 mW/Gbps
Special Features	on-chip termination	on-chip termination
SupplyVoltage	3.3 Volt	3.3 Volt
Temperature Min	-40 deg C	-40 deg C
Temperature Max	85 deg C	85 deg C
JTAG1149.1	No	No
Function	Buffer	Buffer
Total Throughput	8000 Mbps
Protocol	Gen. Purpose	Gen. Purpose

Datasheets

Title		Size	Date	Other Language
	DS15BR400 4-Channel LVDS Buffer/Repeater with Pre-Emphasis	338 Kbytes	1-Dec-10	日本語

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
DS15BR400TSQ/NOPB DS15BR400TSQ RoHS Status	LLP	Full production Lead Time: 6 weeks	Distributor Region Qty ARROW Worldwide 1000 AVNET-EM Worldwide 1000 DIGI-KEY Worldwide 2274 TAYLOR Americas 1000	$3.90 each at 1K+ pcs	reel of 1000
DS15BR400TSQX/NOPB DS15BR400TSQX RoHS Status	LLP	Full production Lead Time: 6 weeks	Distributor Region Qty DIGI-KEY Worldwide 0	$3.90 each at 1K+ pcs	reel of 4500
DS15BR400TVS/NOPB DS15BR400TVS RoHS Status	TQFP	Full production Lead Time: 6 weeks	Distributor Region Qty ARROW Worldwide 144 DIGI-KEY Worldwide 322 FARNELL Europe and Asia 13 MOUSER Worldwide 250 NEWARK Americas 13 TAYLOR Americas 144	$3.90 each at 1K+ pcs	tray of 250
DS15BR400TVSX/NOPB DS15BR400TVSX RoHS Status	TQFP	Full production Lead Time: 8 weeks	Distributor Region Qty DIGI-KEY Worldwide 0	$3.90 each at 1K+ pcs	reel of 1000

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 DS15BR400.

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 DS15BR400 is located at RoHS Status.

Part Number(s) (NSID)	Description	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
DS15BR400EVK/NOPB	DS15BR400EVK Documentation	Preliminary Lead Free (RoHS)	Distributor Region Qty DIGI-KEY Worldwide 0 MOUSER Worldwide 2	$195.00 each	1
Description: DS15BR400 is a four channel LVDS Buffer/Repeater, featuring pre-emphasis with maximum pre-emphasis gain of approximately 6 dB at 750 MHz. The device has internal 100-ohm resistors on both, the inputs and outputs, to improve performance and minimize board size. It utilizes LVDS technology for low power, high-speed and superior noise immunity.

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
DS15BR400TSQ/NOPB DS15BR400TSQ	60.581 60.793	LLP	32	3 3	260 260	Detail	Download	ibis file	NS UZXYTT 5R400SQ
DS15BR400TSQX/NOPB DS15BR400TSQX	60.581 60.793	LLP	32	3 3	260 260	Detail	Download	N/A	NS UZXYTT 5R400SQ
DS15BR400TVS/NOPB DS15BR400TVS	149.27 150.01	TQFP	48	3 3	260 260	Detail	Download	ibis file	NSUZXYTT DS15BR 400TVS
DS15BR400TVSX/NOPB DS15BR400TVSX	149.27 150.01	TQFP	48	3 3	260 260	Detail	Download	N/A	NSUZXYTT DS15BR 400TVS

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 DS15BR400.

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 DS15BR400 is located at RoHS Status.

Design Tools

Title	Size	Date
Evaluation Kit User Manual

CAD Symbols and Models Download DS15BR400 CAD Symbols

Models ibis file

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
DS15BR400TSQ	CMOS8	1	13725	73	0	1774500	2	503519220
DS15BR400TSQX	CMOS8	1	13725	73	0	1774500	2	503519220
DS15BR400TVS	CMOS8	1	13725	73	0	1774500	2	503519220
DS15BR400TVSX	CMOS8	1	13725	73	0	1774500	2	503519220

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 DS15BR400.

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 DS15BR400 is located at RoHS Status.