Features DC - 3.125 Gbps low jitter, high noise immunity, low power operation Receive equalization reduces ISI jitter due to media loss Transmit pre-emphasis drives lossy backplanes and cables On-chip 100Ω input and output termination minimizes insertion and return losses, reduces component count and minimizes board space. The DS25BR101 eliminates the on-chip input termination for added design flexibility. 7 kV ESD on LVDS I/O pins protects adjoining components Small 3 mm x 3 mm LLP-8 space saving package Description The DS25BR100 and DS25BR101 are single channel 3.125 Gbps LVDS buffers optimized for high-speed signal transmission over lossy FR-4 printed circuit board backplanes and balanced metallic cables. Fully differential signal paths ensure exceptional signal integrity and noise immunity. The DS25BR100 and DS25BR101 feature transmit pre-emphasis (PE) and receive equalization (EQ), making them ideal for use as a repeater device. Other LVDS devices with similar IO characteristics include the following products. The DS25BR120 features four levels of pre-emphasis for use as an optimized driver device, while the DS25BR110 features four levels of equalization for use as an optimized receiver device. The DS25BR150 is a buffer/repeater with the lowest power consumption and does not feature transmit pre-emphasis nor receive equalization. Wide input common mode range allows the receiver to accept signals with LVDS, CML and LVPECL levels; the output levels are LVDS. A very small package footprint requires minimal space on the board while the flow-through pinout allows easy board layout. On the DS25BR100 the differential input and output is internally terminated with a 100Ω resistor to lower return losses, reduce component count and further minimize board space. For added design flexibility the 100Ω input terminations on the DS25BR101 have been eliminated. This enables a designer to adjust the termination for custom interconnect topologies and layout. Applications Clock and data buffering Metallic cable driving and equalization FR-4 equalization

Also Recommended DS25BR110▲ Additional Levels Of Equalization DS25BR120▲ Additional Levels Of Pre-Emphasis DS25BR150▲ 3.125Gbps LVDS Buffer

Typical Application click for larger image	Block Diagram click for larger image

Parameters / Values	DS25BR100	DS25BR110	DS25BR120	DS25BR150
Channels	1 Channels	1 Channels	1 Channels	1 Channels
Max Speed	3.125 Gbps	3.125 Gbps		3.125 Gbps
IN SigCon	EQ	EQ
OUT SigCon	Pre-E		Pre-E
Input Compatibility	LVDS/LVPECL/CML	LVDS	LVDS/LVPECL/CML	LVDS/LVPECL/CML
Output Compatibility	LVDS	LVDS	LVDS	LVDS
Power Consumption_	115 mW	115 mW	115 mW	90 mW
PowerWise Rating 4	37 mW/Gbps	37 mW/Gbps	37 mW/Gbps	29 mW/Gbps
Special Features	>7kV ESD	7kV ESD	7kV ESD	7kV ESD
SupplyVoltage	3.3 Volt	3.3 Volt	3.3 Volt	3.3 Volt
Temperature Min	-40 deg C	-40 deg C	-40 deg C	-40 deg C
Temperature Max	85 deg C	85 deg C	85 deg C	85 deg C
JTAG1149.1	No	No	No	No
Function	Buffer	Equalizer	Buffer	Buffer
PowerWise	Yes	Yes	Yes	Yes
Total Throughput	3125 Mbps	3125 Mbps	3125 Mbps	3125 Mbps
Protocol	Gen. Purpose	Gen. Purpose	Gen. Purpose	Gen. Purpose

Datasheets

Title		Size	Date	Other Language
	DS25BR100 3.125 Gbps LVDS Buffer with Transmit Pre-Emphasis and Receive Equalization	499 Kbytes	17-May-11	日本語

Application Notes

Title		Size	Date	Other Language
	AN-1957: Application Note 1957 LVDS Signal Conditioners Reduce Data-Dependant Jitter	1049 Kbytes	23-Apr-09
	AN-1898: Application Note 1898 LVDS Repeaters and Crosspoints Extend the Reach of FPD-Link II Interfaces	308 Kbytes	4-Sep-08	中文

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
DS25BR100TSD/NOPB RoHS Status	LLP	Full production Lead Time: 6 weeks	Distributor Region Qty AVNET-EM Worldwide 1000 DIGI-KEY Worldwide 2902 FARNELL Europe and Asia 195 MOUSER Worldwide 460 NEWARK Americas 195	$2.45 each at 1K+ pcs	reel of 1000
DS25BR100TSDX/NOPB RoHS Status	LLP	Full production Lead Time: 6 weeks	Distributor Region Qty DIGI-KEY Worldwide 0	$2.45 each at 1K+ pcs	reel of 4500

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 DS25BR100.

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 DS25BR100 is located at RoHS Status.

Part Number(s) (NSID)	Description	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
DS25BR100EVK/NOPB	DS25BR100EVK Documentation	Preliminary Lead Free (RoHS)	Distributor Region Qty DIGI-KEY Worldwide 0 MOUSER Worldwide 2	$500.00 each	1
Description: 3.125 Gbps LVDS Buffer with pre-emphasis/equalization Contents: Eval Board License agreement Letter with information on downloading users manual

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
DS25BR100TSD/NOPB	20.736	LLP	8	3	260	Detail	N/A	ibis file	ZXYTT 2R100
DS25BR100TSDX/NOPB	20.736	LLP	8	3	260	Detail	N/A	ibis file	ZXYTT 2R100

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 DS25BR100.

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 DS25BR100 is located at RoHS Status.

Design Tools

Title	Size	Date
DS25BR100 Evaluation Board User Guide

CAD Symbols and Models N/A

Models ibis file

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
DS25BR100TSD	BICMOS8B+	0	3632	0	0	2762292	2	783807897
DS25BR100TSDX	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 DS25BR100.

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 DS25BR100 is located at RoHS Status.

PowerWise Products and Metrics -- An Overview Loading video... Top 10 Signaling Challenges Loading video... 12.5 Gbps Repeater/Retimer Family Overview Loading video... DS110DF410 Advanced Low-Power Retimer with DFE Demo Loading video...

PowerWise Products and Metrics -- An Overview Date: 2008-05-11 Length: 00:13:36 Top 10 Signaling Challenges Date: 2009-03-10 Length: 00:40:05 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