Features DC - 3.125 Gbps low jitter, low skew, low power operation Pin selectable transmit pre-emphasis and receive equalization eliminate data dependant jitter Wide Input Common Mode Range allows DC-coupled interface to LVDS, CML and LVPECL drivers Redundant inputs Integrated 100Ω input and output terminations 8 kV ESD on LVDS I/O pins protects adjoining components Small 6 mm x 6 mm LLP-40 space saving package Description The DS25BR204 is a 3.125 Gbps 1:4 LVDS repeater optimized for high-speed signal routing and switching over lossy FR-4 printed circuit board backplanes and balanced cables. Fully differential signal paths ensure exceptional signal integrity and noise immunity. The device has two different LVDS input channels and a select line determines which input is active. Both inputs have programmable equalization providing maximum signal strength. A loss-of-signal ( ^LOS) circuit monitors both input channels and a unique ^LOS pin reports when no signal is detected at that input. Wide input common mode range allows the switch to accept signals with LVDS, CML and LVPECL levels; the output levels are LVDS. A very small package footprint requires a minimal space on the board while the flow-through pinout allows easy board layout. Each differential input and output is internally terminated with a 100Ω resistor to lower device return losses, reduce component count and further minimize board space. Applications Clock and data distribution Clock and data buffering and muxing OC-48 / STM-16 SD/HD/3GHD SDI Routers

Typical Application click for larger image	Block Diagram click for larger image
Typical Performance *click for larger image Jitter as a function of datarate, FR4 & stripline length with Pre-emphasis ON.

Parameters Values Fanout Function 2:4 Control Interface Pin Selectable Max Speed 3.125 Gbps IN SigCon EQ OUT SigCon Pre-E Input Compatibility LVDS/LVPECL/CML Output Compatibility LVDS Power Consumption_ 373 mW PowerWise Rating 4 30 mW/Gbps Special Features LOS, 8kV ESD Temperature Min -40 deg C Temperature Max 85 deg C SupplyVoltage 3.3 Volt JTAG1149.1 No Function 1:n Repeater

Datasheets

Title		Size	Date	Other Language
	DS25BR204 3.125 Gbps 1:4 LVDS Repeater with Transmit Pre-Emphasis and Receive Equalization	395 Kbytes	17-May-11	日本語

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
DS25BR204TSQ/NOPB RoHS Status	LLP	Full production Lead Time: 6 weeks	Distributor Region Qty ARROW Worldwide 250 AVNET-EM Worldwide 250 DIGI-KEY Worldwide 314 FARNELL Europe and Asia 169 MOUSER Worldwide 244 TAYLOR Americas 250	$7.25 each at 1K+ pcs	reel of 250
DS25BR204TSQX/NOPB RoHS Status	LLP	Full production Lead Time: 6 weeks	Distributor Region Qty DIGI-KEY Worldwide 0	$7.25 each at 1K+ pcs	reel of 2500

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 DS25BR204.

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 DS25BR204 is located at RoHS Status.

Part Number(s) (NSID)	Description	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
DS25BR204EVK/NOPB	DS25BR204EVK Documentation	Preliminary Lead Free (RoHS)	Distributor Region Qty DIGI-KEY Worldwide 0	$195.00 each	1
Description: 3.125 Gbps LVDS 1 to 4 Repeater Evaluation Kit

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
DS25BR204TSQ/NOPB	99.658	LLP	40	3	260	Detail	Download	ibis file	NS UZXYTTE# 2BR204SQ
DS25BR204TSQX/NOPB	99.658	LLP	40	3	260	Detail	Download	ibis file	NS UZXYTTE# 2BR204SQ

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 DS25BR204.

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 DS25BR204 is located at RoHS Status.

Design Tools

Title	Size	Date
DS25BR204 Evaluation Board User Guide

CAD Symbols and Models Download DS25BR204 CAD Symbols

Models ibis file

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
DS25BR204TSQ	BICMOS8B+	0	3632	0	0	2762292	2	783807897
DS25BR204TSQX	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 DS25BR204.

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 DS25BR204 is located at RoHS Status.