Features DC - 125 MHz / 250 Mbps low jitter, low skew, low power operation Conforms to TIA/EIA-899 M-LVDS Standard Controlled transition times (2 ns typ) minimize reflections 8 kV ESD on M-LVDS pins protects adjoining components Flow-through pinout simplifies PCB layout Industrial operating temperature range (−40°C to +85°C) Available in a space saving SOIC-16 package Description The DS91M047 is a high-speed quad M-LVDS line driver designed for driving clock or data signals to up to four multipoint networks. M-LVDS (Multipoint LVDS) is a new family of bus interface devices based on LVDS technology specifically designed for multipoint and multidrop cable and backplane applications. It differs from standard LVDS in providing increased drive current to handle double terminations that are required in multi-point applications. Controlled transition times minimize reflections that are common in multipoint configurations due to unterminated stubs. The DS91M047 accepts LVTTL/LVCMOS input levels and translates them to M-LVDS signal levels with transition times of greater than 1 ns. The device provides the DE and ^DE inputs that are ANDed together and control the TRI-STATE outputs. The DE and ^DE inputs are common to all four drivers. The DS91M047 has a flow-through pinout for easy PCB layout. The DS91M047 provides a new alternative for high speed multipoint interface applications. It is packaged in a space saving SOIC-16 package. Applications Multidrop / Multipoint clock and data distribution High-Speed, Low Power, Short-Reach alternative to TIA/EIA-485/422 Clock distribution in AdvancedTCA (ATCA) and MicroTCA (μTCA, uTCA) backplanes

Also Recommended DS91M040▲ Quad M-LVDS Transceiver

Typical Application click for larger image	Connection Diagram click for larger image

Parameters / Values	DS91M047	DS91M040
PHY Type	Line Driver	Transceiver
Family	M-LVDS	M-LVDS
Channels	4 Channels	4 Channels
Max Data Rate	250 Mbps	250 Mbps
Input Compatibility	LVCMOS	LVTTL/MLVDS
Output Compatibility	MLVDS	LVTTL/MLVDS
Power Consumption_	215 mW	330 mW
Special Features	8kV ESD	Type 1 or 2 RX
SupplyVoltage	3.3 Volt	3.3 Volt
JTAG1149.1	No	No
Temperature Min	-40 deg C	-40 deg C
Temperature Max	85 deg C	85 deg C
Automotive	No
Function	Driver	Transceiver

Datasheets

Title		Size	Date	Other Language
	DS91M047 125 MHz Quad M-LVDS Line Driver	359 Kbytes	9-Nov-09

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
DS91M047TMA/NOPB DS91M047TMA RoHS Status	SOIC NARROW	Full production Lead Time: 6 weeks	Distributor Region Qty ARROW Worldwide 111 DIGI-KEY Worldwide 6 FARNELL Europe and Asia 207 MOUSER Worldwide 144 TAYLOR Americas 111	$2.81 each at 1K+ pcs	rail of 48
DS91M047TMAX/NOPB DS91M047TMAX RoHS Status	SOIC NARROW	Full production Lead Time: 6 weeks	Distributor Region Qty DIGI-KEY Worldwide 0	$2.81 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 DS91M047.

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 DS91M047 is located at RoHS Status.

Part Number(s) (NSID)	Description	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
DS91M047EVK/NOPB	DS91M047 Documentation	Preliminary Lead Free (RoHS)	Distributor Region Qty DIGI-KEY Worldwide 0 MOUSER Worldwide 1	$195.00 each	1
Overview: The DS91M047EVK is an evaluation board design for demonstration of all features and functions of the DS91M047. The board enables users to examine performance and all functions of the DS91M047 as a standalone device. The DS91M047 is a high-speed quad M-LVDS differential driver designed for multipoint applications with multiple drivers or receivers. The device conforms to TIA/EIA-899 standard. It utilizes M-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
DS91M047TMA/NOPB DS91M047TMA	139.49 140	SOIC NARROW	16	1 1	260 235	Detail	Download	ibis file	NSUZXYTTE# DS91M047 TMA
DS91M047TMAX/NOPB DS91M047TMAX	139.49 140	SOIC NARROW	16	1 1	260 235	Detail	Download	ibis file	NSUZXYTTE# DS91M047 TMA

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 DS91M047.

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 DS91M047 is located at RoHS Status.

CAD Symbols and Models Download DS91M047 CAD Symbols

Models ibis file

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
DS91M047TMA	CMOS7	0	21301	0	0	1584000	3	449464325
DS91M047TMAX	CMOS7	0	21301	0	0	1584000	3	449464325

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 DS91M047.

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 DS91M047 is located at RoHS Status.