Features SMPTE 292M, SMPTE 344M and SMPTE 259M compliant Supports DVB-ASI at 270 Mbps Data rates: 125 Mbps to 1.485 Gbps Equalizes up to 200 meters of Belden 1694A at 1.485 Gbps or up to 400 meters of Belden 1694A at 270 Mbps Manual bypass, cable length indicator, and output mute with a programmable threshold Single-ended or differential input 50Ω differential outputs Single 3.3V supply operation 208 mW typical power consumption with 3.3V supply Replaces the GS1524 and GS1524A Description The LMH0034 SMPTE 292M / 259M adaptive cable equalizer is a monolithic integrated circuit for equalizing data transmitted over cable (or any media with similar dispersive loss characteristics). The equalizer operates over a wide range of data rates from 125 Mbps to 1.485 Gbps and supports SMPTE 292M, SMPTE 344M and SMPTE 259M. The LMH0034 implements DC restoration to correctly handle pathological data conditions. DC restoration can be bypassed for low data rate applications. The equalizer is flexible in allowing either single-ended or differential input drive. Additional features include a combined carrier detect and output mute pin which mutes the output when no signal is present. A programmable mute reference is used to mute the output at a selectable level of signal degradation. A cable length indicator is provided to determine the amount of cable being equalized. Applications SMPTE 292M, SMPTE 344M, and SMPTE 259M serial digital interfaces Serial digital data equalization and reception Data recovery equalization

Also Recommended LMH0002▲ HD/SD Serial Digital Cable Driver LMH0030▲ HD/SD Digital Video Serializer W/ FIFOs And Integrated Cable Driver LMH0031▲ HD/SD Digital Video Deserializer & Descrambler Typical Application

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

Parameters / Values	LMH0034	LMH0002	LMH0030	LMH0031
Max Data Rate	1485 Mbps	1485 Mbps	1485 Mbps	1485 Mbps
SupplyVoltage	3.3 Volt	3.3 Volt	3.3 Volt	3.3 Volt
OtherSupply Voltage	Undefined	Undefined	2.5V	2.5V
Cable Length at SD, typ	400 m
Cable Length at HD, typ	200 m
Power Consumption_	208 mW	149 mW	430 mW	650 mW
Rise/Fall Times	100 ps	120 ps	200 ps
Temperature Min	0 deg C	-40 deg C	0 deg C	0 deg C
Temperature Max	85 deg C	85 deg C	70 deg C	70 deg C
Supply Current	63 mA	45 mA	66 mA	47 mA
Output Swing	0.75 Volt	0.8 Volt	0.8 Volt	3.3 Volt
Function	Equalizer	Cable Driver	Serializer	Deserializer

Datasheets

Title		Size	Date	Other Language
	LMH0034 LMH0034 SMPTE 292M / 259M Adaptive Cable Equalizer	295 Kbytes	16-May-11	日本語

Application Notes

Title		Size	Date	Other Language
	AN-1372: Application Note 1372 LMH0034 PCB Layout Techniques	908 Kbytes	31-Jul-06	日本語 中文
	AN-1943: Application Note 1943 Understanding Serial Digital Video Bit Rates	191 Kbytes	22-Apr-09
	AN-2145: Application Note 2145 Power Considerations for SDI Products	558 Kbytes	24-Aug-11
	AN-2146: Application Note 2146 Power Design for SDI and other Noise Sensitive Devices	516 Kbytes	9-Aug-11

Other Technical Documents

Title		Type	Date
	Timing is Everything – The Broadcast Video Signal Path	Signal Path Designer	2007-08-02
	Broadcast Video Owner's Manual	Design Guide	2006-11-17

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
LMH0034MA/NOPB LMH0034MA RoHS Status	SOIC NARROW	Full production Lead Time: 6 weeks	Distributor Region Qty ARROW Worldwide 3 DIGI-KEY Worldwide 125 FARNELL Europe and Asia 29 KEIKONG Asia Pacific 168 MOUSER Worldwide 29 NEWARK Americas 8 TAYLOR Americas 114	$12.40 each at 1K+ pcs	rail of 48
LMH0034MAX/NOPB LMH0034MAX RoHS Status	SOIC NARROW	Full production Lead Time: 12 weeks	Distributor Region Qty DIGI-KEY Worldwide 0	$12.40 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 LMH0034.

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 LMH0034 is located at RoHS Status.

Part Number(s) (NSID)	Description	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
SD034EVK	LMH0034 SMPTE 292M / 259M Adaptive Cable Equalizer	Preliminary	Distributor Region Qty DIGI-KEY Worldwide 0 MOUSER Worldwide 1	$150.00 each	1

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
LMH0034MA/NOPB LMH0034MA	139.49 140	SOIC NARROW	16	1 1	260 235	Detail	Download	N/A	NSUZXYTTE# L034
LMH0034MAX/NOPB LMH0034MAX	139.49 140	SOIC NARROW	16	1 1	260 235	Detail	Download	N/A	NSUZXYTTE# L034

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 LMH0034.

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 LMH0034 is located at RoHS Status.

CAD Symbols and Models Download LMH0034 CAD Symbols

Models N/A

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LMH0034MA	BICMOS8B+	0	3632	0	0	2762292	2	783807897
LMH0034MAX	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 LMH0034.

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 LMH0034 is located at RoHS Status.