Features Supports SMPTE 259M (C) serial digital video standard Supports 270 Mbps serial data rate operation Supports DVB-ASI at 270 Mbps Single 3.3V supply operation 330 mW typical power consumption Two differential, reclocked outputs Choice of second reclocked output or low-jitter, differential, data-rate clock output Single 27 MHz external crystal or reference clock input Lock Detect indicator output Output mute function for data and clock Auto/Manual reclocker bypass Differential LVPECL compatible serial data inputs and outputs LVCMOS control inputs and indicator outputs 20-Pin e-TSSOP package Industrial temperature range: -40°C to +85°C Footprint compatible with the LMH0046 and LMH0346 Description The LMH0026 SD SDI Reclocker retimes serial digital video data conforming to the SMPTE 259M (C) standard. The LMH0026 operates at the serial data rate of 270 Mbps and also supports DVB-ASI operation at 270 Mbps. The LMH0026 retimes the incoming data to suppress accumulated jitter. The LMH0026 recovers the serial data-rate clock and optionally provides it as an output. The LMH0026 has two differential serial data outputs; the second output may be selected as a low-jitter, data-rate clock output. Controls and indicators are: serial clock or second serial data output select, SD indicator output, lock detect output, auto/manual data bypass, and output mute. The serial data inputs, outputs, and serial data-rate clock outputs are differential LVPECL compatible. The CML serial data and serial data-rate clock outputs are suitable for driving 100Ω differentially terminated networks. The control logic inputs and outputs are LVCMOS compatible. The LMH0026 is powered from a single 3.3V supply. Power dissipation is typically 330 mW. The device is housed in a 20-pin e-TSSOP package. Applications SDTV serial digital video interfaces for: Digital video routers and switchers Digital video processing and editing equipment DVB-ASI equipment Video standards and format converters

Typical Application

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

Datasheets

Title		Size	Date	Other Language
	LMH0026 SD SDI Reclocker with Dual Differential Outputs	302 Kbytes	6-Oct-09

Application Notes

Title		Size	Date	Other Language
	AN-2002: Application Note 2002 Replacing the CLC014 Adaptive Cable Equalizer with the LMH0074	158 Kbytes	22-Sep-09
	AN-2003: Application Note 2003 Replacing the CLC012 Adaptive Cable Equalizer with the LMH0074	160 Kbytes	6-Oct-09
	AN-2004: Application Note 2004 Replacing the CLC016 Reclocker with the LMH0026	154 Kbytes	13-Oct-09
	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
	Reference Clock Loop Through Application	App Note	2009-01-16
	Broadcast Video Owner's Manual	Design Guide	2006-11-17

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
LMH0026MH/NOPB LMH0026MH RoHS Status	TSSOP EXP PAD	Full production Lead Time: 6 weeks	Distributor Region Qty AVNET-EM Worldwide 259 DIGI-KEY Worldwide 1872 FARNELL Europe and Asia 71 KEIKONG Asia Pacific 438 MOUSER Worldwide 73	$12.10 each at 1K+ pcs	rail of 73
LMH0026MHX/NOPB LMH0026MHX RoHS Status	TSSOP EXP PAD	Full production Lead Time: 6 weeks	Distributor Region Qty DIGI-KEY Worldwide 0	$12.10 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 LMH0026.

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 LMH0026 is located at RoHS Status.

Part Number(s) (NSID)	Weight (milligrams)	Type	Pins	MSL Rating	Peak Reflow	RoHS Status	CAD Symbols	Models	Package Marking Format
LMH0026MH/NOPB LMH0026MH	73.06 73.591	TSSOP EXP PAD	20	3 3	260 260	Detail	Download	N/A	NSUZXYTT L026
LMH0026MHX/NOPB LMH0026MHX	73.061 73.591	TSSOP EXP PAD	20	3 3	260 260	Detail	Download	N/A	NSUZXYTT L026

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 LMH0026.

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 LMH0026 is located at RoHS Status.

CAD Symbols and Models Download LMH0026 CAD Symbols

Models N/A

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LMH0026MH	BICMOS8B+	0	3632	0	0	2762292	2	783807897
LMH0026MHX	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 LMH0026.

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 LMH0026 is located at RoHS Status.