Features • Supports SMPTE 292M and SMPTE 259M (A & C) serial digital video standards • Supports 143 Mbps, 270 Mbps, 1.483 Gbps, and 1.485 Gbps serial data rate operation • Supports DVB-ASI at 270 Mbps • Single 3.3V supply operation • 360 mW typical power consumption • Integrated 4:1 multiplexed input • 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 • Manual rate select input • SD/HD operating rate indicator output • 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 • 48-Pin LLP package • Industrial temperature range: -40°C to +85°C Description The LMH0056 HD/SD SDI Reclocker with 4:1 Input Multiplexer retimes serial digital video data conforming to the SMPTE 292M and SMPTE 259M (A & C) standards. The LMH0056 operates at serial data rates of 143 Mbps, 270 Mbps, 1.483 Gbps and 1.485 Gbps. The LMH0056 supports DVB-ASI operation at 270 Mbps. The LMH0056 includes an integrated 4:1 input multiplexer for selecting one of four input data streams for retiming. The LMH0056 automatically detects the incoming data rate and adjusts itself to retime the incoming data to suppress accumulated jitter. The LMH0056 recovers the serial data-rate clock and optionally provides it as an output. The LMH0056 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, manual rate select input, SD/HD rate 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 LMH0056 is powered from a single 3.3V supply. Power dissipation is typically 360 mW. The device is housed in a 48-pin LLP package. Applications • SDTV/HDTV serial digital video interfaces for: • Digital video routers and switchers • Digital video processing and editing equipment • DVB-ASI equipment • Video standards and format converters

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Datasheets

Title		Size	Date	Other Language
	LMH0056 HD/SD SDI Reclocker with 4:1 Input Multiplexer	327 Kbytes	12-Apr-07	日本語

More Application Notes

Title		Size	Date	Other Language
	AN-1988: Application Note 1988 LMH0340 / LMH0341 SerDes Family LVDS Timing Overview	148 Kbytes	17-Jul-09

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Standard Pack Size
LMH0056SQ/NOPB RoHS Status	LLP	Full production Lead Time: 6 weeks	Distributor Region Qty ARROW Worldwide 250 AVNET-EM Worldwide 165 DIGIKEY Worldwide 418	$20.50 each at 1K+ pcs	reel of 250
LMH0056SQE/NOPB RoHS Status	LLP	Full production Lead Time: 6 weeks	Distributor Region Qty DIGIKEY Worldwide 0	$20.50 each at 1K+ pcs	reel of 250
LMH0056SQX/NOPB RoHS Status	LLP	Full production Lead Time: 8 weeks	Distributor Region Qty DIGIKEY Worldwide 0	$20.50 each at 1K+ pcs	reel of 2500

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/packaging/leadfree.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/quality/green.

National's certificate of product compliance is located at RoHS Status.

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/packaging/leadfree.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/quality/green.

National's certificate of product compliance is located at RoHS Status.

CAD Symbols and Models N/A

Models N/A

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LMH0056SQ	BICMOS8B+	0	1152	0	0	743900	5	211083656
LMH0056SQE	BICMOS8B+	0	1152	0	0	743900	5	211083656
LMH0056SQX	BICMOS8B+	0	1152	0	0	743900	5	211083656

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.

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All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/packaging/leadfree.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/quality/green.

National's certificate of product compliance is located at RoHS Status.