Features • SMPTE 424M, SMPTE 292M, SMPTE 344M, and SMPTE 259M compliant • Data rates to 2.97 Gbps • Supports DVB-ASI at 270 Mbps • Cable detect on output • Loss of signal detect at input • Output driver power down control • Typical power consumption: 130 mW in SD mode and 155 mW in HD mode • Power save mode typical power consumption: 4 mW • Single 3.3V supply operation • Differential input • 75Ω differential output • Selectable slew rate • Industrial temperature range: −40°C to +85°C • 16–pin LLP package • Footprint compatible with the LMH0302 Description The LMH0303 3 Gbps HD/SD SDI Cable Driver with Cable Detect is designed for use in SMPTE 424M, SMPTE 292M, SMPTE 344M, and SMPTE 259M serial digital video applications. The LMH0303 drives 75Ω transmission lines (Belden 1694A, Belden 8281, or equivalent) at data rates up to 2.97 Gbps. The LMH0303 includes intelligent sensing capabilities to improve system diagnostics. The cable detect feature senses near-end termination to determine if a cable is correctly attached to the output BNC. Input loss of signal (LOS) detects the presence of a valid signal at the input of the cable driver. These sensing features may be used to alert the user of a system fault and activate a deep power save mode, reducing the cable driver's power consumption to 3 mW. These features are accessible via an SMBus interface. The LMH0303 provides two selectable slew rates for SMPTE 259M and SMPTE 424M / 292M compliance. The output amplitude is adjustable ±10% in 5 mV steps via the SMBus. The LMH0303 is powered from a single 3.3V supply. Power consumption is typically 130 mW in SD mode and 155 mW in HD mode. The LMH0303 is available in a 16-pin LLP package. The LMH0303 interfaces with National's LMH0356 for additional system control and power consumption savings (see ). Applications • SMPTE 424M, SMPTE 292M, SMPTE 344M, and SMPTE 259M serial digital interfaces • Digital video routers and switches • Distribution amplifiers

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

Datasheet

Title		Size	Date	Other Language
	LMH0303 3 Gbps HD/SD SDI Cable Driver with Cable Detect	294 Kbytes	7-Aug-08

Featured Application Notes

Title		Size	Date	Other Language
	AN-1972: Application Note 1972 Board Layout Challenges in Serial Digital Interface	751 Kbytes	13-Sep-09	中文

More Application Notes

Title		Size	Date	Other Language
	AN-1972: Application Note 1972 Board Layout Challenges in Serial Digital Interface	751 Kbytes	13-Sep-09	中文

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LMH0303SQ	BICMOS8B+	0	1152	0	0	743900	5	211083656
LMH0303SQE	BICMOS8B+	0	1152	0	0	743900	5	211083656
LMH0303SQX	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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