Features • Supports SMPTE 424M, SMPTE 292M, and SMPTE 259M (C) serial digital video standards • Supports 270 Mbps, 1.483 Gbps, 1.485 Gbps, 2.967 Gbps, and 2.97 Gbps serial data rate operation • Supports DVB-ASI at 270 Mbps • Single 3.3V supply operation • 370 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 • Manual or automatic 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 • 20-pin e-TSSOP or 24-pin LLP package • Industrial temperature range: -40°C to +85°C • Footprint compatible with the LMH0046 and LMH0026 (e-TSSOP package) Description The LMH0346 3 Gbps HD/SD SDI Reclocker retimes serial digital video data conforming to the SMPTE 424M, SMPTE 292M, and SMPTE 259M (C) standards. The LMH0346 operates at serial data rates of 270 Mbps, 1.483 Gbps, 1.485 Gbps, 2.967 Gbps, and 2.97 Gbps. The LMH0346 supports DVB-ASI operation at 270 Mbps. The LMH0346 automatically detects the incoming data rate and adjusts itself to retime the incoming data to suppress accumulated jitter. The LMH0346 recovers the serial data-rate clock and optionally provides it as an output. The LMH0346 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 clock outputs are differential LVPECL compatible. The CML serial data and serial clock outputs are suitable for driving 100Ω differentially terminated networks. The control logic inputs and outputs are LVCMOS compatible. The LMH0346 is powered from a single 3.3V supply. Power dissipation is typically 370 mW. The device is available in two space–saving packages: a 6.5 X 4.4 mm 20-pin e-TSSOP and an even more space–efficient 5 X 4 mm 24-pin LLP package. Applications • SDTV/HDTV and 3 Gbps serial digital video interfaces for: • Digital video routers and switchers • Digital video processing and editing equipment • DVB-ASI equipment • Video standards and format converters

Also Recommended LMH0303▲ Also See LMH0303 Triple-rate SDI Cable Driver With Cable Detection LMH0356▲ Also See LMH0356 Triple-rate SDI Reclocker With 4:1 Mux And FR4 EQ LMH0384▲ Also See LMH0384 Triple-rate SDI Extended Reach Equalizer Typical Application MY BRIEFCASE                                       Click any "Briefcase" icon to add an item

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

Datasheet

Title		Size	Date	Other Language
	LMH0346 3 Gbps HD/SD SDI Reclocker with Dual Differential Outputs	361 Kbytes	9-Nov-09

Featured Application Notes

Title		Size	Date	Other Language
	AN-1977: Application Note 1977 LMH0346 Customization with SMBus	287 Kbytes	9-Jul-09
	AN-1983: Application Note 1983 LMH0356 Customization with SMBus	300 Kbytes	9-Jul-09
	AN-2004: Application Note 2004 Replacing the CLC016 Reclocker with the LMH0026	154 Kbytes	13-Oct-09

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
	AN-1971: Application Note 1971 Triple Rate SDI IP FPGA Resource Utilization on the SDXILEVK/AES-EXP-SDI-G Reference Design	195 Kbytes	6-May-09
	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

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LMH0346MH	BICMOS8B+	0	1152	0	0	743900	5	211083656
LMH0346MHX	BICMOS8B+	0	1152	0	0	743900	5	211083656
LMH0346SQ	BICMOS8B+	0	1152	0	0	743900	5	211083656
LMH0346SQE	BICMOS8B+	0	1152	0	0	743900	5	211083656
LMH0346SQX	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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