Features • Analog video sync separation for NTSC, PAL, 480I/P, 576I/P, 720P, 1080I/P/PsF, and many VESA-compatible timing formats • Composite Video (CVBS), S-Video (Y/C), and Component Video (YPBPR/GBR) and PC Graphics (RGsB) interfaces • SD/PC Bi-level sync & HD tri-level sync compatible • Composite, Horizontal, and Vertical Sync outputs • Burst/Back Porch Timing, Odd/Even Field, and HD Detect Flag outputs • Automatic video format detection • Fixed-level sync slicing for video inputs from 0.5 to 2 VPP • 3.3V to 5V supply operation Description The LMH1980 is an auto-detecting SD/HD/PC video sync separator ideal for use in a wide range of video applications, such as automotive LCD monitors, video capture & editing devices, surveillance & security equipment, and machine vision and inspection systems. The LMH1980 accepts an analog video input signal with either bi-level or tri-level sync and automatically detects the video format, eliminating the need for external RSET resistor adjustment required by other sync separators (e.g.: LM1881). The outputs provide timing signals in CMOS logic, including Composite, Horizontal, and Vertical Syncs, Burst/Back Porch Timing, and Odd/Even Field outputs. The ^HD flag output (pin 5) provides a logic low signal only when a valid HD video input with tri-level sync is detected. The ^HD flag can be used to disable an external switch-controlled SD chroma filter when HD video is detected, or enable it when SD video is detected. For non-standard video with bi-level sync and without vertical serration pulses, a default vertical sync pulse will be output and no horizontal sync pulses will be output during the vertical sync interval. The LMH1980 is available in a space-saving 10-ld. Mini-SO Package (MSOP) and operates over a temperature range of −40°C to +85°C. Applications • Consumer, Professional, Automotive & Industrial Video • Video Capture, Editing, and Processing • Genlock Circuits • Surveillance & Security Video Systems • Set-Top Boxes (STB) & Digital Video Recorders (DVR) • LCD / Plasma Displays and Video Projectors • Machine Vision and Inspection Systems • Video Trigger Oscilloscopes and Waveform Monitors

Also Recommended LMH1981▲ For Lower Jitter, Higher Performance MY BRIEFCASE                                       Click any "Briefcase" icon to add an item

	Connection Diagram click for larger image Pinout

Datasheet

Title		Size	Date	Other Language
	LMH1980 Auto-Detecting SD/HD/PC Video Sync Separator	746 Kbytes	6-Jul-07	日本語

Featured Application Notes

Title		Size	Date	Other Language
	AN-1618: Application Note 1618 LMH1980 Evaluation Board Instruction Manual	674 Kbytes	19-Jul-07	日本語
	AN-1681: Application Note 1681 Design Migration from the LM1881 to the LMH1980	143 Kbytes	2-Aug-07	日本語
	AN-1841: Application Note 1841 LMH1982 Evaluation Board User Guide	913 Kbytes	21-May-08	中文

More Application Notes

Title		Size	Date	Other Language
	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-1893: Application Note 1893 Demonstrating SMPTE-Compliant SDI Output Jitter Using the LMH1982 and Virtex-5 GTP Transmitter	2197 Kbytes	3-Oct-08
	AN-1599: Application Note 1599 LMH1981 Evaluation Board Instruction Manual	503 Kbytes	11-Feb-09	日本語

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LMH1980MM	CMOS7	0	18406	0	0	1089000	4	309006723
LMH1980MMX	CMOS7	0	18406	0	0	1089000	4	309006723

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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