Auto-Detecting SD/HD/PC Video Sync Separator

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 40C to +85C.
By National Semiconductor Corporation
Part Manufacturer Description Datasheet Samples
LMH1980MMX/NOPB Texas Instruments Auto-Detecting SD/HD/PC Video Sync Separator 10-VSSOP -40 to 85
LMH1980MM/NOPB Texas Instruments Auto-Detecting SD/HD/PC Video Sync Separator 10-VSSOP -40 to 85
LMH1980 's PackagesLMH1980 's pdf datasheet
LMH1980MM SOIC
LMH1980MMX SOIC




LMH1980 Pinout will be updated soon..., now you can download the pdf datasheet to check the pinouts !
LMH1980 circuits will be updated soon..., now you can download the pdf datasheet to check the circuits!

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