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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-lead Mini-SO Package (VSSOP) and operates over a temperature range of −40°C to +85°C.
| Tipo | Título | Fecha | ||
|---|---|---|---|---|
| * | Data sheet | LMH1980 Auto-Detecting SD/HD/PC Video Sync Separator datasheet (Rev. A) | 15 mar 2013 | |
| Application note | LMH1980 Sync Separator Design Considerations in Cable Hot-Plug Applicatio | 27 mar 2016 | ||
| Application note | Migrating From the LM1881 to the LMH1980 (Rev. A) | 03 may 2013 | ||
| EVM User's guide | AN-1618 LMH1980 Evaluation Board Instruction Manual (Rev. B) | 26 abr 2013 | ||
| EVM User's guide | AN-1841 LMH1982 Evaluation Board User Guide (Rev. A) | 26 abr 2013 |
Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.
The LMH1980 Evaluation Board can be used to test the LMH1980 Auto-Detecting SD/HD/PC Video Sync Separator and as a reference for PCB layout design.
| Paquete | Pasadores | Descargar |
|---|---|---|
| VSSOP (DGS) | 10 | Ver opciones |
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