Detalles del producto

Function Sync separator Number of outputs 5 Core supply voltage (V) 3.3, 5 Output supply voltage (V) 3.3, 5 Input type CMOS Output type CMOS Operating temperature range (°C) -40 to 85 Features Video sync separator Rating Catalog
Function Sync separator Number of outputs 5 Core supply voltage (V) 3.3, 5 Output supply voltage (V) 3.3, 5 Input type CMOS Output type CMOS Operating temperature range (°C) -40 to 85 Features Video sync separator Rating Catalog
VSSOP (DGS) 10 14.7 mm² 3 x 4.9
  • 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

All trademarks are the property of their respective owners.

  • 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

All trademarks are the property of their respective owners.

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.

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.

Descargar Ver vídeo con transcripción Video

Documentación técnica

star =Principal documentación para este producto seleccionada por TI
No se encontraron resultados. Borre su búsqueda y vuelva a intentarlo.
Ver todo 5
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

Diseño y desarrollo

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.

Placa de evaluación

LMH1980MMEVAL — Placa de evaluación para LMH1980

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.

Guía del usuario: PDF
Herramienta de simulación

PSPICE-FOR-TI — PSpice® para herramienta de diseño y simulación de TI

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
VSSOP (DGS) 10 Ultra Librarian

Pedidos y calidad

Información incluida:
  • RoHS
  • REACH
  • Marcado del dispositivo
  • Acabado de plomo/material de la bola
  • Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
Información incluida:
  • Lugar de fabricación
  • Lugar de ensamblaje

Los productos recomendados pueden tener parámetros, módulos de evaluación o diseños de referencia relacionados con este producto de TI.

Soporte y capacitación

Foros de TI E2E™ con asistencia técnica de los ingenieros de TI

El contenido lo proporcionan “tal como está” TI y los colaboradores de la comunidad y no constituye especificaciones de TI. Consulte los términos de uso.

Si tiene preguntas sobre la calidad, el paquete o el pedido de productos de TI, consulte el soporte de TI. ​​​​​​​​​​​​​​

Videos