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MAX7461 - Loss-of-Sync Alarm

General Description

The MAX7461 single-channel loss-of-sync alarm (LOS) provides composite video sync detection in NTSC, PAL, and SECAM standard-definition television (SDTV) systems.

The MAX7461’s advanced detection circuitry delivers robust performance by preventing false lossof-sync alarms due to noise.

Key Features

  • Accepts CVBS, Y, or Any Other Video with Sync MAX7461 Ordering Information PART MAX7461EUK TEMP RANGE -40°C to +85°C.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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19-0553; Rev 0; 5/06 Loss-of-Sync Alarm General Description The MAX7461 single-channel loss-of-sync alarm (LOS) provides composite video sync detection in NTSC, PAL, and SECAM standard-definition television (SDTV) systems. The MAX7461’s advanced detection circuitry delivers robust performance by preventing false lossof-sync alarms due to noise. The device accepts an AC-coupled composite (CVBS), luma (Y), or any other video signal with sync, and outputs a logic-level signal. The open-drain LOS output is low when no sync is detected and high impedance when sync is detected. w w w . D a t a S h e e t 4 U . c o m The device operates from a single +5V supply. The MAX7461 is available in a 5-pin SOT23 package and is specified for operation over the -40°C to +85°C temperature range.