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AK4254 - Capacitor-less Video Amp

General Description

The AK4254 is a 2ch Video AMP with 7:2 video switch, input clamp circuit, LPF and charge pump circuit.

The integrated charge pump circuit can generate the negative power supply and remove the output coupling capacitor.

The AK4254 suits Car Navigation system.

Key Features

  • www. DataSheet4U. com 1. Video Section.
  • Composite Signal Inputs/Output.
  • Selector for 7 inputs and 2 outputs.
  • Video Driver for Composite Signal Output (+6dB).
  • On-Chip Sync-tip Clamp Circuit.
  • 6MHz Low Pass Filter.
  • Charge pump circuit for negative power supply.
  • Parallel I/F or Serial µP I/F (I2C, 3-wires serial) 2. Power Supply: 2.7V ~ 3.6V 3. Ta=-40 ∼ +85°C 4. Package: 30pin VSOP VIN1 VIN2 VIN3 VIN4 VIN5 VIN6 VIN7 Sync-tip Clamp AVDD AV.

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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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[AK4254] AK4254 Capacitor-less Video Amp with 7:2 Video Switch GENERAL DESCRIPTION The AK4254 is a 2ch Video AMP with 7:2 video switch, input clamp circuit, LPF and charge pump circuit. The integrated charge pump circuit can generate the negative power supply and remove the output coupling capacitor. The AK4254 suits Car Navigation system. The AK4254 is offered in a space saving 30pin VSOP package. FEATURES www.DataSheet4U.com 1. Video Section • Composite Signal Inputs/Output • Selector for 7 inputs and 2 outputs • Video Driver for Composite Signal Output (+6dB) • On-Chip Sync-tip Clamp Circuit • 6MHz Low Pass Filter • Charge pump circuit for negative power supply • Parallel I/F or Serial µP I/F (I2C, 3-wires serial) 2. Power Supply: 2.7V ~ 3.6V 3. Ta=-40 ∼ +85°C 4.