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MAX4885 - Complete VGA 1:2 or 2:1 Multiplexer

General Description

The MAX4885 integrates high-bandwidth analog switches and level-translating buffers to implement a complete 1:2 or 2:1 multiplexer for VGA signals.

The device provides switching for RGB, display data channel (DDC), and horizontal and vertical synchronization (HSYNC, VSYNC) signals.

Key Features

  • a 5µA shutdown mode and is ESD protected to ±8kV Human Body Model (HBM) on externally routed pins. The MAX4885 is specified over the extended (-40°C to +85°C) temperature range, and is available in the 32pin, 5mm x 5mm TQFN package. www. DataSheet4U. com Features.
  • +5V Single-Supply Operation.
  • Programmable Voltage Clamp for Open-Drain DDC Signals.
  • Low 5Ω (typ) On-Resistance (R, G, B Signals).
  • Low 13pF (typ) On-Capacitance (R, G, B Signals).
  • Break-Before.

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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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19-0554; Rev 0; 5/06 Complete VGA 1:2 or 2:1 Multiplexer General Description The MAX4885 integrates high-bandwidth analog switches and level-translating buffers to implement a complete 1:2 or 2:1 multiplexer for VGA signals. The device provides switching for RGB, display data channel (DDC), and horizontal and vertical synchronization (HSYNC, VSYNC) signals. A low-noise charge pump with internal capacitors provides a boosted gate-drive voltage to improve performance of the RGB switches. In the 1:2 multiplexer mode, HSYNC/VSYNC inputs feature level-shifting buffers to support low-voltage CMOS or standard TTL-compatible graphics controllers. In the 2:1 multiplexer mode, the output buffers for the HSYNC/VSYNC inputs are disabled, allowing bidirectional signaling.