PI3VST01UEX

Analog Switches - Special Purpose Overview

The PI3VST01UEX is an HPD signal generator for VGA connectors, designed to detect monitor presence and generate a corresponding output signal. It operates with dual power supplies of 3.3V and 5.0V. The device features a typical on-resistance of 4.75 ohms with 0.5-ohm flatness, ensuring minimal signal distortion. It provides a -3dB bandwidth of 1.7GHz (typical) and low input/output capacitance of 4.5pF. The component dissipates only 0.66 mW, enabling significant power savings by allowing the system to shut off the VGA DAC when no monitor is connected.

Analog Switches - Special Purpose Feature Summary

• Generates hot plug detect signals for VGA sources to indicate monitor connection status
• Supports dual voltage operation at 3.3V and 5.0V rails
• Configurable impedance detection levels via external resistor for different termination schemes
• Provides high ESD tolerance on specific pins per IEC61000-4-2 specification

Analog Switches - Special Purpose Applications

• Notebook systems requiring VGA DAC power management
• VGA-to-DVI or DisplayPort adapters
• Automatic switching between multiple VGA monitors
• Chipset VGA outputs in MXM or PCIe configurations

Analog Switches - Special Purpose Procurement Notes

Verify the ordering suffix 'X' indicates tape and reel packaging rather than tube. Confirm the package code 'U' corresponds to the 8-pin MSOP form factor. Ensure the component meets Pb-free and Green material requirements as specified in the datasheet. Check for RoHS compliance documentation if required by your manufacturing standards.

Analog Switches - Special Purpose Selection Notes

Select this component when VGA monitor detection is required without native support from the source chipset. Choose based on the specific termination scheme: use a 330kOhm resistor for Case_150//75 or 200kOhm for Case_75//75. Ensure the design accommodates the open-drain nature of the HPD_OUT signal requiring an external pull-up resistor.

Analog Switches - Special Purpose Part Context

This part belongs to the Pericom/PI3VST series of video signal conditioning components. It specifically addresses the lack of hot-plug detection in legacy VGA standards. It complements other Pericom products like the PI3V724 which integrates similar detection with a 1:2 switch.

Analog Switches - Special Purpose Replacement Considerations

No direct public substitute part numbers are documented in the provided datasheet. Designers should verify pin compatibility and electrical characteristics if considering alternative vendors for VGA HPD generation functions.