PTN3355BS/F2

Overview

The PTN3355BS/F2 is a DisplayPort to VGA adapter integrated circuit manufactured by NXP Semiconductors. It functions as a low-power bridge, converting digital DisplayPort signals into analog RGBHV video for VGA displays. The device integrates a DisplayPort receiver, a high-speed triple video digital-to-analog converter (DAC), and a 1:2 VGA switch. It supports one or two DisplayPort lanes operating at High Bit Rate (HBR) of 2.7 Gbit/s per lane or Reduced Bit Rate (RBR) of 1.62 Gbit/s per lane. The component operates from a single 3.3 V power supply, consuming approximately 200 mW during WUXGA video streaming and entering a low-power mode with significantly reduced consumption when no valid source data is present.

Feature Summary

• Integrates a DisplayPort receiver and a high-speed triple video DAC for direct signal conversion
• Includes an internal 1:2 VGA switch to support dual-port docking station designs
• Supports VESA DDC channel bridging and I2C-bus over AUX communication protocols
• Features load sensing on RGB lines to report sink connection status to the source

Applications

• Motherboard display adapters for PC systems
• Ultra-low power notebook computer designs
• Docking stations requiring multiple VGA outputs
• Display dongles and adapters

Procurement Notes

Verify the specific suffix against official NXP documentation to confirm package type and tape-and-reel specifications. Confirm RoHS compliance status and moisture sensitivity level requirements prior to assembly. Ensure the ordering part number matches the exact variant required for your PCB layout constraints.

Selection Notes

Select this component for applications requiring a compact solution to convert DP signals to VGA with minimal external components. Consider the integrated 1:2 switch if designing docking stations that need to drive two independent VGA monitors from a single DP source. Verify thermal management capabilities for the HVQFN40 package in enclosed chassis designs.

Part Context

The PTN3355 belongs to NXP's family of low-power DisplayPort to VGA bridge ICs. It is designed primarily for motherboard and portable device applications where space and power efficiency are critical. The device simplifies design by integrating the VGA switching functionality directly within the bridge chip, reducing the bill of materials compared to discrete solutions.

Replacement Considerations

Check NXP datasheets for updated versions within the PTN3355 series. Evaluate alternative DP-to-VGA converters from other manufacturers only if pin compatibility and electrical characteristics match exactly. Verify that any substitute supports the same lane rates and includes necessary EDID handling features.