PTN3356BS/F1MP

Overview

The PTN3356BS/F1MP is a flash-based DisplayPort to VGA adapter IC designed for motherboard applications. It converts digital DisplayPort signals into analog RGB video for direct connection to VGA connectors. The device integrates a DisplayPort receiver supporting one or two lanes at 2.7 Gbit/s or 1.62 Gbit/s per lane, and a triple 8-bit video DAC capable of pixel clocks up to 240 MHz. Powered by a single 3.3 V supply, it consumes approximately 200 mW during WUXGA streaming and 410 μW in low-power mode. It supports resolutions from VGA to WUXGA with color depths of 6, 8, 10, 12, or 16 bits.

Feature Summary

• Integrates a DisplayPort receiver and high-speed triple 8-bit video DAC for protocol conversion
• Supports I2C-bus over AUX channel and bridges the VESA DDC channel to the DisplayPort interface
• Includes monitor presence detection via load sensing on RGB lines
• Features active HIGH Hot Plug Detect (HPD) signal output to the source

Applications

• Notebook computers
• Tablets and desktop PCs
• Dongles, adapters, and docking stations

Procurement Notes

Verify the specific firmware version associated with the 'F1' suffix against current NXP documentation before procurement. Confirm that the HVQFN32 package dimensions and thermal pad requirements align with the target PCB layout. Ensure the design accommodates the required external components such as the crystal oscillator and reference resistor for proper initialization and operation.

Selection Notes

Select this component when a compact solution is needed to bridge DisplayPort sources to legacy VGA displays. Consider the power consumption differences between DC-to-DC converter mode and LDO mode based on thermal constraints. Verify that the supported pixel clock rates and color depths meet the specific resolution requirements of the target display panel.

Part Context

The PTN3356 belongs to NXP's family of low-power DisplayPort to VGA adapters. It is optimized for space-constrained environments like motherboards where integrating a full graphics controller is unnecessary. The device simplifies system design by handling link training, clock recovery, and digital-to-analog conversion within a single small footprint.

Replacement Considerations

PTN3355BS/F1MP is a related variant featuring an integrated 1:2 VGA switch. Verify pin compatibility and functional differences regarding the internal switch before substitution.