Overview
The PTN3355BSMP, produced by NXP USA Inc., is a low-power DisplayPort to VGA adapter integrated with a 1:2 VGA switch. This component is primarily optimized for motherboard applications, enabling the conversion of a DisplayPort signal from the chipset to an analog video signal that directly connects to the VGA connector. It supports a wide range of display resolutions, including VGA to WUXGA, and operates with either one or two DisplayPort lanes at speeds of 2.7 Gbit/s or 1.62 Gbit/s per lane.
Key Specifications
| Parameter | Description |
|---|---|
| Package/Case | 40-HVQFN (6x6) |
| DisplayPort Lanes | 1 or 2 lanes |
| DisplayPort Speed | 2.7 Gbit/s or 1.62 Gbit/s per lane |
| VGA Switch | Integrated 1:2 VGA switch |
| Supported Resolutions | VGA to WUXGA (e.g., 2048x1536, 1920x1440, 1600x1200, etc.) |
| Power Supply | 3.3 V |
| Power Consumption | Approximately 200 mW for video streaming in WUXGA resolution, 410 μW in Low-power mode |
| AUX Channel | 1 MHz AUX channel, supports I2C-bus over AUX per DisplayPort standard |
Key Features
- VESA-compliant DisplayPort converter supporting 1-lane and 2-lane modes
- High Bit Rate (HBR) at 2.7 Gbit/s per lane and Reduced Bit Rate (RBR) at 1.62 Gbit/s per lane
- Integrated high-speed triple 8-bit video digital-to-analog converter
- Supports a wide range of video resolutions up to a pixel clock rate of 240 MHz
- Integrated 1:2 VGA switch for driving VGA signals to either the main board connector or docking connector
- Monitor detection through load sensing on RGB lines and reporting sink connection status to the source
- Low-power consumption with VGA output powered down when no valid DisplayPort source data is being transmitted
Applications
- Motherboard applications for converting DisplayPort signals to VGA
- Laptops and desktop computers requiring DisplayPort to VGA conversion
- Docking stations and USB-C hubs with DisplayPort and VGA outputs
- Consumer electronics such as monitors and projectors
- Industrial and commercial display systems
Q & A
- What is the primary function of the PTN3355BSMP?
The PTN3355BSMP is a low-power DisplayPort to VGA adapter with an integrated 1:2 VGA switch, designed to convert DisplayPort signals to analog VGA signals.
- What are the supported DisplayPort speeds for the PTN3355BSMP?
The PTN3355BSMP supports DisplayPort speeds of 2.7 Gbit/s and 1.62 Gbit/s per lane.
- What types of VGA resolutions does the PTN3355BSMP support?
The PTN3355BSMP supports a wide range of VGA resolutions, including VGA to WUXGA (e.g., 2048x1536, 1920x1440, 1600x1200, etc.).
- How does the PTN3355BSMP manage power consumption?
The PTN3355BSMP consumes approximately 200 mW of power for video streaming in WUXGA resolution and 410 μW in Low-power mode. The VGA output is powered down when no valid DisplayPort source data is being transmitted.
- What is the role of the integrated 1:2 VGA switch in the PTN3355BSMP?
The integrated 1:2 VGA switch enables driving VGA signals to either the main board connector or the docking connector, helping to reduce the Bill of Materials (BOM) by eliminating the need for a discrete VGA switch component.
- How does the PTN3355BSMP handle monitor detection?
The PTN3355BSMP performs load sensing on RGB lines and reports sink connection status to the source, aiding in monitor detection.
- What is the power supply requirement for the PTN3355BSMP?
The PTN3355BSMP is powered from a 3.3 V power supply.
- Does the PTN3355BSMP support I2C-bus communication?
Yes, the PTN3355BSMP supports I2C-bus over the AUX channel per the DisplayPort standard.
- What package type is the PTN3355BSMP available in?
The PTN3355BSMP is available in a 40-HVQFN (6x6) package.
- What are some common applications for the PTN3355BSMP?
