Overview
The PTN3355BS528, 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 can be directly connected to a 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 | Value |
|---|---|
| Package Type | 40-pin HVQFN |
| DisplayPort Lanes | 1 or 2 lanes |
| DisplayPort Speed | 2.7 Gbit/s (HBR) or 1.62 Gbit/s (RBR) per lane |
| VGA Switch | 1:2 VGA switch |
| Supported Resolutions | VGA to WUXGA (e.g., 640x480, 800x600, 1024x768, 1280x1024, 1600x1200, 1920x1440, 2048x1536) |
| Pixel Clock Rate | Up to 240 MHz |
| 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 |
| DDC Channel | VESA DDC channel bridged to DisplayPort Interface |
Key Features
- VESA-compliant DisplayPort converter supporting 1-lane and 2-lane modes.
- High-speed triple 8-bit video digital-to-analog converter.
- Integrated 1:2 VGA switch to drive VGA signals to either the main board connector or docking connector.
- Supports HBR (High Bit Rate) at 2.7 Gbit/s and RBR (Reduced Bit Rate) at 1.62 Gbit/s per lane.
- Low power consumption with approximately 200 mW for video streaming in WUXGA resolution and 410 μW in Low-power mode.
- Monitor detection through load sensing on RGB lines and reporting sink connection status to the source.
- I2C-bus over AUX per DisplayPort standard.
Applications
The PTN3355BS528 is optimized primarily for motherboard applications, enabling the conversion of DisplayPort signals to VGA signals. It is particularly useful in scenarios where legacy VGA monitors need to be supported alongside newer DisplayPort interfaces. This component is also suitable for use in docking stations and other devices that require the conversion of digital video signals to analog VGA signals.
Q & A
- What is the primary function of the PTN3355BS528?
The primary function of the PTN3355BS528 is to convert a DisplayPort signal to an analog VGA signal. - What are the supported DisplayPort speeds?
The PTN3355BS528 supports DisplayPort speeds of 2.7 Gbit/s (HBR) and 1.62 Gbit/s (RBR) per lane. - What is the maximum pixel clock rate supported by the PTN3355BS528?
The maximum pixel clock rate supported is up to 240 MHz. - How many VGA channels can the PTN3355BS528 support?
The PTN3355BS528 supports a 1:2 VGA switch, allowing it to drive VGA signals to either the main board connector or the docking connector. - What is the power consumption of the PTN3355BS528?
The power consumption is approximately 200 mW for video streaming in WUXGA resolution and 410 μW in Low-power mode. - Does the PTN3355BS528 support I2C-bus over AUX?
Yes, it supports I2C-bus over AUX per the DisplayPort standard. - What is the purpose of the integrated 1:2 VGA switch?
The integrated 1:2 VGA switch allows the component to drive 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 PTN3355BS528 handle monitor detection?
The PTN3355BS528 performs load sensing on RGB lines and reports the sink connection status to the source. - What are the typical applications of the PTN3355BS528?
Typical applications include motherboard designs, docking stations, and any scenario where DisplayPort signals need to be converted to VGA signals. - Is the PTN3355BS528 compliant with VESA standards?
Yes, the PTN3355BS528 is VESA-compliant.
