I. General Specifications for High-Resolution VGA Converters:
- Conversion Type:
- VGA to Digital (most common for “high resolution”): Converts analog VGA to HDMI, DVI, or DisplayPort. These converters are directional (VGA in, digital out) and often require external power.
- VGA to Analog (less common for “high resolution” unless upscaling): Converts VGA to CVBS (composite video), S-Video, or component video. These might also upscale lower-resolution VGA signals.
- Bi-directional converters are rare and usually a combination of two separate converter functions.
- Supported Input Resolutions (VGA):
- Common PC resolutions: 640×480, 800×600, 1024×768, 1280×720, 1280×768, 1280×800, 1280×960, 1280×1024, 1360×768, 1366×768, 1440×900, 1600×900, 1600×1200, 1680×1050, 1920×1080, 1920×1200.
- Refresh rates often 60Hz, but some may support 70Hz, 75Hz, 85Hz.
- Supported Output Resolutions:
- For VGA to HDMI/DVI/DisplayPort:
- Standard: Up to 1080p (1920×1080) at 60Hz. This is the most common “high resolution” for these converters.
- PC Resolutions: Up to 1920×1200.
- Some specialized or higher-end converters might claim support for even higher resolutions like 2048×1536, but this becomes less common and depends heavily on the quality of the VGA source and cable.
- For VGA to other analog formats (if applicable): Output resolutions typically match standard TV formats (e.g., 480i/p, 576i/p).
- For VGA to HDMI/DVI/DisplayPort:
- Audio Support:
- Crucial for VGA to HDMI/DisplayPort converters: Since VGA is video-only, these converters usually have a 3.5mm audio input jack (or sometimes RCA stereo) to embed analog audio from the source into the digital output signal.
- Power Supply:
- Most high-resolution VGA converters require external power, often via a USB cable (Micro USB or USB-A) or a DC 5V power adapter. This is because they need to actively convert the analog signal to digital and scale it if necessary.
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