Model AC345A
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1. Introduction
1.1 General
The Black Box Model AC345A is a high-performance universal VGA /
HDTV to VGA / HDTV Scan Rate converter. It also offers the
capability to "Mirror" the VGA input signal on the X-axis.
The Video Processor combines the functions of a video scaler, scan-
converter, and format transformer and is packed into a compact and
housing. The AC345A is controlled via push buttons and OSD menu.
The controls include input/output setup picture adjustment, H/V phase
adjustment, System information and many other advance options.
The AC345A allows you to specify a resolution and refresh rate for it's
output. Then it will output a steady (uninterrupted) VGA or
Component HD signal to your display device at your specified rate
regardless of the input. This effectively allows any VGA switch, such
as Black Box AC505A or AC506A, to become a virtual seamless
switch. Therefore when you switch from one input to another, the
display device does not see any interruption in the video signal timing.
1.2 Features
•
The resolution of any PC or HDTV video signal can be scaled up or
scaled down to any other PC or HDTV resolution. It can also
change the frame rate of the output.
•
Large Video memory for real-time frame rate capture &
conversion.
•
Signal format conversion between RGBHV and YPbPr.
•
Input: PC (VGA/SVGA/XGA/SXGA) + HDTV(480i 576i 480p
567p 720p 1080i), @ 60 to 85 Hz
•
Output: PC
(VGA/SVGA/XGA/SXGA)
+ HDTV
(480p/576p/720p/1080i)
•
Automatically detects input mode and timing parameters
•
Allows fine-tuning the output picture to optimum through
adjustment of sampling clock, phase, and position on screen.
•
Can Mirror VGA output Horizontally; perfect for teleprompting
and rear projection systems
