Tektronix Grass Valley 3000 - Manual (Page 25)

1-9
Video and Key Inputs and Outputs
Video and Key Inputs and Outputs
Inputs
Three types of input options may be installed in the Signal
Processor Frame to suit the needs of your installation. Each input
module supports four inputs and provides auto-timing of each
input.
The following types of input modules are available.
NOTE: Each of these inputs can be treated by the switcher as either a
video input or a key input.
■ Analog 10-bit Composite Quad Input Module – Provides
noise filtering, anti-aliasing, and auto-timing of the input
signals, then performs an analog-to-digital conversion of each
signal and multiplexes the data onto a video or key bus.
■ Digital Bit-Parallel Quad Input Module – Converts the inputs
from ECL to TTL, auto-times the signals, and multiplexes
them onto the video or key bus.
■ Digital Bit-Serial Quad Input Module – Decodes the inputs
from serial to parallel, auto-times the signals, and multiplexes
the data onto the video or key bus.
In addition, RGB input modules are available with the Dual
Chroma Keyer option. Each module supports two sets of RGB
inputs (see
Figure 1-4 ).
Refer to the Startup and Configuration section of this manual for
information on assigning input formats and adjusting timing.