Ross 8011A-7DR-004, User Manual

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Overview
The CMA-8011A-7 Component Monitoring Amplifier provides a convenient and cost effective dual-
purpose solution for signal distribution and picture monitoring requirements in serial digital
component (4:2:2) systems. The complete unit occupies only a single card slot in a standard RossGear
8000 series digital products rack frame. Ten modules may be mounted in the 2RU frame, with four
modules in a 1RU frame.
The CMA-8011A-7 addresses high quality imaging requirements by converting the 8 MsB's of an SDI
signal to analog composite video. It uses a 10-bit DAC with a 10MHz bandwidth, thereby achieving
low artifact video output.
The CMA-8011A-7 provides one or two composite analog monitoring outputs and can work in either
NTSC or PAL environments. In addition to converting the digital signal, the CMA-8011A-7 also
outputs six or seven reclocked SDI streams. The SDI input has an exceptionally good cable equalizer
that will give error-free performance with up to 305 meters (1000 ft.) of Belden 8281 cable.
Several user-selectable settings are available to place the CMA-8011A-7 into the proper operating
mode. Some of these modes are; setting the monitoring outputs to monochrome, output a 75% color
bar pattern and blanking the vertical interval.
Of special interest on the CMA-8011A-7 is the inclusion of an adjustable analog cable equalizer for
the analog output signal. This adjustment can be set to equalize up to 90 meters (300 ft.) of Belden
8281 cable, thus ensuring that the monitoring signal is delivered to the destination without chroma
loss.
The CMA-8011A-7 has card-edge LED indicators to confirm adequate serial digital input signal
strength and to indicate monitoring errors.
Functional Block Diagram
Figure 1. Simplified Block Diagram of CMA-8011A-7 Functions
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Introduction CMA-8011A-7 User Manual (Iss.05)