Crystal Vision
Hardware installation
TANDEM HD-20 User Manual R1.4
8
24/05/2007
HD-DIP2
This digital audio input module provides two AES stereo pairs or four mono channels that
may be used as sources in subsequent embedding.
HD-DIP2
Link jumpers are provided to select between 110 Ohm (upper 2 pins), HiZ (balanced – centre
pins only) or 75 Ohm (unbalanced – lower 2 pins).
J3 must be selected for 24-bit.
HD-DIP2-RS
This digital audio input module provides two AES stereo pairs or four mono channels with an
integral re-sampler for use when the AES input is either asynchronous, or at a sample rate
other than 48kHz.
HD-DIP2-RS
The sample rate inputs can work with signals from less than 30kHz to 108kHz. It is
particularly useful for asynchronous 48kHz inputs, and other sample rate inputs such as
44.1kHz and 96kHz.
The signal output from the HD-DIP2-RS to the TANDEM HD-20 is at 48kHz derived from
the video content of the SDI signal into which it is to be embedded.
Because of the processing of the audio waveform, error words indicated by V-bit set high are
ignored. Occasional errors marked by V-bit high such as would be the case with a noisy or too
long AES input path, are masked out by the processing.
