Crystal Vision
Installation
TANDEM-300 User Manual R1.2
78
14/02/2008
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 20-bit.
HD-DIP2RS
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 48 kHz.
HD-DIP2RS
The sample rate inputs can work with signals from less than 30 kHz to 108 kHz. It is particularly useful
for asynchronous 48 kHz inputs, and other sample rate inputs such as 44.1 kHz and 96 kHz.
The signal output from the DIP2-RS to the TANDEM-300 is at 48 kHz 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.
If the V-bit is consistently high, to indicate continuous error states, or to indicate non-audio data, then
the processor will give a silent output. All other cards, except RS4, pass audio data unaltered even
when V bit is set or held high.
Link jumpers are provided to select between 110 Ohm (upper two pins), HiZ (balanced – centre pins
only) or 75 Ohm (unbalanced – lower two pins).
Notes:
In general, balanced outputs require the use of rear modules with a D-type connector and
unbalanced outputs are for use with BNCs.
HiZ is achieved by removing termination jumpers – they can be parked for safe keeping
by replacing them using only one pin.
