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The ADC20 Card
Introduction
The AXON ADC20 is an analog audio to digital audio converter card
with delay. The delay offset ranging from 0ms up to 5200 ms at 48
kHz.
This card can only be used as an add-on card. In this mode the card is
set to embed audio signals. In this function the card acts as an analog
input board that feeds a master card positioned to the left with
embedder functionality. The SEB20, for example, can perform an
embedder function with the ADC20 as its input card. The ADC20
converts the analog audio into AES/EBU signals and puts it on the
bus. These signals can then be embedded into the SDI data stream.
Other cards with an embedding function are: ASV08, ASV10,
ASV20, ASC10, SFS11/21, SEB10 and ADL24.
Key Features
The Key features of the ADC20 are as follows:
Performance
The ADC20 has high quality 24bit D/A converters that are capable of
sampling up to 192kHz.
Levels
To maintain maximum performance and optimum noise levels Axon
have given the input section of this card a selectable analog gain stage
that ensures the A/D converter chip is working in the ideal range of its
input stage.
We have implemented reference levels of +24dBu, +18dBu,+15dBu,
+12dBu.
Back planes
The ADC20 can be used with the BPL04, BPL05 and BPL05D
Miscellaneous
The ADC20 cards fit into the Axon SFR04 & SFR18 rack.
LED’s on the front of the board indicate the presence of an Audio
Input signal, Connection & Processor Errors.
The ADC20 can be controlled by Axon Synapse set-up software and
the SCP08 control panel.
