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Product Documentation

Overview of Audio Applications

The xPC Target product supports audio applications with the General Standards PMC-24DSI12 and General Standards PMC66-16AO16 boards. The PMC-24DSI12 board provides frame audio input and the PMC66-16AO1 board supplies frame audio output. The following xPC Target blocks support these blocks:

General Standards 24DSI12 Analog Input

Your audio application can include one or more General Standards PMC-24DSI12 boards. If you use multiple boards, designate one as the master. Then, daisy chain the other PMC-24DSI12 board as slaves to this board (see the General Standards PMC-24DSI12 documentation for details).

General Standards 16AO16 Analog Output

For audio output, connect the clock output pins from the General Standards PMC-24DSI12 board (the last board of the chain if there are more than one) to the clock input pins of the General Standards PMC66-16AO16 board (see the General Standards PMC66-16AO1 documentation for details).

    Note   The PMC-24DSI12 clock signal is a high-frequency signal, which requires you to preserve signal integrity when using this board. This signal is a differential signal. When the PMC66-16AO16 board receives the input clock signal from the PMC-24DSI12 board, the PMC66-16AO16 board divides that clock signal down to the sample rate. When using low voltage differential signaling (LVDS), you cannot slow down the clock for the PMC-24DSI12 board.

    Connect the boards with two wires twisted along their length.

  


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