AIO Product Manual
16
AIO-T Module
TDM Audio Interface
The AIO-T module provides a digital TDM (Time-Division Multiplexed) interface for
connection directly to audio converters or other ICs. Four outputs (MCLK, SCLK,
SYNC, and OUT) and one input (IN) are provided on BNC connectors. The module
functions as a TDM master, sourcing the clocks and synchronization signals. Logic
voltage levels are hardware selectable between 1.8V and 3.3V using a jumper on the
PCB.
The TDM interface may be programmed for number of channels, bits/sample,
bits/frame, sync type (width, polarity, and placement), and clock polarity. The module
always presents 10 channels of input and output to the host computer, regardless of
the number of TDM channels. Unused channels are ignored.
