Evaluation Tools
The EZ-Extender consists of three Analog Devices AD1939 audio codecs and provides 24 channels of analog audio out, 12 channels of analog audio in. The primary codec operates in both in I2S and TDM mode and can run at sample rates of 48, 96, or 192 kHz. The other two codecs are con- figured to operate in dual line TDM mode. The three codecs together can operate in dual line TDM mode for 24 analog channels out and 12 analog channels in at a sample rate of 192 kHz.
The audio input and output is available via multiple RCA connectors. A group of switches is available if a user should decide to evaluate the audio codec inputs and outputs in a differential mode.
DB25 to XLR cables are not supplied with the EZ-Extender. The SHARC audio EZ-Extender daughter board features:
•Analog codecs – AD1939 (3): ADI 192 kHz audio codec, 24 chan- nels audio out (12 stereo channels), 12 channels audio in (6 stereo channels)
•Single-ended input/output – RCA 4 x 1 inputs (3), RCA 4 x 2 outputs (3)
•Differential input/output – DB25 connector inputs (2), DB25 connector outputs (3)
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