Analog Devices AD1938 Evaluation Board EVAL-AD1938AZ EVAL-AD1938AZ Data Sheet

 

 

 

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This document explains the design and setup of the evaluation 
board for the AD1938. The evaluation board must be connected 
to an external ±12 V dc power supply and ground. On-board 
regulators derive 3.3 V supplies for the AD1938. The AD1938 is 
controlled through an SPI interface. A small external interface 

board, EVAL-ADUSB2EBZ (also called USBi), connects to a PC 
USB port and provides SPI access to the evaluation board 
through a ribbon cable. A graphical user interface (GUI) 
program is provided for easy programming of the chip in a 
Microsoft® Windows® PC environment. The evaluation board 
allows demonstration and performance testing of most AD1938 
features, including four ADCs and eight DACs, as well as the 
digital audio ports. 

Additional analog circuitry (ADC input filters, DAC output 
filter/buffer) and digital interfaces such as S/PDIF are provided 
to ease product evaluation.  

All analog audio interfaces are accessible with stereo audio,  
3.5 mm TRS connectors. 

 

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