dspstak™ a9248 Two Channel High Speed ADC & DAC I/O Board

The dspstak a9248 is based on an Analog Devices' AD9248 A/D converter. This 14 bit ADC can sample as high 40M/s in single channel mode or 25M/s in dual channel mode. Since both channels are sampled synchronously, the dspstak a9248 is ideal for direct conversion or IF sampling receiver applications.

The dspstak a9248 also includes a stereo sigma delta digital audio DAC (AKM AK4396). The DAC sample rate is programmable for sample rates as high as 216kHz. 

The dspstak a9248 takes advantage of the PDAP (parallel data acquisition port) of the third generation SHARC. The PDAP interface acts as a FIFO so that a block of samples can be acquired and then analyzed by the DSP.

The sampling clock is provided by an external clock or may be supplied by a low phase jitter programmable clock. An external trigger input is also available.

One of two input configurations are available. Transformer coupled inputs have lower noise and best isolation. Opamp style inputs (AD8138) are better suited for lower frequency operation and are DC coupled.

SMA connectors are used for all inputs and outputs.

Purchasing Information

 Part Number Qty 1-9Qty 10-24Qty 25-99Qty 100+
dspstak a9248 (Xfmr Inputs) A.04211A-1 $500 $450 $400 $350
dspstak a9248 (AD8138 Inputs) A.04211A-2 $500 $450 $400 $350

This Product Available Thru Online E-Store

dspstak a9238

Datasheets and User Manuals

dspstak a9238 Datasheet   pdf
dspstak a9248 Datasheet   pdf
dspstak™ Family User Manual
( 2.0) pdf

Related Products and Information

dspstak™ Datasheet (2.1) pdf

External Product Information

Analog Devices AD9248 Product Page

AKM AK4396 DAC Product Page



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Danville Signal Processing, Inc.
29687 82nd  Avenue Way,  Cannon Falls, MN 55009
Phone: (507) 263-5854 Fax: (877) 230-5629