Danville Signal - Your Partner for SHARC-based DSP Boards, Hardware and Systems

dspstak™ a9238 Two Channel High Speed ADC I/O Board

The dspstak a9238 is based on an Analog Devices' AD9238 A/D converter. This 12 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 a9238 is ideal for direct conversion or IF sampling receiver applications.

The dspstak a9238 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.

Purchasing Information

This Product Available Thru Online E-Store