The dspstak™ 21369 family of DSP boards are high performance digital signal processing engines based on Analog Devices third generation ADSP-21369 SHARC® DSP. This SHARC supports 32 bit fixed point and 32/40 bit floating point formats with SIMD instructions running at up to 400 MHz. This translates to a peak computation rate of 2.4 GFLOPS.

The board uses a 400MHz ADSP-21369 and include a 64Mb SDRAM, flash and eprom memory, programmable clocks, RS-232 and a choice of USB interfaces.

The ADSP-21369 has very flexible peripherals including up to eight independent serial ports (SPORTs), two SPI ports, TWI (I2C), and two UARTs. The dspstak™ Interconnect Port supports the complete DAI interface, SPI, general I/O, clocks and power connections.

Two different USB interfaces have been available. The zx version uses an FTDI full speed USB transceiver. This version is supported for Windows XP, 7 & 8. The zx2 version used a PLX NET2270 high speed USB transceiver. This version is no longer available.. We recommend that new designs migrate to any of the dspstak 214xx alternatives.  

The zx USB port looks like a very fast RS-232 interface. There is driver support for most popular OS's including Windows, Linux and Mac. You can use a simple terminal program to communicate with the dspstak 21369zx including uploading application code to flash. There is also a Windows DLL to allow better integration into a Windows program.

The heart of the dspstak™ 21369 is a Danville dspblok™ 21369zx  DSP Module. You may wish to review the dspblok™ product page for more information.

The dspstak 21369 with ICE versions substitute the production dspblok 21369zx with a dspblok 21369+ICE module. This version is supported by Analog Devices Visual DSP++ 5.0. You can use the debugger with either an EZ-Kit license (free) or a full Visual DSP license. You can also connect an Analog Devices HPICE via JTAG connections.

Optional Accessories for the dspstak 21369 Family

JTAG Adapterdspstak DSP JTAG Adapter

Danville JTAG connectors are smaller than the standard ADI recommended JTAG header. The Danville DSP JTAG Adapter converts the Danville JTAG header used to the Analog Devices JTAG connector standard.

Purchasing Information

Product VariationsPart NumberQty 1-9Qty 10-24Qty 25-99Qty 100+
dspstak 21369zx with ICE A.09369D-1-ICE $800 $700 - -
dspstak 21369zx A.09369B-1 $500 $400 $350 $325
JTAG Adapter A.08153 $25 - - -

This Product Available Thru Online E-Store


dspstak 21369 family

User Manuals

dspstak™ 21369 User Manualpdf

dspblok™ 21369zx User Manual ( 2.0) pdf

dspstak™ Family User Manual ( 2.0) pdf

Related Products and Information

dspstak™ Datasheet (2.1) pdf


External Product Information

Analog Devices ADSP-21369 Product Page

Product Variations

  • dspstak 21369zx with ICE
  • dspstak 21369zx

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