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dspblok 21479


Analog Devices ADSP-21479 SHARC DSP Module

The dspblok™ 21479 is a highly integrated DSP module that incorporates an Analog Devices’ ADSP-21479 SHARC DSP operating at 250 MHz, flash, EEProm and a switching power supply to support the core voltage requirements.

To meet todays requirements for SWaP the module is only 60mm x 60mm and all the connections are brought out to standard 2mm dual row header footprints. The USB port can operate independently to support USB bus powered enumeration requirements. 

Danville dspblok DSP Engines are the driving force behind many of Danville’s standalone products such as the dspstak, dsprak, dspMusik and dspInstrument product lines.


Power Supply
There are two power supply connections to the dspblok: DSP core (Vdd) and DSP I/O and Memory (Vd+3.3). The DSP core supply may range from 3.3V to 5V. This is the input to an on-board switching power supply that supplies 1.2V to the ADSP-21479. DO NOT use a higher voltage supply for the core supply input (JH4-Vdd). A single 3.3V supply is all that is required to power the dspblok 21479, but in some cases, a 5V supply may be more convenient. The DSP I/O and Memory supply must be 3.3V.

The ADSP-21479 includes 5Mbits of internal SRAM. A 16Mbit serial flash memory may be used to bootload the DSP. There is a pre-installed bootloader program that resides in the flash.

The ADSP-21479 has 20 DAI lines and 14 DPI lines. Collectively these can be thought of as two sets of crossbar switches that connect to a wealth of peripherals. The dspblok 21479 maintains the flexibility of the DAI and DPI by bringing out all 20 DAI and 12 of 14 DPI lines to external connections.

The dspblok 21479 has a 25.000MHz crystal on the board to use as its clock source. The ADSP-21479 configures its internal PLL to create the core clock. The maximum speed of the ADSP-21479 in LQFP 100 is 266MHz. The default configuration is 25.000M x 10 = 250M.

The dspblok 21479 is RoHS compliant.

The dspblok 21479 is a subcomponent of a larger system; therefore it is not subject to the WEEE directive EU Directive 2002/96/EC.

Technical documents

Ordering information

Please contact Sarsen Technology for up to date pricing and availability
dspblok 21479 A.08479A
dspblok 21479+ICE A.08479A-ICE
JTAG Adapter A.08154