The dspstak™ c96k44 is a 4 channel audio ADC & DAC I/O Module based on a pair of sigma delta stereo audio codecs, specifically the Wolfson WM8731 24 bit, 96kHz Stereo Audio Codec.

Assuming a 12.288MHz master clock, the c96k44 allows sampling rates from 8k to 96k. Other sampling rates are available by reprogramming the dspstak™ DSP Engine to another master clock frequency.

A special version of the c96k44 (Opt 1) is available that allows two dspstak™ c96k44 modules to be combined for 8 channel configurations all with synchronous sampling.

There are a number of additional accessory boards available for the dspstak™ c96k44 as well. These include a small power amplifier module, BNC extender boards and 6.3mm phone jack extender boards.


Optional Accessories for the dspstak c96k44

dspstak™ c96k44 - Option 1

The dspstak™ c96k44 Option 1 is a stackable version of the c96k44 that when combined with another standard c96k44, creates an 8 channel composite system.

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dspstak™ c96k44 - BNC Extender Board

Each extender board is designed to expand the latching header into 8 separate connectors. In the BNC case, the three wire microphone bias circuit is not available. The extender boards do not connect to the optional digital I/O, only the audio inputs and outputs are used.

In the standard version, a 20 pin right angle female dual row header connects directly to the latching header. The extender boards can also be supplied with a 20 pin latching header. This would also require a ribbon cable (34 pin to 20 pin for standard c96k44 boards) to connect the boards. The extender boards can also be assembled to use a mating DB-37M connector.

p_21262_ext_phone_l_150dspstak™ c96k44 - Phone Jack Extender Board

Each extender board is designed to expand the latching header into 8 separate connectors. The 6.3mm (1/4’) phone jack version can supply the microphone bias on the ring if desired. The extender boards do not connect to the optional digital I/O, only the audio inputs and outputs are used.

In the standard version, a 20 pin right angle female dual row header connects directly to the latching header. The extender boards can also be supplied with a 20 pin latching header. This would also require a ribbon cable (34 pin to 20 pin for standard c96k44 boards) to connect the boards. The extender boards can also be assembled to use a mating DB-37M connector.

c96k44 Power Amplifierdspstak™ c96k44 Power Amplifier

The dspstak c96k44 power amplifier plugs into two additional connectors that are added to the standard dspstak c96k44. Due to clearance restrictions, the power amplifier can only be installed on the top I/O module of a dspstak. This means that only one power amplifier module may be used in an eight channel dspstak c96k44 system.


Purchasing Information

Product VariationsPart Number Qty 1-9Qty 10-24Qty 25-99Qty 100+
dspstak c96k44 A.04040B $200 $150 $125 $100
dspstak c96k44 Option 1 A.04041B $225 $175 $150 $125
dspstak c96k44 BNC Extender A.04042-BNC $50 $40 $35 $30

dspstak c96k44 Phone Extender

 A.04042-PHONE $50   $40 $35  $30

dspstak c96k44 Power Amplifier 

 A.04045 $100  $100  $60   $40

This Product Available Thru Online E-Store

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User Manuals

dspstak™ c96k44 I/O Modulepdf

dspstak™ Family User Manual ( 2.0) pdf


Related Products and Information

dspstak™ Datasheet (2.1) pdf

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