The dspstak™ c192k48 is a 4 channel audio ADC & 8 channel DAC I/O Module based on an Analog Devices AD1938 sigma delta audio codec. It supports sampling rates as high as 192kHz. You can stack up to four dspstak c192k48 boards to create channel counts as high as 16 in and 32 out. Each channel samples synchronously even in multiboard configurations.

The c192k48 has 10dB stepped PGAs for inputs with a range of 0 to +30dB. It accepts a full scale signal of 2V RMS and outputs the same.

Due to the high number of connections, the inputs and outputs are brought out on a 34 pin latching header. You can use a standard ribbon cable to connect to an external system or you can use one of the dspstak balanced or single ended extenders.

Options and Accessories for the dspstak™ c192k48 I/O Module

dspstak™ c192k48 - Opt 1 (P/N A.04080-1)

The dspstak™ c192k48 Opt 1 is a stackable version of the c192k48 that when combined with another standard c192k48, creates a higher channel count composite system. For example, an 8 input/16 output system could use one dspstak c192k48 and one dspstak c192k48 - Opt 1.

dspstak™ c192k48 - Extender Boards (Unbalanced)

c192k48 Unbalanced ExtenderThe c192k48 Extender boards fan out the c192k48 connections to either BNC connectors or 6.3mm (1/4") phone jacks. Each extender card also provides a SPI expansion port (10 pin .100 box header). The SPI expansion port might be used as a control interface for front panel controls and indicators. Each board has additional digital I/O including two opto-isolated digital outputs. Some versions include an S/PDIF (AES 3id) interface and others opto-isolated inputs.

Versions are as follows:

  • dspstak c192k48 Extender - BNC - S/PDIF - Primary (P/N A.04090-1)

    This extender is used for audio applications since it includes an S/PDIF (AES 3id) interface. The S/PDIF transceiver is provided by the SHARC DSP so there may only be one of these cards in a multichannel system.

  • dspstak c192k48 Extender - BNC - Secondary (P/N A.04090-2)

    This extender is used for audio applications but excludes the S/PDIF (AES 3id) interface. It would be used in multicard systems.

  • dspstak c192k48 Extender - Phone - S/PDIF - Primary (P/N A.04090-3)

    This extender is used for audio applications since it includes an S/PDIF (AES 3id) interface. The S/PDIF transceiver is provided by the SHARC DSP so there may only be one of these cards in a multichannel system. The inputs can be configured to support electret microphones.

  • dspstak c192k48 Extender - Phone - S/PDIF - Primary (P/N A.04090-4)

    This extender is used for audio applications but excludes the S/PDIF (AES 3id) interface. It would be used in multicard systems. The inputs can be configured to support electret microphones.

  • dspstak c192k48 Extender - BNC - Digital I/O - Primary (P/N A.04090-5)

    This extender is used for industrial applications. It includes two opto-isolated inputs and two opto-isolated outputs.

  • dspstak c192k48 Extender - BNC - Digital I/O - Secondary (P/N A.04090-6)

    This extender is used for industrial applications. This board doesn't not include optoisolated inputs.

dspstak™ c192k48 - Balanced Audio Extender Boards

dspstak c192k48 Balanced ExtenderThe c192k48 Balanced Audio Extender boards fan out the c192k48 connections to a pair of DB-25F connectors. One connector is used for inputs, the other for outputs. Each connector is wired in to the defacto Tascam standard. The inputs are balanced and accept +4dBu (+22dBu FS) audio levels. THAT1206 balanced line receivers are used for their exceptional common mode rejection. Outputs are also balanced to provide +4dBU (+22dBU FS) levels. You can use the ground return for unbalanced applications.

Each extender card also provides a SPI expansion port (10 pin .100 box header). The SPI expansion port might be used as a control interface for front panel controls and indicators. There is also an digital I/O expansion connector on the board that is suitable for LEDs etc.

Versions are as follows:

  • dspstak c192k48 Balanced Extender - S/PDIF - Primary (P/N A.04091A-1)

    This extender includes an S/PDIF (AES 3id) interface. The S/PDIF transceiver is provided by the SHARC DSP so there may only be one of these cards in a multichannel system.

  • dspstak c192k48 Balanced Extender - Secondary (P/N A.04091A-2)

    This extender excludes the S/PDIF (AES 3id) interface.


Purchasing Information

 Part NumberQty 1-9Qty 10-24Qty 25-99Qty 100+
dspstak c192k48 A.04080C $275 $250 $225 $200
dspstak c192k48 option 1 A.04080C-1 $300 $275 $250 $225
dspstak c192k48 Extender BNC, S/PDIF, primary A.04090-1 $100 $90 $80 $70
dspstak c192k48 Extender BNC, secondary A.04090-2 $100 $90 $80 $70
dspstak c192k48 Extender Phone, S/PDIF, primary A.04090-3 $100 $90 $80 $70
dspstak c192k48 Extender Phone, secondary A.04090-4 $100 $90 $80 $70
dspstak c192k48 Extender BNC, I/O, primary A.04090-5 $100 $90 $80 $70
dspstak c192k48 Extender BNC, I/O, primary A.04090-5 $100 $90 $80 $70
dspstak c192k48 Extender BNC, I/O, secondary A.04090-6 $100 $90 $80 $70
dspstak c192k48 Balanced Extender primary A.04091A-1 $180 $170 $160 $150
dspstak c192k48 Balanced Extender secondary A.04091A-2 $180 $170 $160 $150

This Product Available Thru Online E-Store

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User Manuals

dspstak™ Family User Manual (2.0) pdf


Related Products and Information

dspstak™ Datasheet (2.1) pdf

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