High-speed 8-channel DAC with ADC and PC interface?

Hi Mark,

We do have the AFE7225 which has 2 DAC and 2 ADC on a single chip.  However this doesn't look like it has enough channels for your needs.

We don't have any 8 channel discrete channel DACs in our highspeed product line, but we do have several 4 channel DACs in various sample rates and interfaces (DAC5687/88 CMOS, DAC3484 LVDS, DAC38J84 JESD204B).

For the octal ADC you could use the ADS5281/2/7 family of 10/12 bit ADCs.

All of these ADCs and DACs will interface to either our TSW1400/1405/1406, or TSW14J56 capture/generator platforms and our HSDC Pro analysis software.

Ken

Hey Ken, 

thank you for your support! But if I see it correctly the Evaluation boards do not come with any ADCs/DAC right?

Cheers, 

Mark

Mark,

Sorry for the confusion.  The ADC and DAC EVMs have devices soldered down.  They can be used with the generic pattern capture or generation EVMs like the full featured TSW1400, TSW14J56 and their lower cost equivalents - TSW1405, TSW1406, TSW14J50.

For a typical evaluation you will need the device EVM (ADC or DAC) and a TSW14xxx + HSDC Pro capture/generator software.

Ken

Dear Ken, 

thank you again for your support! I think we get to the point now...

So as i wrote in the beginning, I want to generate a 2MHz sine wave of little voltage (maybe 5V), send it to a test material, and collect the answer at 8 points simultaneously. Since we have a lot of HF-noise, we want to low-pass-filter the analogue input and after digitizing it we perform the FFT to select only the frequency we have put into (2MHz). Then the magnitude of only this 2MHz-FFT coefficient is sent to a PC.

So can I now buy a TSW14J56EVM and connect a ADS5281EVM onto it to achieve the above mentioned requierement, because the TSW can also generate patterns? Or do I have to buy a DAC3484EVM as well (if the TSW can connect to both ADC and DAC simultaniously) to generate the 2 MHz wave I want to send to the material under test?

If the TSW could connect to ADC and DAC, is it then maybe even possible to generate not only a sine wave of 2 Mhz but a superposition of waves with different frequencies (4, because it is a 4 channel DAC)? Then the FFT would select 4 coefficients and not only 1.

Secondly, is the TSW14J56EVM actually able to perform a FFT and sending the output to a PC?

Thirdly, is there any EMI-protected housing available for the TSW-ADC(-DAC) combination, or maybe for every single component an own housing?

Finally, do we as a (german) university get any special pricing offers?

Many thanks in advance!!

Mark

Mark,

The TSW14J56 is just an FPGA that can capture digital patterns from an ADC or source patterns to a DAC.  It is also capable of doing a transceiver function (digital) to a device that has both ADC and DACs.  We do not currently have just a device with ADC and DAC (together) on 1 IC using the JESD204B interface.

The ADS5281 is an LVDS interface and would connect to our TSW1400 or TSW1405.  The DAC3484 is an LVDS interface and would connect to our TSW1400 or TSW1406.  HSDC Pro provides control and loading/unloading of the data from the ADC or to the DAC.

Also please keep in mind most of the ADC and DACs cannot generate over 2Vpp on their own.  If you need 5Vpp you will need to work out some other means to get the voltage you need - either through transformer or amplifier circuits.

The hardware (TSW1400/1405/1406/14J56) is not capable of doing any analysis, it only performs the pattern capture and generation for the ADC and DAC.  The analysis is performed within the HSDC Pro software.  You can control this software to provide the results to another piece of software running on the PC - this is using our automation DLL that is included with the HSDC Pro installation.

There are no housings provided for EMI, as these are meant as device evaluation boards.

For University discounts please work with the local sales office.  This is not something we are involved with on the applications support team.

Ken

Dear Ken, 

if the TSW-Boards do not offer a FPGA I can program a FFT with, do you have any other FPGA-boards I can attach the ADCs and DACs (simultaneously) to? Or does the ADC have already any other means of filtering frequencies built in?

Cheers, 

Mark