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Newbie basumh@lnt
Newbie
4,266 Views
Registered: ‎01-10-2017

Internal DAC

Is "Artix 7 - XC7A35TFGG484-2L" has internal DAC? if not which Xilinx devices have ? 

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3 Replies
Scholar austin
Scholar
4,236 Views
Registered: ‎02-27-2008

Re: Internal DAC

No internal digital to analog converters built in (yet),

 

 

 

 

Austin Lesea
Principal Engineer
Xilinx San Jose
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Xilinx Employee
Xilinx Employee
4,222 Views
Registered: ‎09-05-2007

Re: Internal DAC

An FPGA offers huge potential to implement pulse width modulation (PWM) which can be used in conjunction with a simple smoothing circuit to perform D/A conversion. Pulse repetition frequency (PRF) and resolution can be whatever you want them to be providing the product of these two parameters falls within the clock frequency that the device can service (e.g. 8-bit input corresponds with 256 steps in duty cycle so a PRF of 1MHz would require a 256MHz clock). I've even heard of people using the high speed transceivers to implement extremely high PRF.

 

 

Ken Chapman
Principal Engineer, Xilinx UK
Teacher drjohnsmith
Teacher
4,177 Views
Registered: ‎07-09-2009

Re: Internal DAC

Its a bit old, but this might be of interest

 

https://www.xilinx.com/support/documentation/ip_documentation/xps_deltasigma_dac.pdf

 

 

 

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