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basumh@lnt
Newbie
Newbie
4,409 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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austin
Scholar
Scholar
4,379 Views
Registered: ‎02-27-2008

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

 

 

 

 

Austin Lesea
Principal Engineer
Xilinx San Jose
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chapman
Xilinx Employee
Xilinx Employee
4,365 Views
Registered: ‎09-05-2007

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
drjohnsmith
Teacher
Teacher
4,320 Views
Registered: ‎07-09-2009

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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