dav_mt
Newbie level 5
DAC INTERFACING
I need some help in interfacing and FPGA to a DSP through a DAC chip. Basically the FPGA is responsible for generating Gaussian noise(that works) and outputting the data word through the board pins(8 pins which I have already selected). These should go into the DAC chip.
Basically I want that the DAC is scaled from -1V to 1V since the noise generation is usually centered around 0V. The circuit I found for the DAC only generates from -2V(FULL SCALE) to 0V(ZERO SCALE). Can anyone suggest an ammendment so that FULL SCALE is at 1V and ZERO SCALE at -1V, or do I need another chip? I am pretty sure that the DAC can be scaled as required.
(Please refer to attached image for current DAC connection)
Thanks in advance
I need some help in interfacing and FPGA to a DSP through a DAC chip. Basically the FPGA is responsible for generating Gaussian noise(that works) and outputting the data word through the board pins(8 pins which I have already selected). These should go into the DAC chip.
Basically I want that the DAC is scaled from -1V to 1V since the noise generation is usually centered around 0V. The circuit I found for the DAC only generates from -2V(FULL SCALE) to 0V(ZERO SCALE). Can anyone suggest an ammendment so that FULL SCALE is at 1V and ZERO SCALE at -1V, or do I need another chip? I am pretty sure that the DAC can be scaled as required.
(Please refer to attached image for current DAC connection)
Thanks in advance
