Nije sve u veličini i količini gvožđa i delova!
Vaš iPhone je 5.000 puta brži od Cray 2 super kompjutera iz 1985-e.
Chord u svojim DAC-ovima koristi FPGA čipove koji su isprogramirani da vrše funkciju DA konverzije i ne zahtevaju isto okruženje kao klasični "off the shelf" čipovi tipa Burr Brown, ESS Sabre, AKM, itd.
Pretpostavljam da je to i razlog za manjak delova na PCB-u!
1. What is an FPGA-based DAC?
An FPGA-based DAC is a digital-to-analog converter that uses a Field-Programmable Gate Array (FPGA) as its core component. An FPGA is a type of programmable logic chip that can be reprogrammed to perform specific functions. In an FPGA-based DAC, the FPGA is programmed to perform the digital-to-analog conversion process. This allows for more flexibility and customization in the conversion process, resulting in higher quality audio output.
2. Advantages of FPGA-based DACs
One of the main advantages of FPGA-based DACs is their flexibility. Since the FPGA can be reprogrammed, it allows for more customization in the conversion process. This means that the audio output can be tailored to the specific needs of the user or application. Additionally, FPGA-based DACs can be updated with new firmware, allowing for improvements in performance and functionality.
Another advantage of FPGA-based DACs is their high precision. The FPGA can perform the digital-to-analog conversion process with a high degree of accuracy, resulting in a more accurate audio output. Additionally, FPGA-based DACs can support a wide range of audio formats and sample rates, making them versatile enough to be used in a variety of applications.
3. Comparison with other DAC options
There are several other options for DACs, including traditional DACs and Sigma-Delta DACs. Traditional DACs use a resistor ladder network to perform the digital-to-analog conversion process, while Sigma-Delta DACs use oversampling and noise-shaping techniques to improve the audio quality. However, FPGA-based DACs offer several advantages over these options.
Compared to traditional DACs, FPGA-based DACs offer more flexibility and precision. The FPGA can be reprogrammed to perform the conversion process in a way that is tailored to the specific needs of the user or application. Additionally, FPGA-based DACs can support a wider range of audio formats and sample rates.
Compared to Sigma-Delta DACs, FPGA-based DACs offer more customization options. While Sigma-Delta DACs use oversampling and noise-shaping techniques to improve the audio quality, they are limited in their flexibility. FPGA-based DACs, on the other hand, can be reprogrammed to perform the conversion process in a way that is tailored to the specific needs of the user or application.