Benchmark DAC1 USB - FFT Analysis of Idle Channel Noise

DAC1 USB Instruction Manual Revision D Page 26
FFT Analysis of Idle Channel Noise
The above graph demonstrates that the DAC1 is free from idle tones and clock crosstalk. The
highest spurious tone measures –128 dBFS and is AC line related hum. The highest non-line
related tone measures –138 dBFS.