Sampling mode: 32-bit, 44 kHz - 16bit samples
Compare WM8994 using external Tegra2 audio clock with tuned FLL in Voodoo Sound
Tegra2 audio clock is unstable and generate jitter, resulting in higher THD and IMD
Demonstrated in this graph:
| Test | Galaxy Tab 10.1 Voodoo experimental +2dB | Galaxy Tab 10.1 Voodoo experimental +2dB DAC Direct | Galaxy Tab 10.1 Voodoo experimental +2dB DAC Direct 128x | Nexus S Voodoo Sound +2dB DAC Direct 128x Anti Jitter |
| Frequency response (from 40 Hz to 15 kHz), dB: | +0.01, -0.04 | +0.01, -0.04 | +0.01, -0.04 | +0.02, -0.04 |
| Noise level, dB (A): | -95.6 | -95.8 | -96.2 | -96.6 |
| Dynamic range, dB (A): | 95.4 | 95.7 | 96.0 | 96.4 |
| THD, %: | 0.015 | 0.013 | 0.017 | 0.0085 |
| IMD + Noise, %: | 0.016 | 0.014 | 0.017 | 0.012 |
| Stereo crosstalk, dB: | -94.7 | -93.5 | -95.1 | -93.6 |
