at TA = 25°C, AVDD = 3.3 V, IOVDD = 3.3
V, fIN = 1-kHz sinusoidal signal, fS = 48 kHz, PDMCLKx = 64 ×
fS, 32-bit audio data, BCLK = 256 × fS, TDM slave mode,
PLL on, and linear phase decimation filter (unless otherwise noted); all performance
measurements are done with a 20-kHz, low-pass filter and an A-weighted filter
(unless otherwise noted); all measurements are done by feeding the device PDM
digital input signal using audio precision
| 5th-order PDM modulator with PDMCLKx = 3.072
MHz |
Figure 6-4 THD+N
vs Input Amplitude
| 5th-order PDM modulator with PDMCLKx = 3.072
MHz |
Figure 6-6 Frequency Response With a –20-dBr Input
| 4th-order PDM modulator with PDMCLKx = 3.072
MHz |
Figure 6-8 THD+N
vs Input Amplitude
| 4th-order PDM modulator with PDMCLKx = 3.072
MHz |
Figure 6-10 Frequency Response With a –20-dBr Input
| 4th-order PDM modulator with PDMCLKx = 1.536
MHz |
Figure 6-12 THD+N
vs Input Amplitude
| 4th-order PDM modulator with PDMCLKx = 1.536
MHz |
Figure 6-14 Frequency Response With a –20-dBr Input
| 4th-order PDM modulator with PDMCLKx = 6.144
MHz |
Figure 6-16 THD+N
vs Input Amplitude
| 4th-order PDM modulator with PDMCLKx = 6.144
MHz |
Figure 6-18 Frequency Response With a –20-dBr Input
| 5th-order PDM modulator with PDMCLKx = 3.072
MHz |
Figure 6-5 THD+N
vs Input Frequency With a –20-dBr Input
| 5th-order PDM modulator with PDMCLKx = 3.072
MHz |
Figure 6-7 FFT
With a –60-dBr Input
| 4th-order PDM modulator with PDMCLKx = 3.072
MHz |
Figure 6-9 THD+N
vs Input Frequency With a –20-dBr Input
| 4th-order PDM modulator with PDMCLKx = 3.072
MHz |
Figure 6-11 FFT
With a –60-dBr Input
| 4th-order PDM modulator with PDMCLKx = 1.536
MHz |
Figure 6-13 THD+N
vs Input Frequency With a –20-dBr Input
| 4th-order PDM modulator with PDMCLKx = 1.536
MHz |
Figure 6-15 FFT
With a –60-dBr Input
| 4th-order PDM modulator with PDMCLKx = 6.144
MHz |
Figure 6-17 THD+N
vs Input Frequency With a –20-dBr Input
| 4th-order PDM modulator with PDMCLKx = 6.144
MHz |
Figure 6-19 FFT
With a –60-dBr Input