at T_A = 25°C, AVDD = 3.3 V, IOVDD = 3.3 V, f_IN = 1-kHz sinusoidal signal, f_S = 48 kHz, PDMCLKx = 64 × f_S, 32-bit audio data, BCLK = 256 × f_S, 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