at TA = 25°C, AVDD = 3.3 V,
IOVDD = 3.3 V, BSTVDD = 3.3 V, fIN = 1-kHz sinusoidal signal, fS = 48
kHz, 32-bit audio data, BCLK = 256 × fS, TDM slave mode, PLL on, channel
gain = 0 dB, linear phase decimation filter, and MICBIAS programmed voltage = 8 V
(unless otherwise noted); all performance measurements are done by feeding the device analog input and PDM digital
input signal using audio precision with a 20-kHz, low-pass filter and an
A-weighted filter (unless otherwise noted)
![THD+N
vs Input Amplitude GUID-C0CFCB4B-6D5B-4779-8A59-102B1D40BE8E-low.gif](/ods/images/SBASA30/GUID-C0CFCB4B-6D5B-4779-8A59-102B1D40BE8E-low.gif)
AC-coupled differential line input |
Figure 7-5 THD+N
vs Input Amplitude![THD+N
vs Input Frequency With a –1-dBr Input (non
A-weighted) GUID-C5AF0F27-2F90-4EFB-9931-4AC4FCA80CAA-low.gif](/ods/images/SBASA30/GUID-C5AF0F27-2F90-4EFB-9931-4AC4FCA80CAA-low.gif)
AC-coupled differential line input |
Figure 7-7 THD+N
vs Input Frequency With a
–1-dBr Input (non
A-weighted)![FFT
With Idle Input (non A-weighted) GUID-AA2CD767-24C0-4803-8451-0A1F1831027F-low.gif](/ods/images/SBASA30/GUID-AA2CD767-24C0-4803-8451-0A1F1831027F-low.gif)
AC-coupled differential line input |
Figure 7-9 FFT
With Idle Input (non A-weighted)![THD+N
vs Input Amplitude GUID-B689BE5F-3BDB-4327-BA57-CBE94BF4D6CF-low.gif](/ods/images/SBASA30/GUID-B689BE5F-3BDB-4327-BA57-CBE94BF4D6CF-low.gif)
DC-coupled differential microphone input with DC
common-mode 1NxP = 6 V and INxM = 2 V, high swing mode
enabled |
Figure 7-11 THD+N
vs Input Amplitude![THD+N
vs Input Frequency With a –15-dBr Input (non
A-weighted) GUID-20201213-CA0I-GZJX-XRLF-PKHSSBZHK8MR-low.svg](/ods/images/SBASA30/GUID-20201213-CA0I-GZJX-XRLF-PKHSSBZHK8MR-low.svg)
DC-coupled differential microphone input with DC
common-mode 1NxP = 6 V and INxM = 2 V, High swing mode
enabled |
Figure 7-13 THD+N
vs Input Frequency With a
–15-dBr Input (non
A-weighted)![FFT
With Idle Input (non A-weighted) GUID-DF592B4F-569E-4268-B1DE-BA940D3EFAAA-low.gif](/ods/images/SBASA30/GUID-DF592B4F-569E-4268-B1DE-BA940D3EFAAA-low.gif)
DC-coupled differential microphone input with DC
common-mode 1NxP = 6 V and INxM = 2 V, high swing mode
enabled |
Figure 7-15 FFT
With Idle Input (non A-weighted)![Power-Supply Rejection Ratio vs Ripple Frequency With 1-VPP
Amplitude GUID-E407B395-629E-4A49-8E44-FCB527D460A9-low.gif](/ods/images/SBASA30/GUID-E407B395-629E-4A49-8E44-FCB527D460A9-low.gif)
AC-coupled differential line input |
|
Figure 7-17 Power-Supply Rejection Ratio vs Ripple Frequency With 1-VPP
Amplitude![MICBIAS Load Regulation vs MICBIAS Load Current GUID-566EFD8C-BD4C-42DF-9361-3687D42E3A8F-low.gif](/ods/images/SBASA30/GUID-566EFD8C-BD4C-42DF-9361-3687D42E3A8F-low.gif)
DC-coupled differential microphone input |
Figure 7-19 MICBIAS Load Regulation vs MICBIAS Load Current![THD+N vs Input
Amplitude GUID-20201213-CA0I-NFHJ-W1WJ-BGBHC0V24NX1-low.svg](/ods/images/SBASA30/GUID-20201213-CA0I-NFHJ-W1WJ-BGBHC0V24NX1-low.svg)
4th-order PDM modulator with PDMCLKx = 3.072
MHz |
Figure 7-21 THD+N vs Input
Amplitude![FFT With a –60-dBFS Input
(non A-weighted) GUID-20201213-CA0I-DK4T-9FS9-TCHVVB6BXMLC-low.svg](/ods/images/SBASA30/GUID-20201213-CA0I-DK4T-9FS9-TCHVVB6BXMLC-low.svg)
4th-order PDM modulator with PDMCLKx = 3.072
MHz |
Figure 7-23 FFT With a –60-dBFS Input
(non A-weighted)![THD+N
vs Input Amplitude GUID-56D7FE58-BC1E-44E0-8FB4-8ACFB9DBCBC1-low.gif](/ods/images/SBASA30/GUID-56D7FE58-BC1E-44E0-8FB4-8ACFB9DBCBC1-low.gif)
AC-coupled single-ended line input |
Figure 7-6 THD+N
vs Input Amplitude![THD+N
vs Input Frequency With a –1-dBr Input (non
A-weighted) GUID-0A4E5B9C-FA51-4658-BDC2-250C64A324DD-low.gif](/ods/images/SBASA30/GUID-0A4E5B9C-FA51-4658-BDC2-250C64A324DD-low.gif)
AC-coupled single-ended line input |
Figure 7-8 THD+N
vs Input Frequency With a
–1-dBr Input (non
A-weighted)![FFT
With a –60-dBr Input (non A-weighted) GUID-87A12D29-E693-4A56-9163-17ECA9BFECA5-low.gif](/ods/images/SBASA30/GUID-87A12D29-E693-4A56-9163-17ECA9BFECA5-low.gif)
AC-coupled differential line input |
Figure 7-10 FFT
With a –60-dBr Input (non A-weighted)![THD+N
vs Input Amplitude GUID-B2CCAE36-71A8-488E-9C60-E2EAC628E98A-low.gif](/ods/images/SBASA30/GUID-B2CCAE36-71A8-488E-9C60-E2EAC628E98A-low.gif)
DC-coupled single-ended microphone input with DC
common-mode 1NxP = 4 V and INxM = 0 V, high swing mode
enabled |
Figure 7-12 THD+N
vs Input Amplitude![THD+N
vs Input Frequency With a –15-dBr Input (non
A-weighted) GUID-20201213-CA0I-HXLX-PC3L-0H3F741PW7B1-low.svg](/ods/images/SBASA30/GUID-20201213-CA0I-HXLX-PC3L-0H3F741PW7B1-low.svg)
DC-coupled single-ended microphone input with DC
common-mode 1NxP = 4 V and INxM = 0 V, high swing mode
enabled |
Figure 7-14 THD+N
vs Input Frequency With a
–15-dBr Input (non
A-weighted)![FFT
With a –60-dBr Input (non A-weighted) GUID-3ACBA788-5856-499E-8E70-5E43EB23BFE2-low.gif](/ods/images/SBASA30/GUID-3ACBA788-5856-499E-8E70-5E43EB23BFE2-low.gif)
DC-coupled differential microphone input with DC
common-mode 1NxP = 6 V and INxM = 2 V, high swing mode
enabled |
Figure 7-16 FFT
With a –60-dBr Input (non A-weighted)![Power-Supply Rejection Ratio vs Ripple Frequency With 1-VPP
Amplitude GUID-0589B36E-1D45-4A58-8B69-857578CD43FE-low.gif](/ods/images/SBASA30/GUID-0589B36E-1D45-4A58-8B69-857578CD43FE-low.gif)
DC-coupled differential microphone input with DC
common-mode 1NxP = 6 V and INxM = 2 V, high swing mode
enabled |
Figure 7-18 Power-Supply Rejection Ratio vs Ripple Frequency With 1-VPP
Amplitude![Boost
Efficiency vs MICBIAS Load Current GUID-5CE22981-BF57-4A4A-A770-A5043C98D150-low.gif](/ods/images/SBASA30/GUID-5CE22981-BF57-4A4A-A770-A5043C98D150-low.gif)
DC-coupled differential microphone input with DC
common-mode 1NxP = 6 V and INxM = 2 V, high swing mode
enabled |
Figure 7-20 Boost
Efficiency vs MICBIAS Load Current![THD+N vs Input Frequency
With a –20-dBFS Input GUID-20201213-CA0I-RS2V-HJDP-61MHMT4TLSNK-low.svg](/ods/images/SBASA30/GUID-20201213-CA0I-RS2V-HJDP-61MHMT4TLSNK-low.svg)
4th-order PDM modulator with PDMCLKx = 3.072
MHz |
Figure 7-22 THD+N vs Input Frequency
With a –20-dBFS Input![Amplitude Response With a
–20-dBFS Input GUID-20201213-CA0I-8WXF-3KJH-48PLFW2SZNG9-low.svg](/ods/images/SBASA30/GUID-20201213-CA0I-8WXF-3KJH-48PLFW2SZNG9-low.svg)
4th-order PDM modulator with PDMCLKx = 3.072
MHz |
Figure 7-24 Amplitude Response With a
–20-dBFS Input