Datasheet T3902 (TDK) - 5
| Fabricante | TDK |
| Descripción | Bottom Port PDM Low‐Power Multi‐Mode Microphone With High AOP Mode |
| Páginas / Página | 22 / 5 — T3902. TABLE 3. ACOUSTICAL/ELECTRICAL CHARACTERISTICS – STANDARD MODE . … |
| Formato / tamaño de archivo | PDF / 446 Kb |
| Idioma del documento | Inglés |
T3902. TABLE 3. ACOUSTICAL/ELECTRICAL CHARACTERISTICS – STANDARD MODE . PARAMETER . CONDITIONS . MIN . TYP . MAX . UNITS . NOTES
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T3902
TABLE 3. ACOUSTICAL/ELECTRICAL CHARACTERISTICS – STANDARD MODE
TA = 25°C, VDD = 1.8 to 3.3 V, SCK = 2.4 MHz, 50× decimation, CLOAD = 30 pF unless otherwise noted. Typical specifications are not guaranteed.
PARAMETER CONDITIONS MIN TYP MAX UNITS NOTES
Sensitivity 1 kHz, 94 dB SPL −27 −26 −25 dB FS 1, 2 Signal‐to‐Noise Ratio (SNR) 20 kHz bandwidth, A‐weighted 64.5 dBA Equivalent Input Noise (EIN) 20 kHz bandwidth, A‐weighted 29.5 dBA SPL Dynamic Range Derived from EIN and AOP 90.5 dB Low frequency −3 dB point 36 Hz 3 Total Harmonic Distortion (THD) 105 dB SPL 0.2 1 % Power Supply Rejection (PSR) 217 Hz, 100 mV p‐p square wave superimposed on VDD = 1.8 V, A‐ −97 dB FS weighted Power Supply Rejection—Swept 1 kHz sine wave −104 dB FS Sine Acoustic Overload Point 10% THD 120 dB SPL Full‐Scale Acoustic Level 0 dB FS output 120 dB SPL Supply Current (IS) VDD = 1.8 V, no load 430 500 µA
Note 1:
Sensitivity is relative to the RMS level of a sine wave with positive amplitude equal to 100% 1s density and negative amplitude equal to 0% 1s density.
Note 2:
The sensitivity shall not deviate more than 1.0 dB from its initial value after reliability tests.
Note 3:
See See Figure 4.
TABLE 4. ACOUSTICAL/ELECTRICAL CHARACTERISTICS – LOW‐POWER MODE
TA = 25°C, VDD = 1.8 to 3.3 V, SCK = 768 kHz, 50× decimation, CLOAD = 30 pF unless otherwise noted. Typical specifications are not guaranteed.
PARAMETER CONDITIONS MIN TYP MAX UNITS NOTES
Sensitivity 1 kHz, 94 dB SPL −27 −26 −25 dB FS 1, 2 Signal‐to‐Noise Ratio (SNR) 8 kHz bandwidth, A‐weighted 63 dBA Equivalent Input Noise (EIN) 8 kHz bandwidth, A‐weighted 31 dBA SPL Dynamic Range Derived from EIN and AOP 89 dB Low frequency −3 dB point 36 Hz 3 Total Harmonic Distortion (THD) 105 dB SPL 0.2 1 % Power Supply Rejection (PSR) 217 Hz, 100 mV p‐p square wave superimposed on VDD = 1.8 V, A‐ −97 dB FS weighted Power Supply Rejection—Swept 1 kHz sine wave −98 dB FS Sine Acoustic Overload Point 10% THD 120 dB SPL Full‐Scale Acoustic Level 0 dB FS output 120 dB SPL Supply Current (IS) VDD = 1.8 V, no load 185 225 µA
Note 1:
Sensitivity is relative to the RMS level of a sine wave with positive amplitude equal to 100% 1s density and negative amplitude equal to 0% 1s density.
Note 2:
The sensitivity shall not deviate more than 1.0 dB from its initial value after reliability tests.
Note 3:
See Figure 4.
Page 5 of 22 Document Number: DS‐000357 Revision: 1.0
TABLE 3. ACOUSTICAL/ELECTRICAL CHARACTERISTICS – STANDARD MODE
TA = 25°C, VDD = 1.8 to 3.3 V, SCK = 2.4 MHz, 50× decimation, CLOAD = 30 pF unless otherwise noted. Typical specifications are not guaranteed.
PARAMETER CONDITIONS MIN TYP MAX UNITS NOTES
Sensitivity 1 kHz, 94 dB SPL −27 −26 −25 dB FS 1, 2 Signal‐to‐Noise Ratio (SNR) 20 kHz bandwidth, A‐weighted 64.5 dBA Equivalent Input Noise (EIN) 20 kHz bandwidth, A‐weighted 29.5 dBA SPL Dynamic Range Derived from EIN and AOP 90.5 dB Low frequency −3 dB point 36 Hz 3 Total Harmonic Distortion (THD) 105 dB SPL 0.2 1 % Power Supply Rejection (PSR) 217 Hz, 100 mV p‐p square wave superimposed on VDD = 1.8 V, A‐ −97 dB FS weighted Power Supply Rejection—Swept 1 kHz sine wave −104 dB FS Sine Acoustic Overload Point 10% THD 120 dB SPL Full‐Scale Acoustic Level 0 dB FS output 120 dB SPL Supply Current (IS) VDD = 1.8 V, no load 430 500 µA
Note 1:
Sensitivity is relative to the RMS level of a sine wave with positive amplitude equal to 100% 1s density and negative amplitude equal to 0% 1s density.
Note 2:
The sensitivity shall not deviate more than 1.0 dB from its initial value after reliability tests.
Note 3:
See See Figure 4.
TABLE 4. ACOUSTICAL/ELECTRICAL CHARACTERISTICS – LOW‐POWER MODE
TA = 25°C, VDD = 1.8 to 3.3 V, SCK = 768 kHz, 50× decimation, CLOAD = 30 pF unless otherwise noted. Typical specifications are not guaranteed.
PARAMETER CONDITIONS MIN TYP MAX UNITS NOTES
Sensitivity 1 kHz, 94 dB SPL −27 −26 −25 dB FS 1, 2 Signal‐to‐Noise Ratio (SNR) 8 kHz bandwidth, A‐weighted 63 dBA Equivalent Input Noise (EIN) 8 kHz bandwidth, A‐weighted 31 dBA SPL Dynamic Range Derived from EIN and AOP 89 dB Low frequency −3 dB point 36 Hz 3 Total Harmonic Distortion (THD) 105 dB SPL 0.2 1 % Power Supply Rejection (PSR) 217 Hz, 100 mV p‐p square wave superimposed on VDD = 1.8 V, A‐ −97 dB FS weighted Power Supply Rejection—Swept 1 kHz sine wave −98 dB FS Sine Acoustic Overload Point 10% THD 120 dB SPL Full‐Scale Acoustic Level 0 dB FS output 120 dB SPL Supply Current (IS) VDD = 1.8 V, no load 185 225 µA
Note 1:
Sensitivity is relative to the RMS level of a sine wave with positive amplitude equal to 100% 1s density and negative amplitude equal to 0% 1s density.
Note 2:
The sensitivity shall not deviate more than 1.0 dB from its initial value after reliability tests.
Note 3:
See Figure 4.
Page 5 of 22 Document Number: DS‐000357 Revision: 1.0