TDK T5919, Руководство пользователя, Страница: 4 / 22

T5919
Page 4 of 22
Document Number: DS-000363
Revision: 1.0
SPECIFICATIONS
TABLE 1. ACOUSTICAL/ELECTRICAL CHARACTERISTICS – GENERAL
T
A
= 25°C, VDD = 1.8 V, SCK = 2.4 MHz, C
LOAD
= 30 pF unless otherwise noted. Typical specifications are not guaranteed.
PARAMETER CONDITIONS MIN TYP MAX UNITS NOTES
PERFORMANCE
Directionality Omni
Output Polarity Input acoustic pressure vs. output
data
Non-Inverted
Supply Voltage (V
DD
) 1.65 1.8 1.98 V
Sleep Mode Current (I
S
) SCK < 200 kHz 9 µA
TABLE 2. ACOUSTICAL/ELECTRICAL CHARACTERISTICS
– HIGH QUALITY MODE
T
A
= 25°C, VDD = 1.8 V, SCK = 2.4 MHz, C
LOAD
= 30 pF unless otherwise noted. Typical specifications are not guaranteed.
PARAMETER CONDITIONS MIN TYP MAX UNITS NOTES
Sensitivity 1 kHz, 94 dB SPL −42 −41 −40 dB FS 1
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
Acoustic Dynamic Range Derived from EIN and acoustic
overload point
105.5 dB
Total Harmonic Distortion (THD) 94 dB SPL 0.15 %
Low Frequency Roll Off -3dB, relative to 1kHz Sensitivity 40 Hz
Power Supply Rejection (PSR) 20 Hz, 100 mVpp applied to V
DD
1 kHz, 100 mVpp applied to V
DD
5 kHz, 100 mVpp applied to V
DD
10 kHz, 100 mVpp applied to V
DD
20 kHz, 100 mVpp applied to V
DD
-89
-116
-93
-98
-87 dB FS(A)
Power Supply Rejection (PSR) 217 Hz, 100 mV p-p square wave
superimposed on VDD = 1.8 V, A-
weighted
-106 dB FS (A)
Power Supply Rejection — Swept Sine 1 kHz sine wave −11 6 dB FS
Acoustic Overload Point 10% THD 135 dB SPL
Supply Current (I
S
) V
DD
= 1.8 V, no load 590 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.