SPM0423HD4H-WB
1.
ABSOLUTE MAXIMUM RATINGS
Parameter
V
DD
, DATA to Ground
CLOCK to Ground
SELECT to Ground
Input Current
Short Circuit Current to/from DATA
Temperature Range
Absolute Maximum Rating
-0.3, +5.0
-0.3, +5.0
-0.3, +5.0
±5
Indefinite to Ground or V
DD
-40 to +100
Units
V
V
V
mA
sec
°C
Stresses exceeding these “Absolute Maximum Ratings” may cause permanent damage to the device. These are
stress ratings only. Functional operation at these or any other conditions beyond those indicated under “Acoustic
& Electrical Specifications” is not implied. Exposure beyond those indicated under “Acoustic & Electrical
Specifications” for extended periods may affect device reliability.
2.
ACOUSTIC & ELECTRICAL SPECIFICATIONS
TEST CONDITIONS: 23 ±2°C, 55±20% R.H., V
DD
=1.8 V, F
CLOCK
=2.4 MHz, SELECT pin grounded, no load,
unless otherwise indicated
Parameter
Supply Voltage
1
Supply Current
1,2,3
Sleep Current
3
Sensitivity
1
Signal to Noise Ratio
Total Harmonic
Distortion
Acoustic Overload
Point
DC Output
Directivity
Polarity
Data Format
Logic Input High
Logic Input Low
Logic Output High
Logic Output Low
V
IH
V
IL
V
OH
V
OL
I
OUT
= 1 mA
I
OUT
= 1 mA
0.65xV
DD
-0.3
0.65xV
DD
0
Increasing sound pressure
Symbol
V
DD
I
DD
I
SLEEP
S
SNR
THD
AOP
F
CLOCK
< 1 kHz
94 dB SPL @ 1 kHz
94 dB SPL @ 1 kHz, A-weighted
94 dB SPL @ 1 kHz, S = Typ
10% THD @ 1 kHz, S = Typ
Fullscale = ±100
Conditions
Min
1.6
-
-
-29
-
-
115
-
Typ
-
500
25
-26
56
-
-
4
Max
3.6
600
50
-23
-
1
-
-
Units
V
µA
µA
dBFS
dB(A)
%
dB
SPL
% FS
Omnidirectional
Decreasing density of 1’s
½ Cycle PDM
-
-
-
-
3.6
0.35xV
DD
V
DD
0.35xV
DD
V
V
V
V
Revision: C
Sheet 2 of 13
2/28/2013
©2013 Knowles Electronics
KNOWLES [ KNOWLES ELECTRONICS ]
