spm0423hm4h-wb Knowles Electronics, spm0423hm4h-wb Datasheet - Page 3

• Manufacturer Part Number: spm0423hm4h-wb
• Description: Digital Mini Sisonictm Microphone Specification - Halogen Free With Enhanced Rf Protection
• Manufacturer: Knowles Electronics

1
TEST CONDITIONS: 23 ±2°C, 60‐70% R.H., V
unless otherwise specified
Delay Time for Valid Data
5. ACOUSTIC & ELECTRICAL SPECIFICATIONS
Total Harmonic Distortion
Logic Input/Output High
100% tested
Logic Input/Output Low
Current Consumption
Signal to Noise Ratio
Delay time for High Z
Short Circuit Output
Parameter
Clock Duty Cycle
Clock Frequency f
Standby Current
Supply Voltage
Fall-asleep Time
Clock Rise Time
Clock Fall Time
Wake-up Time
(sleep mode)
Output Load C
Data Format
Sensitivity
Directivity
+ Noise
Current
Polarity
1
1
1
Symbol
THD+N
I
STANDBY
V
V
SNR
Knowles Acoustics, a division of Knowles Electronics, LLC.
V
clock
t
I
t
I
LOAD
t
t
DD
IOH
SC
IOL
dv
S
dz
DD
cr
cf
94 dB SPL @ 1kHz, A-weighted
Increasing sound pressure
Grounded output pin
DD
100 dB SPL @ 1kHz
115 dB SPL @ 1kHz
94 dB SPL @ 1kHz
(min) ≤ V
f
f
f
clock
Condition
clock
clock
I
I
out
out
= 1ma
= 1ma
≥ 1MHz
< 1kHz
< 1kHz
DD
≤ V
DD
(max), f
clock
0.65xV
SPM0423HM4H-WB
Min.
-0.3
1.6
-29
1.0
40
18
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=2.4MHz, no load,
0
Decreasing density of 1's
DD
Omni-directional
1/2 Cycle PDM
Nom.
Limits
-26
25
56
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1
Revision: B
Release Level: ACTIVE
Sheet 3 of 11
0.35xV
V
DD
Max.
3.25
600
100
3.6
-23
50
10
10
10
10
60
10
10
60
16
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1
+0.3
DD
dB(A)
msec
msec
dBFS
nsec
nsec
nsec
nsec
MHz
Unit
mA
µA
µA
pF
%
%
%
V
V
V