Revision: C

2/28/2013

Sheet 2 of 13

©2013 Knowles Electronics

SPM0423HD4H-WB

1.

ABSOLUTE MAXIMUM RATINGS

Parameter

Absolute Maximum Rating

Units

-0.3, +5.0

V

CLOCK to Ground

-0.3, +5.0

V

SELECT to Ground

-0.3, +5.0

V

Input Current

±5

mA

Short Circuit Current to/from DATA

sec

Temperature Range

-40 to +100

°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

unless otherwise indicated

Parameter

Symbol

Conditions

Min

Typ

Max

Units

Supply Voltage

1

1.6

-

3.6

V

Supply Current

1,2,3

-

500

600

µA

Sleep Current

3

-

25

50

µA

Sensitivity

1

S

94 dB SPL @ 1 kHz

-29

-26

-23

dBFS

Signal to Noise Ratio

SNR

94 dB SPL @ 1 kHz, A-weighted

-

56

-

dB(A)

Total Harmonic

Distortion

THD

94 dB SPL @ 1 kHz, S = Typ

-

-

1

%

Acoustic Overload

Point

AOP

10% THD @ 1 kHz, S = Typ

115

-

-

dB

SPL

DC Output

Fullscale = ±100

-

4

-

% FS

Directivity

Omnidirectional

Polarity

Increasing sound pressure

Decreasing density of 1’s

Data Format

½ Cycle PDM

Logic Input High

-

3.6

V

Logic Input Low

-0.3

-

V

Logic Output High

-

V

Logic Output Low

0

-

V