Acoustic products

OWMU-1669T-44

ECM microphone

OWMU-1669T-44
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Characteristics

Size (ØxH) [mm]
16.0x6.9
Size (LxWxH) [mm]
0.0x0.0x6.9
Type
Ecm
Sensitivity [dBV/Pa]
-44
Typical SNR [dBA]
0
Directivity
Uni
Termination
Lead wires
or solder terminals
Impedance [kΩ]
0
Current consumption [µA]
< 0
Decreasing Voltage [V]
0.0 to 0.0
output reduction <=3dB
Voltage range [V]
0.0 to 0.0
Acoustic overload point [dB]
< 120
at 3% THD
Operating temp. range [C°]
 0 to ~ 0

Specifications are subject to change without prior notice. Upon request Ole Wolff can supply further specifications, simulation parameters etc.

Mechanical drawing

OWMU-1669T-44

Info & application support

Updated 02-08-2024 11:42

Additional characteristics



Sleep mode


Test conditions (unless otherwise specified in the table): VDD= 1.8V, fclock= 350kHz, values: TA= 25°C. Max/min values: TA= -20°C to 70°C.

Specification

Symbol

Test Conditions

Min.

Typ.

Max.

Unit

Clock Frequency

Fc

350

kHz

Current Consumption

I

Fclk=0kHz

1

uA

Current Consumption

I

Fclk=350kHz

50

uA




General microphone specification(Test condition: Vdd=1.8V, Fclk=2.4MHz)


Specification

Symbol

Test Conditions

Min.

Typ.

Max.

Unit

Supply Voltage

Vdd

1.62

1.8

3.6

V

Low Frequency rolloff

LFRO

-3dB relative to 1kHz

32

Hz

High Frequency Flatness

+3dB relative to 1kHz

15

kHz

DC Output

Full scale=±100

-

0

-

%FS

Polarity

Increasing sound Pressure

Increasing density of 1’s

Data Format

½ Cycle PDM

Short Output Current

Isc

DATA PIN Short to GND

1

20

mA

Output Load

Cload

150

pF

Fall Asleep Time

Tslp

Fclk< 350kHz

20

us

Wake-up Time

Twk

Fclk> 350 kHz

20

ms

Power Up Time

Tpu

Time to start up in any mode after VDD off for

>10ms, CLOCK

remained on.

20

ms

Start time

Time to start up in any mode after VDD

and CLOCK applied.

50

ms

Mode Change Time

Tmc

Time to switch between modes. VDD remains on.

20

us




Ole Wolff Elektronik A/S | Roedengvej 14, 4180 Soroe, DK Denmark | +45 5783 3830 | sales@owolff.com