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of PUI Audio Inc. is prohibited.

©2019, PUI Audio Inc.

PUI Audio, Inc., 3541 Stop Eight Road, Dayton, OH 45414

Tel: (937) 415-5901 Fax: (937) 415-5925

Data Sheet

PNM-3550L-C3310-R

PUI Audio’s noise-canceling microphones are designed with dipole inlets on the

back of the microphone capsule to reduce background noise from wind and the

road for the clearest possible pickup of a user’s voice—especially when used in

automotive applications.

The frequency response of the microphone is exceptionally flat when placed

2.54cm from the acoustic source, but rolls-off at 2 to 5 dB/octave when placed

50cm away from the acoustic source.

Features:

•

6mm diameter

•

3.5mm height

•

-50 dB sensitivity @ 50cm

•

>52 dB signal-to-noise ratio

•

Reduces the effect of wind and road noise

•

Integrated 33pF and 10pF buzz-blocking capacitors reduce GSM noise

Specifications

Parameters

Values

Units

Sensitivity (1 kHz @ 50cm)

0 dB=1V/Pa

-50 ±3

dB

Rated Voltage

2

VDC

Output Impedance (@ 1 kHz)

0.68

kΩ

Current consumption

(3VS with 2.2 kΩ RL)

500

µA

Signal-to-Noise Ratio

(1kHz, 94 dB input, A-weighted)

>55

dB

Decreasing Voltage (2VS to 1.5VS)

-3

dB

Frequency Range (@ 2.54cm)

20 ~ 20,000

Hz

Frequency Range (@ 50cm, -10 dB)

250 ~ 20,000

Hz

Operating Voltage Range

1 ~ 10

VDC

Maximum SPL Input (THD<3%)

110

dB

Directivity

Dipole

-

Operating Temperature

-20 ~ +60

°C

Storage Temperature

-40 ~ +70

°C

Weight

<0.3

Grams