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PUI Audio, Inc. A Projects Unlimited Company, 3541 Stop Eight Road, Dayton, OH 45414

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Data Sheet

TOM-1537L-HD-R

PUI Audio’s all-new HD Series microphones use premium-grade FETs and

diaphragms for high sensitivity and superior signal-to-noise ratio. Each

microphone features GSM buzz-blocking capacitors. Upgrade the ECM

microphone that you use today with a PUI Audio HD Series microphone.

The 4mm diameter TOM-1537L-HD-R is designed for extreme fidelity, from 20

Hz to 20 kHz, in the smallest ECM package that PUI Audio has offered to date.

Features:

•

4mm diameter

•

1.5mm height

•

-37 dB sensitivity

•

68 dB signal-to-noise ratio

•

True 20 Hz to 20 kHz performance

Specifications

Parameters

Values

Units

Sensitivity (1 kHz @ 50cm)

0 dB=1V/Pa

-37 ±3

dB

Rated Voltage

2

VDC

Output Impedance (@ 1 kHz)

2.2

kΩ

Current consumption

(2VS with 2.2 kΩ RL)

500

µA

Signal-to-Noise Ratio

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

68

dB

Decreasing Voltage (2VS to 1.5VS)

-3

dB

Frequency Range

20 ~ 20,000

Hz

Operating Voltage Range

1 ~ 10

VDC

Maximum SPL Input (THD<3%)

110

dB

Directivity

Omni-directional

-