DFG-30445-000 Knowles Acoustics, DFG-30445-000 Datasheet - Page 7

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DFG-30445-000

Manufacturer Part Number
DFG-30445-000
Description
MIC SUPER CARTOID UNI DIRECT FG
Manufacturer
Knowles Acoustics
Series
DFGr
Type
Electret Condenserr
Datasheets

Specifications of DFG-30445-000

Sensitivity
-69dB ±4dB
Voltage - Rated
1.3V
Current
50µA
Size / Dimension
Circular - 2.56mm Dia x 2.69mm H
S/n Ratio
-
Filter Type
13pF
Impedance
1.7K Ohm
Frequency
100Hz ~ 5kHz
Termination
Solder Pads
Direction
Unidirectional
Port Location
Bottom and Top
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
423-1150
Specialty Transducer Microphones
The Specialty Transducer (ST) product line consists of miniature microphones,
speakers, and assemblies. Hundreds of design possibilities can be applied to
your product challenge with our high-performance microphone designs. Ideal for
new product ideas that require premium audio and very small form factors,
solutions include noise canceling, omni-directional and unidirectional performance.
Other variables include size, shape, amplification, sensitivity, low noise, and
resistance to vibration and mechanical shock.
ST components and assemblies are unique in fit, form and function. Our products
are designed into high value applications in markets such as the following:
GA SERIES
Omni-Directional 2.00 x 2.00 x 4.00 (mm)
The GA Series Microphone is a brand new microphone design with
unique size and shape. Its elongated 2mm x 2mm x 4mm dimensions
are ideal for directional applications, allowing you ultimate flexibility in
terminal pad area placement. And the GA is using the new '38' circuit
providing excellent sensitivity and noise performance for package size.
The GA targets space efficiency in BTE and ITE designs; BTE: End-to-end
configuration provides 8mm spacing for directionality while ITE: 20%
smaller cross sectional area than FG Series.
Note: All performance curves are typical
military, surveillance
Communications – headsets, handsets, earpieces, telephony, voice recognition, emergency services,
Pro audio – in-ear speakers, lapel microphones, boom microphones
Medical and more – sensors, audiometers, medical implants
Model
GA38-30774-000
GA38-30775-000
GA38-30776-000
– Microphone
Sensitivity @ 1kHz
(dB re1V/0.1Pa)
-53.0±3
-53.0±3
-53.0±3
Compact size providing superior fit rates (2mm x 2mm x 4mm)
Excellent sensitivity and noise performance for package
Integral RFI suppression
Exceptionally low vibration sensitivity
Multiple acoustic port placement versions
DC Supply (Vdc)
1.3 nom. 1.6 max
1.3 nom. 1.6 max
1.3 nom. 1.6 max
Current Drain (uA)
SPECIALTY TRANSDUCERS – Microphones
Max. Amplifier
www.knowles.com
25
25
25
Max. “A” Weighted
Equivalent SPL)
Noise (1 kHz
-40dB
-45
-50
-55
-60
-65
-70
-75
-80
24.0 dB
25.0 dB
25.0 dB
20
3
4
5 6 7 8 9
100
Impedance (Ohms)
Nominal Output
4400
4400
4400
2
3
4
FREQUENCY (Hz)
5 6 7 8 9
1k
Tubeless, Port on Bottom,
Terminal Pads on Cover
(0.8mm x 0.74mm ID),
Tubeless, Port on End,
Terminal Pads on End
Terminal Pads on End
2
Tube Version
Comments
3
4
5 6 7 8 9
10k
2
7

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