DFG-30445-000 Knowles Acoustics, DFG-30445-000 Datasheet - Page 9

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

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

EK/EL SERIES
Omni-Directional (EK), Unidirectional (EL) 4.00 x 5.59 x 2.28 (mm)
EK omnidirectional microphones provide a unique combination of size, performance
and value. Its high electroacoustic sensitivity and low noise make this microphone
an excellent choice for applications where space allows. These popular microphones
are available in many model varieties.
NR SERIES
Noise Canceling 4.00 x 5.59 x 2.28 (mm)
The NR Series close talking microphones deliver state-of-the-art noise canceling performance.
NR microphones are used as headset microphones in the most demanding communication
and speech recognition environments. The NR Series microphones are available in boom
microphone packages. (See the Specialty Transducers - Booms & Sensors section for details.)
Note: All performance curves are typical
Model
EK-23024-C36
EK-23024-P07
EK-23027-C36
EK-23028-C36
EK-23033-C36
EK-23132-000
EK-23133-C36
EK-23142-C37
EL-23078-000
Model
NR-23158-000
NR-23159-000
NR-23160-000
NR-25994-000
NR-25994-D63
NR-30610-D63
– Microphone
Sensitivity @ 1kHz
Sensitivity @ 1kHz
– Microphone
(dB re1V/0.1Pa)
(dB re1V/0.1Pa)
-53.0±2
-53.0±2
-53.0±2
-57.0±3
-53.0±2
-53.0±2
-53.0±2
-53.0±2
-53.0±2
-49.0±3
-65.0±3
-52.0±3
-49.0±3
-55.0±4
-59.0±3
•
•
•
•
•
•
•
•
•
•
•
•
Integral FET amplifier
Diaphragm responds to pressure differential giving
high rejection of background noise
Withstands severe environmental conditions
Low vibration sensitivity
High electoacoustical sensitivity
Superior noise canceling performance
Lead attachment available
High resistance to mechanical shock
Available with RFI suppression
Various port locations available
Wide range of frequency responses
High S/N performance
DC Supply (Vdc)
DC Supply (Vdc)
1.3 nom. 10 max
1.3 nom. 10 max
1.3 nom. 10 max
1.3 nom. 10 max
1.3 nom. 10 max
1.3 nom. 10 max
1.3 nom. 10 max
1.3 nom. 10 max
1.3 nom. 10 max
1.3 nom. 10 max
1.3 nom. 10 max
1.3 nom. 10 max
1.3 nom. 10 max
1.3 nom. 10 max
3.0 nom. 10 max
Current Drain (uA)
Current Drain (uA)
SPECIALTY TRANSDUCERS – Microphones
Max. Amplifier
Max. Amplifier
www.knowles.com
200
200
300
550
50
50
50
50
50
50
50
50
50
50
50
* 1kHz Equivalent SPL
“A” Weighted Noise
Max. “A” Weighted
Noise (dBV)
** re 1Vrms
-100.0 dB**
-100.0 dB**
26.0 dB*
26.0 dB*
26.0 dB*
26.0 dB*
26.0 dB*
26.0 dB*
26.0 dB*
-100
-100
-100
-100
-100
-100
-40
-50
-60
-70
-80
Impedance (Ohms)
Impedance (Ohms)
-40
-50
-60
-70
-80
100
Nominal Output
Nominal Output
5 6 7 8 9
4400
4400
4400
4400
4400
4400
4400
4400
4400
4400
2500
2500
4400
2000
2000
100
2
3
2
4
5
3
6 7 8 9
4
FREQUENCY (Hz)
3-Wire, 1 m Shielded Cable
5 6 7 8 9
Dual Port Uni-Directional
6dB/Octave Ski-Slope
Broadband Response
Broadband Response
Broadband Response
1k
RFI Improved Version
RFI Improved Version
RFI Improved Version
RFI Improved Version
Broadband Response
RFI Improved Version
RFI Improved Version
FREQUENCY (Hz)
Standard Response
Standard Response
Standard Response
Comments
1k
Comments
3-Wire
2-Wire
2-Wire
3-Wire
2-Wire
2-Wire
2
2
3
3
4
4
5
5 6 7 8 9
6 7 8 9
10k
10k
9