DFG-30445-000 Knowles Acoustics, DFG-30445-000 Datasheet - Page 3

• 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

DFG‐30445‐000 typical performance:
The 1kHz polar pattern for DFG‐30445‐000 measured at 1m in an anechoic chamber is approximately cardioid. The polar curves
below represent actual data from a typical microphone (output amplitude in dB relative to 0 degrees).
The typical frequency response curves are based on the average performance of several microphones. For a near
field application such as a headset, the designer may wish to add a low‐pass filter to the microphone output to
flatten the rising response at high frequencies.
For measurement, the microphone was suspended on lead wires for the typical tests as shown.
AMERICAS:
Knowles Acoustics
1151 Maplewood Drive
Itasca, IL 60143
U.S.A.
Phone: [phone]
Fax: [phone]
EUROPE:
Knowles Acoustics
York Road, Burgess Hill
West Sussex, RH15 9TT
England
Phone: [phone]
Fax: [phone]
www.knowlesacoustics.com
JAPAN:
Knowles Electronics Japan, KK
2-2-16, Sangenjaya,
Setagaya-ku, Tokyo
154-0024 JAPAN
Tel. [phone]
Fax: [phone]
Zero degrees
Application Note
180 degrees
ASIA:
Knowles Acoustics
5F, No. 129, Lane 235, Bauchiau Rd.
Shindian City, Taipei 231, Taiwan
Republic of China
Phone: [phone]
Fax: [phone]
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