Knowles EK-3027 Electret condenser microphone - supply voltage range: 0.9 to 10v dc Datasheet

EK
SERIES
®
Actual Size
Features
• Electret condenser microphone
• High electroacoustic sensitivity
• Lowest noise Knowles microphone • High resistance to mechanical shock
• Rugged construction to withstand • Low vibration sensitivity
severe environmental conditions
• Various responses available
• Available with RFI suppression
™
SENSITIVITY IN dB RELATIVE TO 1.0V/0.1 Pa (N/m2)
Standard Response
-40
-45
EK-3024/5024
EK-3027
EK-3032
-50
-55
-60
-65
-70
-75
-80
100
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
1000
FREQUENCY IN HERTZ
Open circuit sensitivity with 1.3VDC supply
®
data sheet
9
10000
Specification Data
EK Series
Power Requirements
Supply Voltage (VS)
range: 0.9 to 10VDC
typical: 1.3VDC
Quiescent Current Drain (@ VS = 1.3VDC)
typical: 19µA
maximum: 50µA
Performance
Load Voltage (VL)
range: 0.2 to 0.9VDC
typical: 0.5VDC
Response/Sensitivity
see curves, pages 1, 4-6
Sensitivity Range @ primary test frequency
Ski Slope and Step responses: ±3dB
all other responses: ±2dB
Output Noise Level
(A-weighted)
typical: -103dBV*
maximum: -100dBV (Ski Slope models)
Low Supply Voltage Sensitivity Loss
(Vs reduced from 1.3 to 0.9VDC)
typical: 0.3dB
maximum: 3.0dB
Input-Referred Noise Level*
(A-weighted, 1kHz ref.)
typical: 24dB SPL
maximum: 26dB SPL
Humidity Coefficient of Sensitivity
typical: 0.02dB per %RH
(in the absence of condensation)
Input-Referred Vibration Sensitivity*
(1g acceleration, 1kHz ref.)
maximum: 62dB SPL
Output Impedance @ 1kHz
range: 2.8 to 6.8kΩ
nominal: 4.4kΩ
Temperature Range
operating: -17°C to 63°C
storage: -40°C to 63°C
Acoustic Polarity
Increased pressure at sound inlet
causes a positive going voltage to
appear at the output terminal, relative
to the negative terminal
ESD Tolerance
MIL-STD-750 Class 1 rating
EOS/ESD-S5.1-1993 Class 2 rating
Power Supply Feedthrough Attenuation
typical: 14dB, output-referred
*For standard, damped, undamped, and broadband models only
Mechanical
Weight
0.13 grams
Case Material
Type 305 stainless steel
Dimensions
See outline drawings, page 7
Solder Content
Sn63Pb37
Optional Soldering Fixture
Base: ET-3042
Nest Plate: ET-800
Back Plate: ET-900
2
Model Variations
EK Series
Model
Port
Response
EK-3024
12S
Standard
EK-3027
0KP
Standard
EK-3028
12S
6dB/octave Ski Slope
EK-3029
12S
12dB/octave Ski Slope
EK-3031
12S
Step
EK-3032
3S
EK-3033
12S
Damped Peak
EK-3091
0KP
12dB/octave Ski Slope
EK-3092
0KP
6dB/octave Ski Slope
EK-3103
0KPL
Broadband
EK-3115
12S
Step
EK-3132
Ka
Broadband
EK-3133
12SL
Broadband
EK-3142
0KP
Damped Peak
EK-5024
12S
Standard (Screenless)
EK-5033
12S
Damped Peak (Screenless)
EK-7136
12S
Undamped Peak
EK-7164
3S
Damped Peak
EK-7276
12S
Damped Peak
EK-9874
12S
12dB/octave Ski Slope
Standard
Microphones are also available with RFI suppression filters.
Other model variations available upon request. Contact
Knowles Electronics for details.
®
3
SENSITIVITY IN dB RELATIVE TO 1.0V/0.1Pa (N/m2)
Damped Peak Response
-40
EK-3033/3142
-45
EK-5033/7276
-50
-55
-60
-65
-70
-75
-80
2
3
4
5
6
7
100
8 9
1000
2
3
4
5
6
7
8 9
10000
3
4
5
6
7
8 9
10000
FREQUENCY IN HERTZ
Open circuit sensitivity with 1.3VDC supply
SENSITIVITY IN dB RELATIVE TO 1.0V/0.1Pa (N/m2)
Undamped Peak Response
-40
EK-7136
-45
-50
-55
-60
-65
-70
-75
-80
2
100
3
4
5
6
7
8 9
1000
2
FREQUENCY IN HERTZ
Open circuit sensitivity with 1.3VDC supply
®
4
SENSITIVITY IN dB RELATIVE TO 1.0V/0.1Pa (N/m2)
6dB/Octave Ski Slope Response
-40
EK-3028
-45
EK-3092
-50
-55
-60
-65
-70
-75
-80
2
3
4
5
6
7
100
8 9
1000
2
3
4
5
6
7
8 9
10000
3
4
5
6
7
8 9
10000
FREQUENCY IN HERTZ
Open circuit sensitivity with 1.3VDC supply
SENSITIVITY IN dB RELATIVE TO 1.0V/0.1Pa (N/m2)
12dB/Octave Ski Slope Response
-40
EK-3029
-45
EK-3091
-50
-55
-60
-65
-70
-75
-80
2
3
4
5
6
100
7
8 9
1000
2
FREQUENCY IN HERTZ
Open circuit sensitivity with 1.3VDC supply
5
SENSITIVITY IN dB RELATIVE TO 1.0V/0.1Pa (N/m2)
Step Response
-40
EK-3031
-45
EK-3115
-50
-55
-60
-65
-70
-75
-80
2
3
4
5
6
7
100
8 9
1000
2
3
4
5
6
7
8 9
10000
3
4
5
6
7
8 9
10000
FREQUENCY IN HERTZ
Open circuit sensitivity with 1.3VDC supply
SENSITIVITY IN dB RELATIVE TO 1.0V/0.1Pa (N/m2)
Broadband Response
-40
EK-3103/3133
-45
EK-3132
-50
-55
-60
-65
-70
-75
-80
2
100
3
4
5
6
7
8 9
1000
2
FREQUENCY IN HERTZ
Open circuit sensitivity with 1.3VDC supply
6
Signal Port Locations
1.68
1.55
(
.066
.061
2.82
2.72
)
12S
( .111
.107 )
4.01
3.95
5.59
5.52
( .049
.039 )
1.24
0.99
( .089
.085 )
POSITIVE
TERMINAL
(
.076
.071
OUTER
( .057
.054 ) DIAMETER
1.14
1.04
( .045
.041 )
5.59
5.52
( .049
.039 )
POSITIVE
TERMINAL
(
)
( .045
.041 )
1.24
0.99
(
NEGATIVE
TERMINAL
2.26
2.15
NEGATIVE
TERMINAL
1.88
1.80
( .089
.085 )
POSITIVE
TERMINAL
2.82
2.72
(
.022
.018
9 PLACES
( .158
.156 )
1.041
1.039
( .041
.039 )
2 PLACES
( )
1.80 .071 2 PLACES
(
1.75 .069 )
5.59
5.52
.220
.218
1.24
0.99
NEGATIVE
TERMINAL
SOLDER BUILDUP
Ka
( .111
.107 )
)
( .089
.085 )
.64 (.025) MAXIMUM
( .076
.071 )
SOLDER BUILDUP
4.01
3.95
2.26
2.15
OUTER
( .074
.071 ) DIAMETER
.64 (.025) MAXIMUM
OUTPUT
TERMINAL
)
POSITIVE
TERMINAL
OUTPUT
TERMINAL
( .220
.218 )
( .158
.156 )
OUTER
( .057
.054 ) DIAMETER
1.24 .049
0.99 ( .039 )
( .158
.156 )
1.93
1.80
0.559
0.457
1.45
1.37
4.01
3.95
3S
( .111
.107 )
.220
.218
0KPL
( .111
.107 )
( .080
.076 )
( .049
.039 )
( .066
.061 )
.64 (.025) MAXIMUM
( .042
.038 )
( .080
.076 )
5.59
5.52
1.14
1.04
OUTER
( .074
.071 ) DIAMETER
.64 (.025) MAXIMUM
4.01
3.95
2.03
1.93
2.82
2.72
SOLDER BUILDUP
2.82
2.72
OUTER
( .057
.054 ) DIAMETER
SOLDER BUILDUP
5.59
5.52
OUTPUT
TERMINAL
.066
.061
POSITIVE
TERMINAL
OUTPUT
TERMINAL
2.03
1.93
1.06
0.96
1.68
1.55
NEGATIVE
TERMINAL
( .158
.156 )
1.88
1.80
1.45
1.37
( .089
.085 )
1.68
1.55
12SL
( .089
.085 )
( .158
.156 )
( .220
.218 )
2.26
2.15
( .220
.218 )
2.26
2.15
NEGATIVE
TERMINAL
4.01
3.95
( .049
.039 )
1.24
0.99
.64 (.025) MAXIMUM
( .111
.107 )
4.01
3.95
1.24
0.99
( .080
.076 )
SOLDER BUILDUP
2.82
2.72
)
1.45
1.37
0KP
( .111
.107 )
5.59
5.52
OUTPUT
TERMINAL
1.93
1.80
2.03
1.93
( .158
.156 )
( .220
.218 )
2.26
2.15
NEGATIVE
TERMINAL
2.82
2.72
( .049
.039 )
POSITIVE
TERMINAL
OUTPUT
TERMINAL
2.26
2.15
( .089
.085 )
.64 (.025) MAXIMUM
SOLDER BUILDUP
Dimensions in millimeters (inches)
7
EKSERIES
1/3 Octave Equivalent Noise & Output Noise
30
EK-3024
Equivalent Noise (dB SPL)
25
20
15
10
5
0
100
125
160
200
250
315
400
500
630
800 1000 1250 1600 2000 2500 3150 4000 5000 6300 8000 10000
1/3 Octave Bands (Hz)
40
Output Noise (dB re 1µV)
EK-3024
20
0
-20
100
125
160
200
250
315
400
500
630
800 1000 1250 1600 2000 2500 3150 4000 5000 6300 8000 10000
1/3 Octave Bands (Hz)
Knowles Electronics, Inc.
1151 Maplewood Drive
Itasca, Illinois 60143
Phone: (630) 250-5100
Fax:
(630) 250-0575
www.knowles.com
Knowles Europe
York Road, Burgess Hill
West Sussex, RH15 9TT, England
Phone: (44) 1444 235432
Fax:
(44) 1444 248724
Knowles Electronics Japan KK
Kyodo Bloom Building
19-1 Miyasaka 2-Chome
Setagaya-Ku, Tokyo 156-0051, Japan
Phone: (81) 3 3439 1151
Fax:
(81) 3 3439 8822
Micromax Pty. Ltd.
P.O. Box 1238
Wollongong N.S.W.
2500, Australia
Phone: (61) 2 4226 6777
Fax:
(61) 2 4226 6602
Knowles Electronics Taiwan, Ltd.
53 Pao Hsing Road
Hsin Tien City, Taipei, Taiwan
Republic of China
Phone: (886) 2 2911 4931
Fax:
(886) 2 2918 6868
NOTE: Specifications are subject to change without notice. The information on this Data Sheet reflects typical applications. Specific test specifications defining
each model are available by requesting Outline Drawing Sheets 1.1 and Performance Specifications Sheets 2.1 of that model number. Knowles’ responsibility is
limited to compliance with the Outline Drawing and the Performance Specification application to the subject model at time of manufacture.
Knowles Electronics, Inc.
8
Issue 04 - 0801
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