CM-28431-000 Knowles Acoustics, CM-28431-000 Datasheet - Page 4

• Manufacturer Part Number: CM-28431-000
• Description: SPEAKER W/FLEX TABS LP Z=30
• Manufacturer: Knowles Acoustics
• Series: CMr
• Type: Magnetic, Balanced Armature, Face Portr

Specifications of CM-28431-000

• Impedance: 30 Ohm
• Size / Dimension: 16.54mm Dia x 8.26mm H
• Termination: Flex Contacts
• Shape: Round
• Transducer Function: Speaker
• Resonant Frequency: 1kHz
• External Diameter: 16.64mm
• External Width: 16.64mm
• Sound Level Spl: 119dB
• Outer Diameter: 16.64mm
• Sensitivity, Db: 103dB
• Rohs Compliant: Yes
• Sensitivity (db): 103dB
• External Depth: 8.38mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Rated: -
• Power - Max: -
• Frequency Range: -
• Sound Pressure Level: -
• Material - Cone: -
• Material - Magnet: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 423-1037; CM-28431; CM-8431; CM8431

4
MICROPHONES – MEMS
SiSonic
The SiSonic
shipments exceeding 400 million units to date. The proven and evolving design series continues to
support high-performance, high-density innovation in such applications as cell phones, digital still
cameras, portable music players, premium earbuds and other portable electronic devices.
Design variables include ever-smaller sizes, lower profiles and mounting options, increased output
capacities, and new digital audio options that eliminate analog noise. For manufacturers, surface
mount designs eliminate off-line subassembly production costs. Customized designs are supplied on
tape-and-reel and can be run through standard automatic pick-n-place equipment during in-line
surface mount manufacturing.
The microphones can also be integrated with our patented IntelliSonic
a precisely customized sound.
•
•
•
•
•
Part Numbering
Ultrasonic Acoustic Sensor
Derived from our industry-leading MEMS silicon surface mount microphone technology,
our new ultrasonic sensor designs function on a high frequency band. Sensor designs
are possible across a wide spectrum of applications requiring highly miniaturized
solutions for sensing and actuation/signaling.
New digital mics eliminate analog noise
New integrated designs with differential or switchable gain
Zero Height Mic
Original "mini" with footprint less than 18mm
RF Hardened products eliminate GSM/TDMA burst noise
in handset designs
M M o o d d e e l l
SPM0204UD5
™
SPU: Ultra (3.76x2.95)
SPM: Mini (4.72x3.76)
Product Description
™
MEMS Microphones
MEMS microphone series is entering its fourth generation of development, with product
™
for thinnest ever designs
Description
1
UAS
•
•
•
High frequency functionality
Wide range of applications
Micro-sized sensing and actuation
0204: Standard
0205: Digital
0206: Differential
0207: Switchable
0208: Amplified
0408: Amplified
0409: Standard
Directivity
Omni
Series
2
2
SPM0204HE3-PB-6
Supply Voltage
1
(min-max)
1.5 to 3.6v
Port Hole Type
H: Standard
L:ZHS
3
www.knowles.com
2
Frequency Range
10k-65k Hz
E: Enhanced
D: Standard
RF Filter
3
™
4
software and special porting designs to provide
4 5
Sensitivity @1kHz
Supply Voltage
(dB re1V/1Pa)
3: 1.5-5.5V
5: 1.5-3.6V
6
-47.0
5
-10
-20
-30
30
20
10
0
7
10k
Knowles Internal
Reference Only
Version
Impedance
20k
6
(Ohms)
Output
< 300
30k
Packaging QTY
FREQUENCY (Hz)
(7” or 13” Reel)
2: 1200
3: 4500
6: 4800
T: 300 (7" Only)
Drain (mA)
Maximum
40k
7
Current
< 0.25
50k
60k