Knowles MEMS microphones

knowles logo Most of the Audio applications using loudspeakers uses also Microphones and hereto Seltech is global provider of Knowles' SiSonic™ MEMS microphones.

All Knowles' SiSonic™ MEMS microphones are designed with leading MEMS technology for stable acoustic performance under extreme conditions such as high temperature, shock and vibration.

Knowles' SiSonic™ MEMS microphones are :

- Omnidirectionnal
- Surface Mount Devices (SMD)
- with operating & storage temperature range from -40 °C to +100 °C
- with either Analog or Digital output
- with different RF immunity levels (standard, enhanced and maximum)

They are available with either TOP or BOTTOM sound port:

The MEMS microphones with BOTTOM sound port (also called Zero Height MicTM) shrinks product thickness by up to 30%! They minimize the distance between PCB and device housing and enable the thinnest, highest density product designs.

Knowles' SiSonic™ MEMS microphones have integrated RF protection to help prevent RF noise from getting into the acoustic signal.

All SiSonic™ MEMS microphones have a grounded Faraday cage integrated into the package.

For the enhanced RF microphones, RC filters built into the base PCB of the microphone are added.

And, maximum RF microphones are enhanced RF microphones with soldered metal-can package and a RF filtering built into both the CMOS IC.

Knowles' state-of-art MEMS microphones are used in various applications such as cell phones, digital cameras, portable music players, smart phones, laptop computers, sensors, digital and other portable electronic devices.

MEMS microphones with * are not recommended for new designs and may be withdrawn from manufacture and sale.

Microphone Model	Description	Sound port	Dimensions (mm)	Sensitivity @1kHz(dB relV /1Pa)	RF Immunity/ Burst Noise	VDD(V)	IDD(mA)
SPK0833LM4H	Digital	Bottom	4.00 x 3.00 x 1.00	-26.0	Digital Enhanced	1.6 - 3.6	0.70
SPK0415HM4H	Digital	Top	4.00 x 3.00 x 1.00	-26.0	Digital Enhanced	1.6 - 3.6	0.65
SPM0423HE4H	Digital	Top	4.72 x 3.76 x 1.25	-26.0	Digital Enhanced	1.6 - 3.6	0.60
SPM0423HM4H	Digital	Top	4.72 x 3.76 x 1.25	-26.0	Digital Enhanced	1.6 - 3.6	0.60
SPM1423HM4H	Digital	Top	4.72 x 3.76 x 1.25	-22.0	Digital Enhanced	1.6 - 3.6	0.60
SPM0423HD4H	Digital	Top	4.72 x 3.76 x 1.25	-26.0	Digital Standard	1.6 - 3.6	0.60
SPA2410LR5H	Analog Unity Gain	Bottom	3.35 x 2.50 x 0.98	-38.0	Maximum	1.5 - 3.6	0.25
SPQ0410HE5H*	Analog Unity Gain	Top	3.76 x 2.24 x 1.10	-42.0	Enhanced	1.5 - 3.6	0.25
SPQ0410HR5H	Analog Unity Gain	Top	3.76 x 2.24 x 1.10	-42.0	Maximum	1.5 - 3.6	0.16
SPQ2410HR5H	Analog Unity Gain	Top	3.76 x 2.24 x 1.10	-42.0	Maximum	1.5 - 3.6	0.25
SPUL409HE5H	Analog Unity Gain	Top	3.76 x 2.95 x 1.10	-42.0	Enhanced	1.5 - 3.6	0.25
SPU0410HR5H	Analog Unity Gain	Top	3.76 x 2.95 x 1.10	-42.0	Maximum	1.5 - 3.6	0.25
SPU0409HD5H	Analog Unity Gain	Top	3.76 x 2.95 x 1.10	-42.0	Standard	1.5 - 3.6	0.25
SPU0414HR5H	Analog Adjustable Gain	Top	3.76 x 2.95 x 1.10	-22.0	Maximum	1.5 - 3.6	0.35
SPU0409LE5H	Analog Unity Gain	Bottom	3.76 x 3.00 x 1.10	-38.0	Enhanced	1.5 - 3.6	0.25
SPU0410LR5H	Analog Unity Gain	Bottom	3.76 x 3.00 x 1.10	-38.0	Maximum	1.5 - 3.6	0.25
SPU1410LR5H	Analog Unity Gain	Bottom	3.76 x 3.00 x 1.10	-38.0	Maximum	1.5 - 3.6	0.25
SPM0406HE3H	Analog Differential Adjustable Gain	Top	4.72 x 3.76 x 1.25	-22.0	Enhanced	1.5 - 5.5	0.50
SPM0410LR5H*	Analog Unity Gain	Bottom	4.72 x 3.76 x 1.25	-38.0	Maximum	1.5 - 3.6	0.25
SPM0408LE5H*	Analog Adjustable Gain	Bottom	4.72 x 3.76 x 1.25	-18.0	Enhanced	1.5 - 3.6	0.35
SPM0404HE5H*	Analog Unity Gain	Top	4.72 x 3.76 x 1.25	-42.0	Enhanced	1.5 - 3.6	0.25
SPM0410HR5H*	Analog Unity Gain	Top	4.72 x 3.76 x 1.25	-42.0	Maximum	1.5 - 3.6	0.25
SPM0408HE5H*	Analog Adjustable Gain	Top	4.72 x 3.76 x 1.25	-22.0	Enhanced	1.5 - 3.6	0.35

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Last Updated: Wednesday, 19 June 2013 15:22

Knowles MEMS microphones

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