Design Con 2015
Breaking News
Comments
Newest First | Oldest First | Threaded View
WKetel
User Rank
Rookie
re: World's smallest MEMS mic debuts
WKetel   4/28/2011 8:57:23 PM
NO RATINGS
A smaller microphone could be quite useful in some previously unexplored applications. It could reduce the area needed in phones, BUT the one thing that this world would not gain any benefit at all from would be a smaller cell phone. My reasoning is thus: the microphone will be even farther from the speakers mouth, and the ear-piece volume will still be low, as a way to save battery power. The result will be even more people jabbering loudly on their cell phones, sharing details of their conversations with all the passers-by, who have no desire at all to be involved with the private lives of these cell phone users. So use the new small devices for new medical applications and new security systems applications, and even for new video game console applications, but not to make a smaller cell phone.

old account Frank Eory
User Rank
Rookie
re: World's smallest MEMS mic debuts
old account Frank Eory   4/1/2011 11:26:22 PM
NO RATINGS
Very exciting, although still rather pricey...

R_Colin_Johnson
User Rank
Blogger
re: World's smallest MEMS mic debuts
R_Colin_Johnson   4/1/2011 10:15:21 PM
NO RATINGS
Frequency response is unchanged at 50-to-22k Hz, facilitated by keeping the microphone diaphragm the same size for all but its first generation (see figure).

R_Colin_Johnson
User Rank
Blogger
re: World's smallest MEMS mic debuts
R_Colin_Johnson   4/1/2011 10:12:04 PM
NO RATINGS
Your reasoning is sound-and I concur-but Akustica has been ahead in die size from the beginning and keeps shrinking it ahead of competitors. Most cell phones, however, are buying their MEMS mics from Knowles Acoustics-their traditionally supplier of electret microphones. Akustica has yet to crack the cell phone market, but that may change now that they are a part of MEMS giant, Bosch Sensortec.

R_Colin_Johnson
User Rank
Blogger
re: World's smallest MEMS mic debuts
R_Colin_Johnson   4/1/2011 10:07:52 PM
NO RATINGS
More die per wafer means lower cost per die--yields being equal--but margins determine pricing. Akustica is quoting $1.30 in 10k quantities.

Robotics Developer
User Rank
Rookie
re: World's smallest MEMS mic debuts
Robotics Developer   3/30/2011 10:23:58 PM
NO RATINGS
I could see the move to smaller phones and perhaps using an array of mics for improved audio due to noise reductions (as stated above). The benefit is multi-faceted: smaller die = lower cost and better placement options due to PCB layout flexibility. does the new mic have better or worse frequency response?

GREAT-Terry
User Rank
CEO
re: World's smallest MEMS mic debuts
GREAT-Terry   3/30/2011 3:57:03 PM
NO RATINGS
It seems there is not a big architectural breakthrough but just another shrinking in geometry. So, I would expect more companies can build the same kind of MEMS mic in this size and soon the record can be broken by a smaller geometry. An era of mic array is here!

Silicon_Smith
User Rank
Rookie
re: World's smallest MEMS mic debuts
Silicon_Smith   3/30/2011 3:10:59 PM
NO RATINGS
Would there be any cost implications due to the technological rigour involved? What would be the impact on the yield? And will the discount due to more chips per wafer be helpful in bringing down the cost?

kdboyce
User Rank
Rookie
re: World's smallest MEMS mic debuts
kdboyce   3/30/2011 5:32:20 AM
NO RATINGS
Akustica's advantage going forward will be the ability to fit more mics into a given form factor, thus allowing more products to benefit from microphone arrays, with attendant ambient noise reduction on communication up-links and headphone and Bluetooth earphone products. With more mics, talker tracking becomes easier in conference situations.



Most Recent Comments
sempaiscuba
 
sempaiscuba
 
sempaiscuba
 
chipchap42
 
sempaiscuba
 
sempaiscuba
 
David Ashton
 
Duane Benson
 
sixscrews
Top Comments of the Week
Flash Poll
Like Us on Facebook

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
Max Maxfield

Max's BADASS Display: A Comedy of Errors
Max Maxfield
4 comments
Good grief -- where does the time go? I first determined to build my Bodacious Acoustic Diagnostic Astoundingly Superior Spectromatic (BADASS) display way back in the mists of time we used ...

<b><a href=Betajet">

The Circle – The Future's Imperfect in the Present Tense
Betajet
5 comments
The Circle, a satirical, dystopian novel published in 2013 by San Francisco-based writer Dave Eggers, is about a large, very powerful technology company that combines aspects of Google, ...

Martin Rowe

Make This Engineering Museum a Reality
Martin Rowe
Post a comment
Vincent Valentine is a man on a mission. He wants to make the first house to ever have a telephone into a telephone museum. Without help, it may not happen.

Rich Quinnell

Making the Grade in Industrial Design
Rich Quinnell
16 comments
As every developer knows, there are the paper specifications for a product design, and then there are the real requirements. The paper specs are dry, bland, and rigidly numeric, making ...

Special Video Section
The LT8640 is a 42V, 5A synchronous step-down regulator ...
The LTC2000 high-speed DAC has low noise and excellent ...
How do you protect the load and ensure output continues to ...
General-purpose DACs have applications in instrumentation, ...
Linear Technology demonstrates its latest measurement ...
10:29
Demos from Maxim Integrated at Electronica 2014 show ...
Bosch CEO Stefan Finkbeiner shows off latest combo and ...
STMicroelectronics demoed this simple gesture control ...
Keysight shows you what signals lurk in real-time at 510MHz ...
TE Connectivity's clear-plastic, full-size model car shows ...
Why culture makes Linear Tech a winner.
Recently formed Architects of Modern Power consortium ...
Specially modified Corvette C7 Stingray responds to ex Indy ...
Avago’s ACPL-K30T is the first solid-state driver qualified ...
NXP launches its line of multi-gate, multifunction, ...
Doug Bailey, VP of marketing at Power Integrations, gives a ...
See how to ease software bring-up with DesignWare IP ...
DesignWare IP Prototyping Kits enable fast software ...
This video explores the LT3086, a new member of our LDO+ ...
In today’s modern electronic systems, the need for power ...