Fairchild Semiconductor’s Digital Microphone Series Converts ECM Outputs to Digital PDM Data Streams, & includes Temperatur...
December 19 2011 - 11:00AM
Business Wire
Fairchild Semiconductor (NYSE: FCS) expands its high-performance
analog mobile audio device portfolio with the introduction of the
FAN3850x series of digital microphone pre-amplifiers, including the
FAN3850A 16dB or 19dB gain and the FAN3850T with 15dB gain and
added temperature compensation.
These devices integrate a pre-amplifier, Low Drop-Out Regulator
(LDO) and Analog-to-Digital Converter (ADC) that converts Electret
Condenser Microphone (ECM) outputs to digital pulse density
modulation (PDM) data streams. This provides advanced noise
rejection capabilities as well as an easy interface to mobile
handset processors – resulting in better sound quality. For more
information, and to order samples, visit:
http://www.fairchildsemi.com/pf/FA/FAN3850A.html
http://www.fairchildsemi.com/pf/FA/FAN3850T.html
Features and Benefits:
- FAN3850A features both 16dB and 19dB
gain versions.
- FAN3850T offers 15dB gain and includes
integrated negative temperature coefficient to compensate for ECM
positive temperature coefficient to achieve a flat sensitivity
response over temperature.
- Pre-amplifier accepts analog signals
from the ECM and drives an over-sampled sigma delta ADC and outputs
Pulse Density Modulation (PDM) data streams.
- Powered from the system supply rails,
1.64V to 3.63V, with lower power consumption of only 0.8mW and less
than 20µW in power down mode.
- Excellent signal to noise ratio (SNR),
lower distortion, and high power supply rejection even at high
sound pressure levels (SPL).
- Suitable for use in mobile handset and
notebook microphone applications.
Dedicated to delivering “Solutions for Your Success™,” Fairchild
Semiconductor is a mobile technology leader offering a substantial
portfolio of analog and power IP that can be customized to meet
specific design requirements. By integrating leading circuit
technologies into tiny, advanced packages, Fairchild provides
mobile users significant advantages while reducing the size, cost
and power of designs. Fairchild’s mobile IP can be found in a
majority of handsets in use today.
For more information on Fairchild’s mobile solutions, visit the
Fairchild website at:
http://www.fairchildsemi.com/applications/diagrams/mobile.html
Fairchild Semiconductor: Solutions for Your Success™
Delivery Information:
Price: US in 1,000 quantity pieces
FAN3850A: $0.16
FAN3850T: $0.19
Availability: Samples available upon request.
Delivery: 8-12 weeks ARO
Contact Information:
To contact Fairchild Semiconductor about this product, please go
to: http://www.fairchildsemi.com/cf/sales_contacts/.
For information on other products, design tools and sales
contacts, please visit: http://www.fairchildsemi.com.
Note to Editor: For a datasheet in PDF format, please go
to:
http://www.fairchildsemi.com/ds/FA/FAN3850A.pdf
http://www.fairchildsemi.com/ds/FA/FAN3850T.pdf
About Fairchild Semiconductor:
Fairchild Semiconductor (NYSE: FCS) – global presence, local
support, smart ideas. Fairchild delivers energy-efficient,
easy-to-use and value-added semiconductor solutions for power and
mobile designs. We help our customers differentiate their products
and solve difficult technical challenges with our expertise in
power and signal path products. Please contact us on the web at
http://www.fairchildsemi.com.
Follow us on Twitter @ http://twitter.com/FairchildSemi
View product and company videos, listen to podcasts and comment
on our blog @
http://www.fairchildsemi.com/engineeringconnections
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