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SGM2549D

Active

CTIA/OMTP Headset Ground Pole Switch Autonomous Pole Position Fixing

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Preview Image
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The SGM2549D senses ground pole and automatically selects switches accordingly in either the driver side or the headset side, with no need of any external control input. If a plug-in of the earphone is misplaced, it will keep SGM2549D trying periodically until a correct microphone pole is found. It consumes 1.3μA when a microphone is identified.

 

SGM2549D is available in Green UTDFN-1.5×2-6L and SOT-23-6 packages. It is rated over the -40℃ to +85℃ temperature range.

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FEATURES
  • Simple and Dedicated for One Purpose
  • SGMICRO’s Patented Circuit w/o IP Conflict
  • Autonomous Fixing CTIA/OMTP Ground Path
  • Keep MIC Low When a 3-Pole Headset Identified
  • Applicable to Both Driver Side and Earphone Side
  • Low Ground Path Impedance
  • Ground Path Voltage Drop Sensing
  • Powered by Local Source or External Parasitics
  • Ground Pin FM Antenna Path
  • -40℃ to +85℃ Operating Temperature Range
  • SGM2549D is Available in Green UTDFN-1.5×2-6L and SOT-23-6 Packages
APPLICATIONS

Phones/Pads/Computers/Media Players

Earphones/Phone-Jack Key/Phone-Jack Button

Ordering Information
Part Number
StatusPackagePinsPd-Free
RoHS
REACH
Green
MSL RatingOperating Temperature RangeMaterial ContentReliability Report
Unit Resale Price*
(Volume Range: in USD)
Lead Time**
(Volume Range: Days)
SGM2549DYN6G/TR
Active
SOT-23-6
6
YES
YESYESYESMSL3
-40℃ to +85℃
View
View
1-24 units : $0.7/unit
25-99 units : $0.6/unit
100-249 units : $0.5/unit
250-499 units : $0.4/unit
500-999 units : $0.35/unit
1000-9999 units : $0.26/unit
3K-9K : 14 days
10K-99K : 35 days
100K-999K : 70 days
1000K and above : 91 days
SGM2549DYUDT6G/TR
Active
UTDFN-1.5×2-6L
6
YES
YESYESYESMSL1
-40℃ to +85℃
View
View
1-24 units : $0.77/unit
25-99 units : $0.66/unit
100-249 units : $0.55/unit
250-499 units : $0.44/unit
500-999 units : $0.385/unit
1000-9999 units : $0.286/unit
3K-9K : 14 days
10K-99K : 35 days
100K-999K : 70 days
1000K and above : 91 days

* The unit resale price is for reference purposes only. Please contact our distributors for a formal quotation.

** The lead time provided is for reference purposes only and is subject to change based on different circumstances.

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SG Micro Corp (SGMICRO) specializes in the development, manufacturing and sales of high-performance and high-reliability integrated circuits for analog signal conditioning and system power management, offering innovative solutions to a broad range of applications in the industrial, automotive, communication, computing, consumer electronics, and medical equipment markets.
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