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TS3A227ERVAR Datasheet(PDF) 1 Page - Texas Instruments |
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TS3A227ERVAR Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 59 page  BATTERY Application Processor TS3A227E Audio Codec L R G L R G M L R G M Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TS3A227E SCDS358B – NOVEMBER 2014 – REVISED FEBRUARY 2015 TS3A227E Autonomous Audio Accessory Detection and Configuration Switch 1 Features 3 Description The TS3A227E is an autonomous audio accessory 1 • Supple Range of 2.5 V to 4.5 V detection and configuration switch that detects 3-pole • Accessory Insertion/Removal Detection with or 4-pole audio accessories and configures internal Adjustable De-bounce Timings switches to route the signals accordingly. • Accessory Configuration Detection: The internal ground FETS of the TS3A227E have an – Stereo 3-pole Headphone ultra-low RON of 60 mΩ to minimize crosstalk impact. The ground FETs are also designed to pass FM – 4-pole Standard Headset with MIC on Sleeve signals, making it possible to use the ground line of – 4-pole OMTP Headset with MIC on Ring2 the accessory as an FM antenna in mobile audio • Key Press Detection for Up to 4 Keys applications. • Ultra Low Ground FET RON of 60 mΩ Internal isolation switches allow the TS3A227E to • Power Off Noise Removal remove the click/pop noise that can be generated • Isolation of MICBIAS From Audio Jack to Remove during and insertion or removal of an audio accessory. In addition depletion FETs prevent a Click/Pop Noise floating ground while the device is unpowered, • Integrated Codec Sense Line removing the humming noise present when leaving • Manual I2C Control accessories plugged into an unpowered system. • FM Transmission Capability A low-power sleep mode is provided which shuts • Dual Small Package Options down internal circuitry to achieve very low quiescent – 16 Pin DSBGA current draw when no headset is inserted. – 16 Pin QFN The TS3A227E features integrated key press detection for detecting up to 4 keys with press and 2 Applications release support. • Mobile Phones Manual I2C control allows the TS3A227E to adapt to application needs by providing control over de- • Tablets bounce settings and switch states. • Notebooks and Ultrabooks • Anywhere a 3.5 mm Audio Jack is Used Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) QFN (16) 3.50 mm × 3.50 mm TS3A227E DSBGA (16) 1.79 mm × 1.79 mm (1) For all available packages, see the orderable addendum at the end of the datasheet. 4 Simplified Schematic 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. |
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