TS3A225ERTER Ethernet Switch IC Analog Switch ICs Autonomous Audio Sw
fast ethernet switch chip
,ethernet controller ic
TS3A225ERTER Ethernet Switch IC Analog Switch ICs Autonomous Audio Sw
FEATURES
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VDD Range=2.7Vto4.5V
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Break Before Make Stereo Jack Switches
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Ron for Ground FET Switches
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– WCSP Package: 70 mΩ
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– QFN Package: 100 mΩ
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Autonomous Detection of GND and MIC
Connections
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Detection Triggered by I2C or External Trigger Pin
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HDA Compatible MIC Present Indicator
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1.8V Compatible I2C Switch Control
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ESD Performance Tested Per JESD 22:
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– 2000-V Human-Body Model (A114-B, Class II)
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– 500-V Charged-Device Model (C101)
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ESD Performance (SLEEVE, RING2, TIP)
APPLICATIONS
• Mobile Phones/ Tablet PCs
• Notebook Computers
DESCRIPTION
The TS3A225E is an audio headset switch device. The device detects the presence of an analog microphone and switches a system analog microphone pin between different connectors in an audio stereo jack. The microphone connection in a stereo connector can be swapped with the ground connection depending on manufacturer. When the TS3A225E detects a certain configuration, the device automatically connects the microphone line to the appropriate pin. The device also reports the presence of an analog microphone on an audio stereo jack.
In some systems, it is desirable to connect the stereo jack pin to ground. The TS3A225E provides two internal low resistance (<100mΩ) FET switches for ground shorting.
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