Invention Grant
US07732977B2 Transceiver circuit for film bulk acoustic resonator (FBAR) transducers
有权
用于薄膜体声波谐振器(FBAR)传感器的收发器电路
- Patent Title: Transceiver circuit for film bulk acoustic resonator (FBAR) transducers
- Patent Title (中): 用于薄膜体声波谐振器(FBAR)传感器的收发器电路
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Application No.: US12112669Application Date: 2008-04-30
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Publication No.: US07732977B2Publication Date: 2010-06-08
- Inventor: Steven Martin , Osvaldo Buccafusca
- Applicant: Steven Martin , Osvaldo Buccafusca
- Applicant Address: SG Singapore
- Assignee: Avago Technologies Wireless IP (Singapore)
- Current Assignee: Avago Technologies Wireless IP (Singapore)
- Current Assignee Address: SG Singapore
- Main IPC: H01L41/04
- IPC: H01L41/04 ; H02N2/06

Abstract:
A piezoelectric transducer device includes a receive signal path, a transistor and a piezoelectric transducer connected to a first terminal of the transistor. The device also includes a switch connected to a second terminal of the transistor, wherein the switch is adapted to selectively connect the second terminal of the transistor to a transmit signal or to a bias voltage; an output connected to a third terminal of the transistor, and adapted to receive a signal from the transducer when the switch is connected to the bias voltage, wherein the switch is not in the receive signal.
Public/Granted literature
- US20090273256A1 TRANSCEIVER CIRCUIT FOR FILM BULK ACOUSTIC RESONATOR (FBAR) TRANSDUCERS Public/Granted day:2009-11-05
Information query
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