Invention Grant
- Patent Title: Oscillator circuit for generating clock signal
- Patent Title (中): 用于产生时钟信号的振荡器电路
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Application No.: US13607730Application Date: 2012-09-09
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Publication No.: US08830006B2Publication Date: 2014-09-09
- Inventor: Jinglin Zhang , Yali Wang
- Applicant: Jinglin Zhang , Yali Wang
- Applicant Address: US TX Austin
- Assignee: Freescale Semiconductor, Inc.
- Current Assignee: Freescale Semiconductor, Inc.
- Current Assignee Address: US TX Austin
- Agent Charles Bergere
- Priority: CN201210100138 20120406
- Main IPC: H03K3/0231
- IPC: H03K3/0231
Abstract:
An oscillator circuit includes a charge current source and first and second muxes. The first mux has a common node, a discharge node, a control node and a charge node coupled to the charge current source. The control node couples the common node to either the discharge or charge nodes. The second mux has a shared node, a reference node, a control node and a ground node coupled to ground. The second mux control node couples the shared node to either the reference or ground nodes. A capacitor is coupled between the common node and the shared node. A comparator has a non-inverting input coupled to the common node, an inverting input coupled to the reference node, and an output coupled to the first and second control nodes. A discharge current sink couples the discharge node to ground and an oscillator output is provided by the comparator.
Public/Granted literature
- US20130265093A1 OSCILLATOR CIRCUIT FOR GENERATING CLOCK SIGNAL Public/Granted day:2013-10-10
Information query
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