Title:
CIRCUIT AND METHOD FOR FACILITATING STARTUP TIME OF CRYSTAL OSCILLATOR
Document Type and Number:
WIPO Patent Application WO/2019/128235
Kind Code:
A1
Abstract:
A learning block (200) can be placed in parallel to an oscillator circuit (100) to control noise injection during the startup of a crystal oscillator. The learning block (200) can be configured to control the noise injection during the startup of the crystal oscillator by determining whether the crystal oscillator has been stabilized. An adjustment block (300) may be employed to adjust the count determined by the learning block (200) based on one or more measured characteristics of the crystal oscillator during a startup of the crystal oscillator. A simple block that creates a negative capacitance can be configured in parallel to the crystal oscillator.
Inventors:
ABUELLIL AMR (CN)
SIVASUBRAMANIAM JANAKAN (CN)
SIVASUBRAMANIAM JANAKAN (CN)
Application Number:
PCT/CN2018/098614
Publication Date:
July 04, 2019
Filing Date:
August 03, 2018
Export Citation:
Assignee:
SHENZHEN GOODIX TECH CO LTD (CN)
International Classes:
H03K3/013
Foreign References:
| CN104104361A | 2014-10-15 | |||
| US8805905B2 | 2014-08-12 | |||
| US20100211372A1 | 2010-08-19 | |||
| US8237513B2 | 2012-08-07 | |||
| JP2011124849A | 2011-06-23 |
Other References:
See also references of EP 3529896A4
Attorney, Agent or Firm:
LONGSUN LEAD IP LTD. (CN)
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