Invention Grant
- Patent Title: Low pass filter and electronic device
- Patent Title (中): 低通滤波器和电子设备
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Application No.: US10558718Application Date: 2004-05-26
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Publication No.: US07388439B2Publication Date: 2008-06-17
- Inventor: Adrianus Bernardus Smolders , Nicolas Jonathan Pulsford , Adrianus Alphonsus Jozef Buijsman , Pascal Philippe , Fattah Haddad
- Applicant: Adrianus Bernardus Smolders , Nicolas Jonathan Pulsford , Adrianus Alphonsus Jozef Buijsman , Pascal Philippe , Fattah Haddad
- Applicant Address: NL Eindhoven
- Assignee: NXP B.V.
- Current Assignee: NXP B.V.
- Current Assignee Address: NL Eindhoven
- Agent Peter Zawilski
- Priority: EP03076725 20030603
- International Application: PCT/IB2004/050778 WO 20040526
- International Announcement: WO2004/107568 WO 20041209
- Main IPC: H03L7/00
- IPC: H03L7/00

Abstract:
The electronic device (100) of the invention comprises a semiconductor device (30) and a low-pass filter (20), which are present in a stacked configuration, and which together include a phase locked loop. The low-pass filter is preferably embodied by vertical trench capacitors, and preferably comprises a drift compensation part. The device (100) can be suitably provided in an open loop architecture. In a preferred embodiment, the low-pass filter comprises a large capacitor (C2) and a small capacitor (C1) connected in parallel, the large capacitor (C2) being connected in series with a resistor (R1).
Public/Granted literature
- US20070018748A1 Low pass filter and electronic device Public/Granted day:2007-01-25
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