Invention Grant
- Patent Title: Mixer/DAC chip and method
- Patent Title (中): 混频器/ DAC芯片和方法
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Application No.: US11686620Application Date: 2007-03-15
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Publication No.: US07796971B2Publication Date: 2010-09-14
- Inventor: Yunchu Li , Bernd Schafferer
- Applicant: Yunchu Li , Bernd Schafferer
- Applicant Address: US MA Norwood
- Assignee: Analog Devices, Inc.
- Current Assignee: Analog Devices, Inc.
- Current Assignee Address: US MA Norwood
- Agency: Sunstein Kann Murphy & Timbers LLP
- Main IPC: H04B1/16
- IPC: H04B1/16 ; H04B15/00 ; H03M1/66

Abstract:
An electronic chip has a data input for receiving an input digital data signal with a data frequency, a plurality of switches, and a logic circuit operatively coupled with both the plurality of switches and the data input. The logic circuit controls the switches to be in one of a DAC mode or a mixer mode. The DAC mode causes the switches to convert the input digital data signal into a DAC analog signal having about the data frequency. The mixer mode, however, causes the switches to convert the input digital data signal into a mixed analog signal having a mixer frequency that is higher than the data frequency.
Public/Granted literature
- US20080224908A1 Mixer/DAC Chip and Method Public/Granted day:2008-09-18
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