Title:
SAMPLING MIXER CIRCUIT AND RECEIVER
Document Type and Number:
WIPO Patent Application WO/2013/111565
Kind Code:
A1
Abstract:
Provided are a sampling mixer circuit and a receiver wherein the flexibility of positions at which the zero point and pole of a transfer function are set is high and wherein any desired filter characteristic can be easily formed. The sampling mixer circuit comprises: a clock generating circuit that outputs four-phase control signals the periods of which are in accordance with the carrier frequency of an input signal and the phases of which are different from one another; a voltage/current converting circuit that converts a voltage signal based on the input signal to a current signal; four-system charge sharing circuits in which the current signal as converted is input to a plurality of capacitors in accordance with the different phases based on the four-phase control signals and in which charges are exchanged among the plurality of capacitors; and a phase-to-phase capacitor that is selectively connected, on the basis of the four-phase control signals, to the respective ones of nodes, which are other than the input nodes of the current signal, in the four-system charge sharing circuits.
Inventors:
MORISHITA YOHEI
Application Number:
PCT/JP2013/000272
Publication Date:
August 01, 2013
Filing Date:
January 22, 2013
Export Citation:
Assignee:
PANASONIC CORP (JP)
International Classes:
H03D7/00; H03H19/00; H04B1/26
Domestic Patent References:
| WO2011024481A1 | 2011-03-03 | |||
| WO2010064450A1 | 2010-06-10 |
Attorney, Agent or Firm:
WASHIDA, KIMIHITO (JP)
Koichi Washida (JP)
Koichi Washida (JP)
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Claims: