Title:
CURRENT D/A CONVERTER, DELTA SIGMA MODULATOR, AND COMMUNICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2015/004829
Kind Code:
A1
Abstract:
Each D/A converter element (100) of this D/A converter (1A) is provided with: a current source (101, 102, 103) that supplies output current to an output node (401, 402); and a switch (110, 111) for controlling the output current. A capacitor (200) having a switch (210, 211) and a capacitive load (220) is connected to the output node (401, 402). The D/A converter (1A) is further provided with a switch control circuit (300) that controls the switch (110, 111) in accordance with digital signals (D11, D12,…,D1n), and controls the switch (210, 211) in accordance with the on/off state of the switch (110, 111).
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Inventors:
MITANI YOSUKE
MORIE TAKASHI
MATSUKAWA KAZUO
UCHIDA MASASHI
MORIE TAKASHI
MATSUKAWA KAZUO
UCHIDA MASASHI
Application Number:
PCT/JP2014/001920
Publication Date:
January 15, 2015
Filing Date:
April 02, 2014
Export Citation:
Assignee:
PANASONIC CORP (JP)
International Classes:
H03M1/74; H03M3/02
Domestic Patent References:
| WO2012153371A1 | 2012-11-15 |
Foreign References:
| JP2000224039A | 2000-08-11 |
Attorney, Agent or Firm:
MAEDA & PARTNERS (JP)
Patent business corporation MAEDA PATENT OFFICE (JP)
Patent business corporation MAEDA PATENT OFFICE (JP)
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