| Paper Abstract and Keywords |
| Presentation |
2004-10-22 14:15
A class-D amplifier using a spectrum shaping technique
Akira Yasuda (Hosei Univ.), Takashi Kimura, Koichiro Ochiai, Toshihiko Hamasaki (TI Japan) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
In this paper, we propose a new class-D amplifier with a lower-frequency reference signal by using a spectrum shap-ing technique, in order to reduce an out-of-band noise, which improves an interference problem even when radio equipment independently designed. The peak-level of the measured out-of-band noise is 15dB lower than conventional class-D amplifier. The chip realizes THD of 0.45% and SNR of 81dB. The test chip can operate at single 2V power sup-ply. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
Class-D / Amplifier / spectrum shaping / Audio / / / / |
| Reference Info. |
IEICE Tech. Rep., vol. 104, no. 366, ICD2004-130, pp. 55-60, Oct. 2004. |
| Paper # |
ICD2004-130 |
| Date of Issue |
2004-10-15 (SIP, ICD, IE) |
| ISSN |
Print edition: ISSN 0913-5685 |
| Download PDF |
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| Conference Information |
| Committee |
IE SIP ICD IPSJ-SLDM |
| Conference Date |
2004-10-21 - 2004-10-22 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
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| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
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| Paper Information |
| Registration To |
ICD |
| Conference Code |
2004-10-IE-SIP-ICD-IPSJ-SLDM |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
A class-D amplifier using a spectrum shaping technique |
| Sub Title (in English) |
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| Keyword(1) |
Class-D |
| Keyword(2) |
Amplifier |
| Keyword(3) |
spectrum shaping |
| Keyword(4) |
Audio |
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| 1st Author's Name |
Akira Yasuda |
| 1st Author's Affiliation |
Hosei University (Hosei Univ.) |
| 2nd Author's Name |
Takashi Kimura |
| 2nd Author's Affiliation |
Texas Instruments Japan Inc. (TI Japan) |
| 3rd Author's Name |
Koichiro Ochiai |
| 3rd Author's Affiliation |
Texas Instruments Japan Inc. (TI Japan) |
| 4th Author's Name |
Toshihiko Hamasaki |
| 4th Author's Affiliation |
Texas Instruments Japan Inc. (TI Japan) |
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| Speaker |
Author-1 |
| Date Time |
2004-10-22 14:15:00 |
| Presentation Time |
25 minutes |
| Registration for |
ICD |
| Paper # |
SIP2004-98, ICD2004-130, IE2004-74 |
| Volume (vol) |
vol.104 |
| Number (no) |
no.364(SIP), no.366(ICD), no.368(IE) |
| Page |
pp.55-60 |
| #Pages |
6 |
| Date of Issue |
2004-10-15 (SIP, ICD, IE) |