| Presentation | 2004-10-22 A class-D amplifier using a spectrum shaping technique Akira Yasuda, Takashi Kimura, Koichiro Ochiai, Toshihiko Hamasaki, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, we propose a new class-D amplifier with a lower-frequency reference signal by using a spectrum shaping 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 0.2% and SNR of 102dB. The test chip can operate at single 2V power sup-ply. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Class-D / Amplifier / spectrum shaping / Audio |
| Paper # | SIP2004-98,ICD2004-130,IE2004-74 |
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| Conference Information | |
| Committee | ICD |
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| Conference Date | 2004/10/15(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Paper Information | |
| Registration To | Integrated Circuits and Devices (ICD) |
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| Language | JPN |
| 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) | |
| Keyword(1) | Class-D |
| Keyword(2) | Amplifier |
| Keyword(3) | spectrum shaping |
| Keyword(4) | Audio |
| 1st Author's Name | Akira Yasuda |
| 1st Author's Affiliation | Faculty of Engineering, Hosei University() |
| 2nd Author's Name | Takashi Kimura |
| 2nd Author's Affiliation | DCES Analog Design Department, Texas Instruments Japan Inc. |
| 3rd Author's Name | Koichiro Ochiai |
| 3rd Author's Affiliation | DCES Analog Design Department, Texas Instruments Japan Inc. |
| 4th Author's Name | Toshihiko Hamasaki |
| 4th Author's Affiliation | DCES Analog Design Department, Texas Instruments Japan Inc. |
| Date | 2004-10-22 |
| Paper # | SIP2004-98,ICD2004-130,IE2004-74 |
| Volume (vol) | vol.104 |
| Number (no) | 366 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |