| Presentation | 1998/8/21 A 16b △Σ DAC with Non-linear Quantization Technique Satoshi Hanazawa, Takao Okazaki, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper describes an oversampling sigma-delta D/A converter (DAC) for next-generation voiceband PCM CODEC, which requires not only wider dynamic range but also lower power consumption in A/D converter (ADC) and DAC. The DAC achieves maximum signal-to-noise + distortion ratio (SNDR) of 100dB with psophometric-weighting, and moreover, it reduces both its size and power dissipation by non-linear quantization technique (14 levels). The CODEC-LSI is realized in a 6.9mm×6.9mm chip using 0.8um double-poly double-metal CMOS technology, and packaged in 64-pin QFP. It consumes only 73mW typically from a single 5V supply despite some additional new functions, and it operates from -20℃ to 80℃. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Voiceband PCM CODEC / D/A converter / Non-linear quantization / Signal-to-noise+distortion ration (SNDR) |
| Paper # | ICD98-130 |
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| Conference Information | |
| Committee | ICD |
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| Conference Date | 1998/8/21(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
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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 16b △Σ DAC with Non-linear Quantization Technique |
| Sub Title (in English) | |
| Keyword(1) | Voiceband PCM CODEC |
| Keyword(2) | D/A converter |
| Keyword(3) | Non-linear quantization |
| Keyword(4) | Signal-to-noise+distortion ration (SNDR) |
| 1st Author's Name | Satoshi Hanazawa |
| 1st Author's Affiliation | Device Development Center, Hitachi, Ltd.() |
| 2nd Author's Name | Takao Okazaki |
| 2nd Author's Affiliation | Device Development Center, Hitachi, Ltd. |
| Date | 1998/8/21 |
| Paper # | ICD98-130 |
| Volume (vol) | vol.98 |
| Number (no) | 245 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |