| Presentation | 1997/8/22 A Frequency-to-Digital Converter using Voltage-Controlled Oscillator Masato Yoshioka, Makoto Nagata, Atsushi Iwata, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A CMOS frequency-to-digital converter (FDC) which directly demodulates FM signals to pulse density modulation (PDM) signals is proposed. The FDC architecture has an analogy with the oversampling delta-sigma modulator. Its noise shaping loop includes a voltage-controlled oscillator as a feedback D-to-A converter, which generates binary frequency shift keying (FSK) signals. A test chip was designed and fabricated with a 0.6um CMOS technology. The performance of 40.2 dB SNR at 49 MHz carrier frequency and 500 kHz signal bandwidth was obtained by a functional simulation. The power dissipation is 11.8mW at 3.3V supply. We have also confirmed a basic operation by test chip evaluation. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | FM signal / FM demodulation / Voltage-Controled Oscillator / Delta-sigma modulation |
| Paper # | ICD97-107 |
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| Conference Information | |
| Committee | ICD |
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| Conference Date | 1997/8/22(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
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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 Frequency-to-Digital Converter using Voltage-Controlled Oscillator |
| Sub Title (in English) | |
| Keyword(1) | FM signal |
| Keyword(2) | FM demodulation |
| Keyword(3) | Voltage-Controled Oscillator |
| Keyword(4) | Delta-sigma modulation |
| 1st Author's Name | Masato Yoshioka |
| 1st Author's Affiliation | Faculty of Engineering, Hiroshima University() |
| 2nd Author's Name | Makoto Nagata |
| 2nd Author's Affiliation | Faculty of Engineering, Hiroshima University |
| 3rd Author's Name | Atsushi Iwata |
| 3rd Author's Affiliation | Faculty of Engineering, Hiroshima University |
| Date | 1997/8/22 |
| Paper # | ICD97-107 |
| Volume (vol) | vol.97 |
| Number (no) | 230 |
| Page | pp.pp.- |
| #Pages | 7 |
| Date of Issue | |