1.2-V Low-Power Multi-Mode DAC+Filter Blocks for Reconfigurable (WLAN/UMTS, WLAN/Bluetooth) Transmitters
| Autor: | Stefano D'Amico, A. Vigna, Piero Malcovati, N. Ghittori, Andrea Baschirotto |
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| Přispěvatelé: | Ghittori, N, Vigna, A, Malcovati, P, D'Amico, S, Baschirotto, A, D'Amico, Stefano, Baschirotto, Andrea |
| Jazyk: | angličtina |
| Rok vydání: | 2006 |
| Předmět: |
Engineering
VHF filter current-steering DAC wireless transmitter low-pass filter cut-off frequency law.invention IEEE standard Bluetooth DAC conversion frequency SFDR law 1 MHz radio transmitter WLAN IEEE 802.11a/b/g standard wireless LAN low-pass filter reconstruction filter digital-analogue conversion Transmitter 100 MHz power consumption Cutoff frequency UMTS standard 5.4 mW 8.4 mW 0.13 micron 11 MHz reconfigurable transmitter filter bandwidth Low-pass filter Bluetooth standard reconfigurable system 8 mW fourth-order low-pass reconstruction filter Hardware_INTEGRATEDCIRCUITS Electronic engineering Wireless DAC Electrical and Electronic Engineering business.industry ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS multistandard wireless transmitter 2.5 MHz CMOS technology 3G mobile communication Filter (video) 1.2 V Baseband business UMTS frequency bands 50 MHz |
| Popis: | Two versions of a baseband block composed by a 8-bit current-steering DAC and a fourth-order low-pass reconstruction filter are realized in a 0.13-μm CMOS technology to be embedded in multistandard wireless transmitters. In order to satisfy the specifications of WLAN IEEE 802.11a/b/g, UMTS, and Bluetooth standards, the proposed devices can be digitally programmed, adjusting the DAC conversion frequency and the low-pass filter cut-off frequency. For the WLAN case, the DAC operating frequency and the filter bandwidth are set to 100 MHz and 11 MHz, respectively, for the UMTS case, they are equal to 50 MHz and 2.5 MHz, and for the Bluetooth case, they are equal to 50 MHz and 1 MHz. The first device is reconfigurable between WLAN and UMTS, and the second one between WLAN and Bluetooth. The two fabricated devices operate from a single 1.2-V supply voltage and occupy a 0.8 mm2 and 0.7 mm2 die area, respectively. The power consumption is optimized according to the operation mode and is 8 mW in WLAN mode, 8.4 mW in UMTS mode, and 5.4 mW in Bluetooth mode. For all the considered standards, the measured OIP3 is larger than 28 dBm, while the SFDR is 54 dB for WLAN, 61 dB for UMTS, and 63 dB for Bluetooth. © 2006 IEEE. |
| Databáze: | OpenAIRE |
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