A 1.2- V 30.4-dBm OIP3 Reconfigurable Analog Baseband Channel for UMTS/WLAN Transmitters
| Autor: | Andrea Baschirotto, N. Ghittori, A. Vigna, Piero Malcovati, Stefano D'Amico |
|---|---|
| Přispěvatelé: | Ghittori, N, Vigna, A, Malcovati, P, D'Amico, S, Baschirotto, A, D'Amico, Stefano, Baschirotto, Andrea |
| Jazyk: | angličtina |
| Rok vydání: | 2006 |
| Předmět: |
Transimpedance amplifier
Engineering Low-pass filter Reconstruction filter law.invention integrated circuit design law universal mobile telecommunication system Electronic engineering UMTS transmitter Wi-Fi 16.8 mW radio transmitter Electrical and Electronic Engineering CMOS integrated circuit wireless LAN low-pass filter business.industry digital-analogue conversion ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS Transmitter 100 MHz low-pass reconstruction filter transimpedance stage 19.44 mW CMOS technology Cutoff frequency 2.11 MHz WLAN transmitter analog baseband transmitter channel current steering digital-analog converter 3G mobile communication 1.2 V reconfigurable analog baseband channel wireless local area network Baseband business 0.13 micron UMTS frequency bands 11 MHz 50 MHz |
| Popis: | This paper presents a reconfigurable universal mobile telecommunication systems [(UMTS) and wireless local area network (WLAN) mode)] analog baseband transmitter channel composed of a current steering digital-analog converter (DAC), a transimpedance stage, and a low-pass reconstruction filter. The device operates from a single 1.2-V supply voltage while guaranteeing the high-linearity UMTS/WLAN standard requirements. It can be digitally programmed to process WLAN 802.11a/b/g and UMTS signals, by adjusting the DAC conversion frequency and the low-pass filter cutoff frequency. For the WLAN mode, the DAC operating frequency and the filter bandwidth are set to 100 and 11MHz, respectively, while for the UMTS mode, they are equal to 50 and 2.11MHz. The device is realized in a 1.2-V 0.13-μm standard CMOS technology. The die area occupation, equal to 0.9mm2, has been minimized by optimizing the component sharing for the two operation modes. The proposed circuit achieves a 30.4 dBm third-order output referred intermodulation intercept point (OIP3) for the WLAN mode, and a 31.5 dBm-OIP3 when configured for the UMTS mode, while the spurious-free dynamic range is 58 dB for WLAN mode, and 60 dB for UMTS mode. The power consumption is optimized according to the operation mode and is 19.44 mW in WLAN mode and 16.8 mW in UMTS mode. © 2006 IEEE. |
| Databáze: | OpenAIRE |
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