A fourth-order low-pass continuous-time filter for a UMTS/WLAN receiver of a reconfigurable terminal is presented. The filter uses the cascade of two Active-G m-RC biquad cells. A single opamp is used for each biquad and its unity-gain-bandwidth is comparable to the filter cut-off frequency. Thus, the opamp power consumption is strongly reduced w.r.t. other closed-loop filter configurations. The cut-off frequency deviation due to the technological spread, aging and temperature variation is adjusted by an on-chip tuning circuit. The device in a 0.13 μm CMOS technology occupies a 0.9 mm 2 area and it consumes 3.4 mW and 11 42 mW for the UMTS and WLAN, respectively. The full chip has been designed using an automatic design tool, which is validated by the agreement between the experimental results and the expected performance. © 2006 IEEE.

D'Amico, S., Giannini, V., Baschirotto, A. (2006). A 4th-order active-G m-RC reconfigurable (UMTS/WLAN) filter. IEEE JOURNAL OF SOLID-STATE CIRCUITS, 41(7), 1630-1637 [10.1109/JSSC.2006.873676].

A 4th-order active-G m-RC reconfigurable (UMTS/WLAN) filter

BASCHIROTTO, ANDREA
2006

Abstract

A fourth-order low-pass continuous-time filter for a UMTS/WLAN receiver of a reconfigurable terminal is presented. The filter uses the cascade of two Active-G m-RC biquad cells. A single opamp is used for each biquad and its unity-gain-bandwidth is comparable to the filter cut-off frequency. Thus, the opamp power consumption is strongly reduced w.r.t. other closed-loop filter configurations. The cut-off frequency deviation due to the technological spread, aging and temperature variation is adjusted by an on-chip tuning circuit. The device in a 0.13 μm CMOS technology occupies a 0.9 mm 2 area and it consumes 3.4 mW and 11 42 mW for the UMTS and WLAN, respectively. The full chip has been designed using an automatic design tool, which is validated by the agreement between the experimental results and the expected performance. © 2006 IEEE.
Articolo in rivista - Articolo scientifico
Analog filter; Reconfigurable receiver; UMTS; WLAN;
English
2006
41
7
1630
1637
1644874
none
D'Amico, S., Giannini, V., Baschirotto, A. (2006). A 4th-order active-G m-RC reconfigurable (UMTS/WLAN) filter. IEEE JOURNAL OF SOLID-STATE CIRCUITS, 41(7), 1630-1637 [10.1109/JSSC.2006.873676].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/31164
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