A Wide Tuning Range Low-pass Gm-C Filter for Multi-Mode Wireless Receivers with Automatic Frequency Calibration
A 4th-order channel selection low-pass Gm-C filter for multi-mode wireless receivers is presented. The filter is designed with a Chebyshev prototype and supports different wireless communication modes including W-CDMA, TD-SCDMA, LTE, and IEEE802.Ha/b/g wireless-LANs. A linear operational transconductance amplifier (OTA) which has variable transconductance is used to achieve the wide tuning range of the filter. Implemented in the SM1C 0.13μm CMOS process, the measurement results show that the filter can operate successfully over a cutoff frequency range of 1 MHz to 15MHz, Which is compliant with the requirements of different wireless communication modes. The out-of-band input 3rd order intercept point is 15.2dBm. The input referred noise is 17.4nV/Hz1/2 and the noise figure is 25.6dB. The power consumption is 11.4mW at 15MHz cutoff frequency under a 1.2V supply voltage. The size of the proposed filter is 1.5mm 1 mm.
u Wang Na an Hao Min
State Key Lab. of ASIC and System, Department of Microelectronics, Fudan University Room 365, 825 Ro State Key Lab. of ASIC and System, Department of Microelectronics, Fudan University
国际会议
2011 IEEE 9th International Conference on ASIC(2011年第九届IEEE国际专用集成电路大会)
厦门
英文
1147-1150
2011-10-25（万方平台首次上网日期，不代表论文的发表时间）