Title :
A 36/44 MHz Switched-capacitor Bandpass Filter for Cable-TV Tuner Application
Author :
Zheng, Hui ; Luong, Howard C.
Author_Institution :
Hong Kong Univ. of Sci. & Technol., Kowloon
Abstract :
A 36/44-MHz wide-band switched-capacitor (SC) band-pass filter is proposed for cable-TV tuner systems. The 14th-order SC biquadratic filter employs 2-path technique to achieve high attenuation and wide bandwidth at high frequency. Implemented in a 0.18-mum CMOS process, the filter measures center frequencies of 36 MHz and 44 MHz with a bandwidth of 5.0 MHz and 6.2 MHz, respectively. Adjacent-channel attenuation of -58 dBc and pass-band ripple of less than 0.6 dB are achieved.
Keywords :
CMOS integrated circuits; band-pass filters; biquadratic filters; cable television; switched capacitor filters; 2-path technique; CMOS process; SC biquadratic filter; adjacent-channel attenuation; bandwidth 5.0 MHz; bandwidth 6.2 MHz; cable-TV tuner; frequency 36 MHz; frequency 44 MHz; pass-band ripple; size 0.18 mum; switched-capacitor bandpass filter; Attenuation; Band pass filters; Bandwidth; Cable TV; Circuit noise; Clocks; Frequency; SAW filters; Sampling methods; Tuners;
Conference_Titel :
Solid-State Circuits Conference, 2006. ASSCC 2006. IEEE Asian
Conference_Location :
Hangzhou
Print_ISBN :
0-7803-9734-7
Electronic_ISBN :
0-7803-97375-5
DOI :
10.1109/ASSCC.2006.357894
