Title :
A 8th-order Chebyshev Gm-C lowpass filter for DVB-H tuner
Author :
Zhao, Jinshu ; Lia, Huailin ; Song, Fei ; Ye, Le ; Liu, Junhua ; Wang, Xinan
Author_Institution :
Shenzhen Grad. Sch., Peking Univ., Peking, China
Abstract :
A 8th-order Chebyshev Gm-C lowpass filter for the digital video broadcasting-handheld (DVB-H) tuner is fabricated in 0.18 ¿m RF CMOS process. The filter implements lowpass transfer function with tunable cutoff frequency in the range of 3 MHz to 4 MHz. The HD3 is about -59 dB and the stop-band attenuation at 5.25 MHz is better than 29 dB. The current consumption of the filter is 4.2 mA, and the automatic tuning circuits consume the current of 1.55 mA with 1.8 V supply.
Keywords :
CMOS digital integrated circuits; Chebyshev filters; circuit tuning; digital video broadcasting; low-pass filters; radiofrequency integrated circuits; transfer functions; 8th-order Chebyshev Gm-C lowpass filter; RF CMOS process; automatic tuning circuits; current 1.55 mA; current 4.2 mA; current consumption; digital video broadcasting-handheld tuner; frequency 3 MHz to 4 MHz; frequency 5.25 MHz; lowpass transfer function; size 0.18 mum; stop-band attenuation; tunable cutoff frequency; voltage 1.8 V; Attenuation; CMOS process; Chebyshev approximation; Cutoff frequency; Digital filters; Digital video broadcasting; Radio frequency; Transfer functions; Tunable circuits and devices; Tuners;
Conference_Titel :
Solid-State and Integrated-Circuit Technology, 2008. ICSICT 2008. 9th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-2185-5
Electronic_ISBN :
978-1-4244-2186-2
DOI :
10.1109/ICSICT.2008.4734871
