| Title |
Design of a Current-Mode Analog Filter for WCDMA Baseband Block |
| Authors |
김병욱(Kim, Byoung-Wook) ; 방준호(Bang, Jun-Ho) ; 조성익(Cho, Seong-Ik) ; 최석우(Choi, Seok-Woo) ; 김동용(Kim, Dong-Yong) |
| Keywords |
WCDMA Baseband Filter ; CMOS Analog ; Low-Voltage Filter ; Current-Mode ; Integrator |
| Abstract |
In this paper, a current-mode integrator for low-voltage, low-power analog integrated circuits is presented. Using the proposed current-mode integrator, the baseband analog filter is designed for WCDMA wireless communication. To verify the proposed current-mode integrator circuit, Hspice simulation using 1.8V TSMC 0.18{\mu}m CMOS parameter is performed and achieved 44.9dB gain, 15.7MHz unity gain frequency. The described 3rd-order current-mode baseband analog filter is composed of the proposed current-mode integrator, and SFG(Signal Flow Graph) method is used to realize the baseband filter. The simulated results show 2.12MHz cutoff frequency which is suitable for WCDMA baseband block. |