Electronically Tunable Minimum Component Biquadratic Filters for Interface Circuits

• 作者: Mehmet Sa?ba?
• 来源期刊: 电路与系统(英文)
• 学科: 工学
• 关键词: SECOND-ORDER FILTERS CC-CDBA Electronic TUNABILITY CURRENT-MODE CIRCUITS Interface CIRCUITS
• 年，卷（期）: dlyxtyw_2011,（3）
• 页码范围: 237-241
• 页数: 5页
• 分类号: TN7

摘要

In this paper, two new electronically tunable filter configurations are proposed. The proposed filters operate current-mode (CM), voltage-mode (VM), transimpedance-mode (TIM) and transadmittance-mode (TAM). The first configuration realizes second-order VM band-pass and TAM high-pass filter characteristics from the same configuration. The second one realizes second-order TIM band-pass and CM low-pass filter characteristics from the same configuration. They also use minimum number of electronic components (two capacitors and one active component namely;current controlled current difference transconductance amplifier). The workability of the proposed structures has been demonstrated by simulation results.