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A 046-mm 4-dB NF Uni fied Receiver Front-End for Full-Band Mobile TV in 65-nm CMO
65纳米CMOS工艺下实现的全频段移动电视接收前端，具有低噪声和高线性度。
65nm CMOS, 1.2/2.5V, 4dB NF, 17-35dB增益范围, 32/3.4dBm IIP2/IIP3
移动电视接收前端低噪声放大器电流复用CMOS
▸增益提升电流平衡巴伦-LNA，具有高线性度和宽带输出平衡
▸电流复用混频器-低通滤波器，合并正交/谐波抑制混频和电流模式后滤波
▸直接注入锁定4/8相位LO发生器，避免分频降低主LO频率
Abstract
Au n ified receiver front-end (RFE) for mobile TV
covering the VHF-III, UHF and L bands is described. Perfor-
mance, power and area ef ficiencies are advanced in threefold:
1) a gain-boosting current-balancing balun-LNA exhibits high lin-
earity, wideband output balancing and adequate against gain
control; 2) a current-reuse mixer-low-pass- filter merges quadra-
ture-/harmonic-rejection mixing and third-order current-mode
post-filtering in one block, enhancing linearity and noise just
where both are