【技术应用笔记】ADF7020、ADF7021和ADF7021-N的RF端口阻抗数据、匹配以及外部元件选择 AN-859 One Technology Way t P.O. Box 9106 t Norwood, MA 02062-9106, U.S.A. t Tel: 781.329.4700 t Fax: 781.461.3113 t www.analog.com ADF7020-1ADF7021ADF7021-NRF ǖConor O’Mahony RF ADF7020-1 ADF7021 ADF7021-N ADF7020-1 ADF7021 ADF7021-N (PA) (LNA) RF ……