R f i ecse334 introduction to microelectronics 38

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R f i ECSE334 – Introduction to Microelectronics 38 Khazaka - 2008 Shunt-Shunt Topology with Loading Effect 2 12 v y + 2 v 11 y + 1 v 22 y 1 21 v y 1 i + o v i i A o R i v + i R + f i if R i i of R s i 2 i s R L R
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20 ECSE334 – Introduction to Microelectronics 39 Khazaka - 2008 Y-Parameters + 2 v + 1 v 1 i 2 i Port1 Port2 = 2 1 22 21 12 11 2 1 v v y y y y i i 0 2 1 12 1 = = v v i y 0 1 1 11 2 = = v v i y 0 1 2 21 2 = = v v i y 0 2 2 22 1 = = v v i y 2 12 v y 11 y 22 y 1 21 v y ECSE334 – Introduction to Microelectronics 40 Khazaka - 2008 Shunt-Shunt Topology with Loading Effect 2 12 v y + 2 v 11 y + 1 v 22 y 1 21 v y 1 i + o v + + f i if R of R s i 2 i s R L R Results in Loading Effect Results in Loading Effect i i A o R i v i R i i
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21 ECSE334 – Introduction to Microelectronics 41 Khazaka - 2008 Shunt-Shunt Topology with Loading Effect 2 12 v y + 2 v 11 y + 1 v 22 y 1 21 v y 1 i + o v + + if R of R s i 2 i s R L R i i A o R i v i R i i Neglect ECSE334 – Introduction to Microelectronics 42 Khazaka - 2008 Shunt-Shunt Topology with Loading Effect 2 12 v y + 2 v 11 y + 1 v 22 y 1 i + o v + + if R of R s i 2 i s R L R i i A o R i v i R i i
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22 ECSE334 – Introduction to Microelectronics 43 Khazaka - 2008 Forward Gain Stage 11 y 22 y + o v + + i i s R L R i i A o R i v i R i i i i i s i R y R R = || || 11 L o o R y R R || || 22 = ( ) ( ) A R y R y R R y R y R A o L L i s s + + = 22 22 11 11 || || || || ECSE334 – Introduction to Microelectronics 44 Khazaka - 2008 Forward Gain Stage 11 y 22 y + o v + + i i s R L R i i A o R i v i R i i i i + o v + + i i i Ai o R i v i R i i
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23 ECSE334 – Introduction to Microelectronics 45 Khazaka - 2008 Feedback Stage 2 12 v y + 2 v + 1 v 1 i 2 i 0 2 1 12 1 = = = v v i y β ECSE334 – Introduction to Microelectronics 46 Khazaka - 2008 Example: Shunt-Shunt s v + 1 Q 1 C R s R k 7 . 4 1 = C R f R k 10 = s R k 47 = f R V 12 + o v
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