2steps
Newbie level 6
Hi, all:
I design tuning circuits for gm-c filter to compensate the gm's variation due to process,temperature and aging.
My reference is form the book"Wireless.Communication.Circuits.And.Systems", and details in accessories. But I have some questions below,please help me check them.
1.The Gm cell in the “Tuning circuits” (accessories) is single-ended or should be balanced ,just like those gm cells in filter ?
2. I was confused by those sentences “The arrangement uses a control loop comprising a skewed ‘diode-connected’ transconductor −G0 which generates a quiescent voltage which is offset from that of the reference transconductor” What does “offset” mean? How to explain it ?
Thanks!!
I design tuning circuits for gm-c filter to compensate the gm's variation due to process,temperature and aging.
My reference is form the book"Wireless.Communication.Circuits.And.Systems", and details in accessories. But I have some questions below,please help me check them.
1.The Gm cell in the “Tuning circuits” (accessories) is single-ended or should be balanced ,just like those gm cells in filter ?
2. I was confused by those sentences “The arrangement uses a control loop comprising a skewed ‘diode-connected’ transconductor −G0 which generates a quiescent voltage which is offset from that of the reference transconductor” What does “offset” mean? How to explain it ?
Thanks!!