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- 08 Sep 2023, 01:57
- Forum: Смесители
- Topic: Высокодинамичный активный смеситель с ООС
- Replies: 9
- Views: 30129
Re: Высокодинамичный активный смеситель с ООС
There is a note that the crystal filter following mixer has an impedance 560ohm and the output impedance of mixer is 40-50ohm. Transformer T3 looks like wound as bifilar so the ratio is 1:2, for impedance it will be 1:4. That gives 200ohm which is still far from the filter. Is that difference consid...