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Yes, I just did a 20W DVB-T/T2 PA before. We used SC1894 as linearzier, or pre-booster. We were able to obtain > 40 dB MER all over the UHF band. The company Scintera who designed this nice chip. Now it is purchased by Maxim.
I have done some development work with the SC1894, it did work quite well for the applications it was designed for, like cariban I got better than 40 suppression of intermod products. It did have some limitations for my application, which was a muilticarrier amplifier with narrowand carriers that could appear at any time or frequency in the band. The resolution bandwidth in the correction receiver was too wide for the narrowband modulation and the local oscillator leakage, while quite good was out of spec for the application.
It did not work for me that time, but that was not the fault of the chip.
I did have problems with getting a development board, it took ages to arrive and then when it did only the USB interface was in the box. So you may need to plan ahead, or maybe I'm just unlucky. I also found the software a bit flaky it would only work on some machines; the help line was quite responsive but didn't manage to get to the bottom of it.
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