Most high-end cable tuner chips are in QFN packs. I am in search of a manually solderable tuner IC which can provide good IMRR over 50-400 MHZ range for my SDR project. I got hold of TUA6020 from Infineon Tech and TDA65xx Philips Tuners in TSSOP packs. However, they seem to have poor IMRR. I dont want to tune the RF filter manually, instead prefer autotune through software signals.
Kindly help me in grading these and other chips, if any, on the IMRR aspect. Regards, Prasanna
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