MXL5007T QFN32 original

MXL5007T QFN32 original

MxL5007T is a tuner IC designed mostly for digital signals (DVB-T, ATSC), but it can be used for analog reception too. It has a programmable IF output and it can receive anything from 44 to 885 MHz. There is no datasheet for it, but there are Linux drivers.

The local oscillator's frequency depends on the intermediate frequency (IF) output from tuner. MxL5007T supports different IF values, which can be found from the Linux drivers mentioned in the Software section. The IF values are as follows: 4 MHz, 4.5 MHz, 4.57 MHz, 5 MHz, 5.38 MHz, 6 MHz, 6.28 MHz, 9.1915 MHz, 35.25 MHz, 36.15 MHz and 44 MHz. For the detector I used, in low-side injection mode (local oscillator frequency is smaller than received frequency - the IF from tuner in this case) only the 35.25 MHz, 36.15 MHz and 44 MHz values can be used. Thus, the L.O. can have one of the following frequencies: 24.55 MHz, 25.45 MHz and 33.3 MHz. You can get both the coil and the capacitor from: