MXL5007T LINUX DRIVER

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I came up with an Arduino library for MxLT. Simpler design, but impossible to find filters. The tuner is a an I2C slave device. This is actually called double superheterodyne receiver. The mixing result must be an IF at a common frequency, such as the You will hear neighboring stations while adjusting local oscillator coil, because signals from a piece of

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Frequency conversions are performed by mixing two signals the incoming RF with a local oscillator. Take the IF from tuner and demodulate it at its frequency. The frequency step of the tuner is Another two tracks come out from MxLT and are capacitor coupled. This IC can set IF center at 9. There is no datasheet for it, but there are Linux libux.

Whether or not you stumbled upon this IC in a receiver, it is good to know that sometimes you can work things out even without a datasheet. To see if I got the pinout right and test the reception I had to build a demodulator.

But, a closer look at the tuner which was basically an area of the PCB enclosed in metallic box revealed only a few tracks coming out of the tuner area. Subscribe Don’t forget to check your email and confirm subscription. You know you got the right L. If you do this, remember always to tune set tuner frequency IF inversion does not affect the signal unless your detector is not centered on the right IF frequency.

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Probably this is the IF output. Probable pinout of MxLT tuner on PCB Antenna input and loop output were very easy to identify since the original antenna connectors were soldered into those places.

I have no idea if this is an I-Q output or a simple differential output. Do not connect the other to the ground. I went for the first method and built a double conversion receiver.

Linux Kernel Driver DataBase: CONFIG_MEDIA_TUNER_MXLT: MaxLinear MxLT silicon tuner

After this frequency liunx, the resulting intermediate frequency signal is passed to a demodulator. Knowing this there are three approaches: First conversion takes place inside the tuner and the second one at the mixer of TA Pinux mixing result must be an IF at a common frequency, such as the Tuner PCB in a new metal case Everything was connected with tiny pieces of thin wire to a small piece of circuit board that held also the pins on the metal case.

First of all I had to trace some lines due to the lack of pinout information. Although you pass frequency in Hz, it is rounded to multiples of Hz.

CONFIG_MEDIA_TUNER_MXL5007T: MaxLinear MxL5007T silicon tuner

The power supply line was assumed to be the track that has a greater width than the others and has some capacitors connected to ground. Take the IF from tuner, consider it as any RF signal and perform an extra conversion. Pinux seem to be software limits, because the product brief sheet claims this IC can receive from 44 to MHz.

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Testing continuity revealed it comes from a 3.

Release 4.17 drivers/media/tuners/mxl5007t.h

Two other tracks mxl5007f pulled up with 4. The tuner is a an I2C slave device. Post a Comment Please read the comments policy before publishing your comment. Also Fi2 must be replaced.

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This should be built inside a can you know those RF can coils inside every radio. Then I cut really the PCB and placed the tuner inside a metal box with easy to make connections.

I will show you how I took it out from a receiver so I can use it in my projects. There are no datasheets to describe I2C interface, but msl5007t existing Linux drivers for hardware using this tuner provide enough information.