To set frequency of local oscillator, IF is added to receiving frequency and the sum is divided by tuning step Subscribe Don’t forget to check your email and confirm subscription. The amplified and filtered signals are mixed with local oscillators. You can see that it’s similar to the other, but the rightmost compartment has some additional filters for FM IF. The top one has FM radio support. The tuners I found are actually complete receivers, with included demodulator. Control byte is set to 0xCA.
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Note that ADC reads what you configured it with the ports byte. All that’s left is to power up the module. Overview of TSA registers refer to datasheet.
The ground connects to the metal case. Please read the comments policy before publishing your comment. In the photo below, you can see two tuners. Anonymous July 27, at 4: Here is an overview. Control byte is set to 0xCA. The amplified and filtered signals are mixed with local oscillators. Functional modules of the TV tuner Let’s take a look at how these tpi8ps1b2p work. Other tuners may or may not have all pins. All of them used the same integrated tpi8pwb12p. P1 forces mono mode.
The IC has 4 write registers and 1 read register. Some changes are required for ports byte. AFC and VT pins are in the same situation. I chose this one because tpl8psb12p has FM support, therefore some additional pins for radio audio.
Since I had some old TV tuner cards that were no longer compatible with my PC or had poor performance, I decided to take the tuners out of them. First, for tuning TV channels. Even without this, the datasheet for TSA is tpi8pb12p. The RF signal from antenna is split in three paths, then filtered and amplified for each of the frequency bands. P2 also needs to be 1. P6 should be 0, because it is configured as ADC input. Analog video is no longer in use in most parts of the world.
LG tpi8psb12p tuner/conexant fusion 878a chipset.
Port bits P7, P5 and P4 select frequency bands. Subscribe Don’t forget to check your email and confirm subscription. When both are 0 not setthe tuner works in TV mode. Due to the capability of tuning to frequencies between 45 to MHz, programming a button based user interface for Arduino is rather difficult. The tuners I found are actually complete receivers, with included demodulator.
The modules is powered from 5V. To switch to FM mode, set P2 to 1. Finding the pinout of these modules is not very hard if you analyze the board they came from.
Apac TPI8PSB12P Free Driver Download for Windows XP, () –
The latter is TV only, with no radio support. The top one has FM radio support. FL is 1 when tuner is locked to frequency. Ports bytes is set according to the band in which the frequency fits.