3x8292

The frontend 4049 FM5 is specially designed for multimedia applications. It includes TV as well as FM reception possibility. TV reception standard are B/G; I, D/K, L, L`. The frontend 4049 FM5 includes a hyperband tuner which covers the frequency range from 45 to 865 MHz and an IF-part with SAWfilter, IF-amplifier, video- and sound demodulator. So the AF signal is available at the audio output terminal, the CVBS signal is available at the video output terminal. Also a 2nd IF output is provided, which allows external sound demodulation for stereo and NICAM reception. A video buffer is built in which makes a direct connection to 75 inputs possible. The reception frequency range of the 4049 FM5 is divided in VHF low, VHF high and UHF.

VHFlow part of the tuner is used for FM reception also. Complete FM signal processing including demodulation and stereo decoding is built in. Baseband signals L (left) and R (right) as well as MPX (Baseband Multiplex signal) are on pins available.

Band, standard selection and tuning are done via I²C-bus, completely. Also a digital AFC-function can be realized, because the AFC-voltage generated by the IF-demodulator is fed to an analogue/digital converter which is integrated in the IF demodulator-IC and readable via I²C-bus. A DC/DC converter is built in. Therefore supply voltage of the 4049 FM5 is 5V only.