Maxim Integrated Products has recently launched its new MAX2120 satellite TV tuner. This is an inexpensive, zero-IF, direct-conversion tuner for satellite TVs. The satellite TV tuner receives QPSK signals in the 925MHz to 2,150MHz range and down-converts these signals to baseband for demodulation.

This satellite TV tuner produces only very low 8dB noise and thus eliminates the need for an external LNA. The VCO auto-tuner function makes the unit easy to use overall. The MAX2120 satellite TV tuner is suitable for DVB-S and free-to-air applications also, where low cost and easy user operation are keys for success.

This satellite TV tuner operates on one 3.3V supply and uses just 330mW. It is designed to function with a low-cost 4MHz crystal, but you can choose any crystal in the 4MHz t - 8MHz range. This satellite TV tuner is available in a 5mm x 5mm 28-pin TQFN package and prices start at $3.50 each, in bulk.