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TDA18264 is a Full Spectrum Transceiver (FST). This device includes all the key
functions to realize the front end of a multiple stream receiver and transmitter for a cable
The receive function of TDA18264 allows the parallel reception of up to 16 independent
cable channels, each of them being at any frequency in the RF band from 42 MHz to
1002 MHz. Each channel can be 6 MHz or 8 MHz wide QAM modulated, according to ITU
J/83 annex A, B or C. TDA18264 input is connected to the cable through a cable spectrum
pre-processor as TDA18204 that amplifies and corrects the tilt of the cable spectrum. The
output of the TDA18264 is connected to the main SoC using one or two high-speed serial
The transmit function of TDA18264 allows generating the return channel of a DOCSIS 3.0
cable modem, based on the signal coming from the main SoC through a high-speed serial
link. Output of this section only requires a power amplifier as BGA3031 to drive the cable
through a diplexer with the required power level.
TDA18264 realizes the complete 16-channel receive path and 8-channel transmit path
using only 2.55 W.
The proprietary highly digitalized architecture enables accurate spectral analysis (from
50 MHz to 1350 MHz RF band) which can be useful for providing remote diagnostic tools
to cable operators.