Overview: digital infotainment products Digital Satellite Tuner RF lC
CX24108
Highly Integrated, plete Broadband Satellite Front-End Solution
Conexant’s CX24108 is our second generation direct downconversion satellite tuner RF IC intended for high-volume digital video, audio and data receivers. When bined with the HM1221 QPSK demodulator/FEC IC, the CX24108 provides a plete broadband satellite front-end solution capable of operating from 1 to 45 Msps in the most demanding satellite environments. It is designed for 80+ transponder systems and is patible with international standards such as DVB and DSS. The highly integrated CX24108 satellite tuner RF IC reduces DBS tuner BOM cost and simplifies RF layout. Following the integrated LNA, the CX24108 downconverts the satellite carrier directly to baseband and provides variable baseband filtering for the I/Q signals. It also has a pletely integrated local oscillator. The VCO and synthesizer are built in and do not require external resonators or varactor diodes. All of this performance is available with just a single +5V supply.
