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CX24108 Datasheet, PDF (1/2 Pages) Conexant Systems, Inc – Highly Integrated, Complete Broadband Satellite Front-End Solution | |||
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digital infotainment products
Digital Satellite
Tuner RF lC
CX24108
Highly Integrated, Complete Broadband
Satellite Front-End Solution
Conexantâs CX24108 is our second generation direct down-
conversion satellite tuner RF IC intended for high-volume digital
video, audio and data receivers. When combined with the HM1221
QPSK demodulator/FEC IC, the CX24108 provides a complete
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 compatible with
international standards such as DVB and DSS. The highly integrated
CX24108 satellite tuner RF IC reduces DBS tuner BOM cost and
simpliï¬es RF layout.
Following the integrated LNA, the CX24108 downconverts the
satellite carrier directly to baseband and provides variable
baseband ï¬ltering for the I/Q signals. It also has a completely
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.
Distinguishing Features
⢠Single-chip RF-to-baseband satellite receiver
⢠Zero-IF architecture eliminates the need for
image-reject ï¬ltering
⢠Variable baseband ï¬lters for optimal
interference rejection
⢠Integrated LNA and LO with onboard VCO
and synthesizer
⢠Single +5V supply
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