digital infotainment products Digital Satellite Tuner RF lC CX24108 Highly Integrated, Complete 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 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 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 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 filtering • Variable baseband filters for optimal interference rejection • Integrated LNA and LO with onboard VCO and synthesizer • Single +5V supply features and specifications Further Information [email protected] (800) 854-8099 (North America) (949) 483-6996 (International) Order # 100969A 00-0600 Digital Infotainment Printed in USA World Headquarters Conexant Systems, Inc. 4311 Jamboree Road Newport Beach, CA 92660-3007 Phone: (949) 483-4600 Fax 1: (949) 483-4078 Fax 2: (949) 483-4391 Americas U.S. Northwest – Santa Clara Phone: (408) 249 -9696 Fax: (408) 249 -7113 U.S. Southwest – Los Angeles Phone: (805) 376 -0559 Fax: (805) 376 - 8180 U.S. Southwest – Newport Beach Phone: (949) 483-9119 Fax: (949) 483-9090 U.S. San Diego Phone: (858) 713-4730 Fax: (858) 713-4008 CX24108 block diagram U.S. North Central – Illinois Phone: (630) 773-3454 Fax: (630) 773 -3907 Product Features Product Specifications • Single-chip RF-to-baseband satellite receiver • Zero-IF architecture eliminates the need for image-reject filtering • Integrated LNA • Integrated LO with onboard VCO and synthesizer • Variable baseband filters for optimal interference rejection • Single +5V supply • • • • • • • • • RF input: 950 to 2150 MHz Input power range: -20 to -81 dBm Noise figure: 10 dB, typical Input IP3 at minimum gain: 12 dBm, typical I/Q phase difference: ±3 degrees, typical I/Q amplitude difference: ±1.5 dB, typical Filter tune range: 0.5 to 30 MHz Output voltage, R L ≥1kΩ: 0.5 Vp-p Typical junction temperature: 90˚ C at room temperature • Operating temperature range: 0˚ to 70˚ C • Package type: 48-pin eTQFP Conexant and the Conexant symbol are trademarks of Conexant Systems, Inc. U.S. South Central/Mexico – Texas Phone: (972) 733-0723 Fax: (972) 407- 0639 U.S. Northeast – Massachusetts Phone: (978) 367-3200 Fax: (978) 256 - 6868 U.S. Carolinas – North Carolina Phone: (919) 858 -9110 Fax: (919) 858 - 8669 U.S. Southeast/South America – Florida Phone: (727) 799 - 8406 Fax: (727) 799 - 8306 U.S. Mid-Atlantic – Pennsylvania Phone: (215) 244- 6784 Fax: (215) 244- 9292 Canada – Ontario Phone: (613) 271-2358 Fax: (613) 271-2359 Europe Europe Central – Germany Phone: +49 89 829 -1320 Fax: +49 89 834-2734 Europe North – England Phone: +44 1344 486444 Fax: +44 1344 486555 Europe – Israel/Greece Phone: +972 9 9524000 Fax: +972 9 9573732 Europe South – France Phone: +33 1 41 44 36 51 Fax: +33 1 41 44 36 90 Europe Mediterranean – Italy Phone: +39 02 93179911 Fax: +39 02 93179913 Europe – Sweden Phone: +46 (0) 8 5091 4319 Fax: +46 (0) 8 590 041 10 Europe – Finland Phone: +358 (0) 9 85 666 435 Fax: +358 (0) 9 85 666 220 Asia Pacific Taiwan Phone: (886 -2) 2-720-0282 Fax: (886 -2) 2-757- 6760 Australia Phone: (61-2) 9869 4088 Fax: (61-2) 9869 4077 China – Central Phone: 86 -21- 6361-2515 Fax: 86 -21- 6361-2516 China – South Phone: (852) 2 827- 0181 Fax: (852) 2 827- 6488 China – South (Satellite) Phone: (86) 755 -5182495 Fax: (86 ) 755 -5183024 China – North Phone: (86 -10) 8529 - 9777 Fax: (86 -10) 8529 - 9778 India Phone: (91-11) 692-4789 Fax: (91-11) 692 -4712 Korea Phone: (82-2) 565-2880 Fax: (82-2) 565-1440 Korea (Satellite) Phone: (82-53) 745-2880 Fax: (82-53) 745-1440 Singapore Phone: (65) 737 7355 Fax: (65) 737 9077 Japan Phone: (81-3) 5371 1520 Fax: (81-3) 5371 1501 www.conexant.com