CX24109 반도체 회로 부품 판매점
Digital Satellite Tuner
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 Conexant |
Set-top Box Solutions
Satellite
Digital Satellite Tuner
CX24109
Highly Integrated, Direct Down-Conversion Satellite Tuner
Conexant’s broadband communications portfolio includes a comprehensive
suite of semiconductor solutions that enable the digital home and information
network. Combining extensive experience in broadband systems and mixed-
signal integrated circuit design, Conexant introduces the CX24109 Digital
Satellite Tuner – a highly integrated, direct down-conversion satellite tuner
intended for high-volume digital video, audio, and data receivers. The
CX24109 consists of an LNA, variable RF attenuator, quadrature
downconverter, variable IF gain amplifiers, variable low-pass filters, VCO,
and synthesizer. This highly integrated satellite tuner RF IC does not require
a balun, therefore simplifying RF layout and reducing the overall BOM cost.
When combined with Conexant’s CX24123 QPSK demodulator/FEC decoder,
the chipset provides a complete broadband satellite front-end solution capable
of operating from 1 to 45 Msps in the most demanding satellite environments.
The CX24109 and CX24123 provides a streamlined, cost optimized front-end
solution offered in a compact design that saves valuable board space and is
easy to implement.
Distinguishing Features
• DVB/DSS/DCII – compliant
• 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
• 48-pin ETQFP
CX24109 Block Diagram
Part Number CX24109
Description Digital Satellite Tuner
Set-top Box Solutions
Satellite
CX24109
Zero I/F Tuner
RF
Connector
A/V Connectors
Xtal
Stereo
DAC
RJ-11
CX20493
SmartDAA
Line Side Device
SDRAM
DBS Core System Receiver and Decoder
FLASH
E2PROM
TDA8004
CA Card
Reader
Front Panel
buttons, indicators, IRin
Complete IC System Solution for Worldwide DBS Platforms
CX24109 Product Features
• 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
Product Specifications
• RF input: 950 to 2150 MHz
• Input power range: -20 to -81 dBm
• Noise figure: 10 dB, typical
• Input IP3 at minimum gain: 10 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, RL≥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
Applications
• DBS set-top boxes
• Commercial digital video, audio and data receivers
• Digital VCRs
© 2003, Conexant Systems, Inc. All Rights Reserved. Conexant and the
Conexant logo are trademarks of Conexant Systems, Inc. All other trademarks
are owned by their respective owners. Although Conexant strives for accuracy
in all its publications, this material may contain errors or omissions and is
subject to change without notice. THIS MATERIAL IS PROVIDED AS IS AND WITHOUT
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING MERCHANTABILITY, FITNESS FOR A
PARTICULAR PURPOSE AND NON-INFRINGEMENT. Conexant shall not be liable for any
special, indirect, incidental or consequential damages as a result of its use.
www.conexant.com
General Information:
U.S. and Canada: (800) 854-8099
International: (949) 483-6996
Headquarters – Newport Beach
4311 Jamboree Rd, P.O. Box C
Newport Beach, CA 92660-3095
Order# 102204A
03-0856
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CX24109 data
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국내 전력반도체 판매점
상호 : 아이지 인터내셔날
전화번호 : 051-319-2877
[ 홈페이지 ]
IGBT, TR 모듈, SCR, 다이오드모듈, 각종 전력 휴즈
( IYXS, Powerex, Toshiba, Fuji, Bussmann, Eaton )
전력반도체 문의 : 010-3582-2743
관련 데이터시트
CX24108
Digital Satellite Tuner RF IC - Conexant
CX24109
Digital Satellite Tuner - Conexant
CX24109
(CX24121 / CX24109) DBS Demodulator And Fec Decoder - Conexant Systems