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PDF CX24113 Data sheet ( Hoja de datos )
| Número de pieza | CX24113 | |
| Descripción | Digital Satellite Tuner RF IC | |
| Fabricantes | Conexant Systems | |
| Logotipo |  |
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Set-top Box Solutions
Satellite
Digital Satellite Tuner RF IC
CX24113
Highly Integrated, Worldwide Broadband Satellite
Front-End Solution
Conexant’s portfolio includes a comprehensive suite of semiconductor solutions for
broadband communications, enterprise networks and the digital home. The CX24113
is Conexant’s third generation direct down-conversion satellite tuner RF IC intended
for operator-based digital satellite networks and free-to-air systems. The CX24113 is
a highly integrated satellite tuner solution that incorporates an advanced Fractional-N
synthesizer, I2C serial interface, a fully integrated local oscillator, and variable baseband
filters. It has a standalone low-noise amplifier (LNA) that can be used for a loop-through
design or can provide enhanced sensitivity for free-to-air applications. The device has
an improved power supply rejection ratio (PSRR), requires a single +3.3V supply, and
features very low power consumption.
The CX24113 has a built-in auto-tuning machine that eliminates the need for software
calibration and accelerates the calibration time. The on-chip fractional synthesizer
enables fine frequency step size without adversely affecting lock time. The CX24113
does not require a balun, thus reducing external bill of materials (BOM) cost. Its highly
integrated design saves valuable board space and simplifies RF layout.
The company’s broad portfolio of semiconductor products also includes client-side xDSL
and cable modem solutions, home network processors, broadcast video encoders and
decoders, digital set-top box components and systems solutions, and dial-up modems.
In addition to its IEEE 802.11a/b/g-compliant WLAN chipsets, software and reference
designs, Conexant offers a suite of networking components that includes solutions
for applications based on HomePlug® and HomePNA™. Additional products include a
w complete line of asymmetric and symmetric DSL central office solutions, which are
wused by service providers worldwide to deliver broadband data, voice, and video over
copper telephone lines.
w.DatRF INPUT
aSIN
hOUT
LNA
eReference
etOscillator
VCA
VCO
AGC
Amplifier
Variable Low
Pass Filter
90 0
PLL Dividers, Phase
Detector and Charge Pump
4UReference
to Demod
Programming
and Control
.comCX24113 Block Diagram
I Channel
Output
Q Channel
Output
Distinguishing Features
• Single-chip RF-to-baseband
satellite receiver, integrates LNA
for FTA applications
• Zero-IF architecture eliminates the
need for image reject filtering
• Variable baseband filters for optimal
interference rejection
• Auto-tuning machine eliminates the
need for software calibration
• Very low power consumption
• Small (6 mm x 6 mm) footprint
• Lead-free package
Part Number CX24113
Description Digital Satellite Tuner RF IC
1 page | ||
| Páginas | Total 2 Páginas | |
| PDF Descargar | [ Datasheet CX24113.PDF ] | |
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