cx24113 Conexant Systems, Inc., cx24113 Datasheet

cx24113

Manufacturer Part Number

cx24113

Description

Digital Satellite Tuner

Manufacturer

Conexant Systems, Inc.

Datasheet

1.CX24113.pdf (2 pages)

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Set-top Box Solutions

Satellite

Digital Satellite Tuner RF IC

The company’s broad portfolio of semiconductor products also includes client-side xDSL

CX24113

does not require a balun, thus reducing external bill of materials (BOM) cost. Its highly

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

complete line of asymmetric and symmetric DSL central office solutions, which are

used by service providers worldwide to deliver broadband data, voice, and video over

copper telephone lines.

The CX24113 has a built-in auto-tuning machine that eliminates the need for software

integrated design saves valuable board space and simplifies RF layout.

and cable modem solutions, home network processors, broadcast video encoders and

Highly Integrated, Worldwide Broadband Satellite

Front-End Solution

Conexant’s portfolio includes a comprehensive suite of semiconductor solutions for

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.

calibration and accelerates the calibration time. The on-chip fractional synthesizer

enables fine frequency step size without adversely affecting lock time. The CX24113

broadband communications, enterprise networks and the digital home. The CX24113

RF INPUT

OUT

Reference

Oscillator

Reference

to Demod

LNA

VCO

Programming

and Control

CX24113 Block Diagram

VCA

PLL Dividers, Phase

Detector and Charge Pump

and HomePNA

Amplifier

AGC

™

. Additional products include a

Variable Low

Pass Filter

I Channel

Output

Q Channel

Output

Distinguishing Features

• Single-chip RF-to-baseband

• Zero-IF architecture eliminates the

• Variable baseband filters for optimal

• Auto-tuning machine eliminates the

• Very low power consumption

• Small (6 mm x 6 mm) footprint

• Lead-free package

Part Number CX24113

Description

satellite receiver, integrates LNA

for FTA applications

need for image reject filtering

interference rejection

need for software calibration

Digital Satellite Tuner RF IC

Related parts for cx24113

cx24113 Summary of contents

Page 1

... 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 ...

Page 2

... Set-top Box Solutions Satellite CX24113 Features • RF input: 925–2175 MHz • Input power range: -20 to -90 dBm • Symbol rate: 1–45 MSps • Noise figure: 10 dB, typical • Input IP3 at minimum gain: 10 dBm, typical • Baseband filter bandwidth: 3–40 MHz • Output voltage: 0.5 Vp > • ...

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