cx24113a Conexant Systems, Inc., cx24113a Datasheet

cx24113a

Manufacturer Part Number

cx24113a

Description

Digital Satellite Tuner Rf Ic

Manufacturer

Conexant Systems, Inc.

Datasheet

1.CX24113A.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

CX24113A

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 CX24113A has a built-in auto-tuning machine that eliminates the need for software

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 CX24113A 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. 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

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.

broadband communications, enterprise networks and the digital home. The CX24113A

RF INPUT

Reference

Oscillator

Reference

to Demod

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 CX24113A

Description

satellite receiver

need for image reject filtering

interference rejection

need for software calibration

Digital Satellite Tuner RF IC

Related parts for cx24113a

cx24113a Summary of contents

Page 1

... The device has an improved power supply rejection ratio (PSRR), requires a single +3.3V supply, and features very low power consumption. The CX24113A 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 ...

Page 2

... Set-top Box Solutions Satellite CX24113A 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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