cx24133 Conexant Systems, Inc., cx24133 Datasheet - Page 2

• Manufacturer Part Number: cx24133
• Description: Dual Low-power Qpsk Digital Satellite Tuner
• Manufacturer: Conexant Systems, Inc.

Set-top Box Solutions
Satellite
08-2736
Conexant Product Portfolio
The company’s broad portfolio of semiconductor products also includes client-side DSL, cable, and dial-up modem solutions; fiber optic system-on-
chips; broadcast video encoders and decoders; and digital set-top box components and systems solutions. Additional products include a 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.
© 2008 Conexant Systems, Inc. All Rights Reserved. Conexant and the Conexant
logo are registered 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.
aNy exPreSS or imPlieD warraNTieS, iNcluDiNg merchaNTaBiliTy, fiTNeSS for a
ParTicular PurPoSe aND NoN-iNfriNgemeNT.
special, indirect, incidental or consequential damages as a result of its use.
applications
• Low-cost dual- and multiple-input QPSK set-top boxes
• Dual-input PC cards
o DVR (Digital Video Recorder)
o PiP (Picture in Picture)
o MDU (Multi-dwelling Unit)
CKREF_OUT
RF_IN_A
RF_IN_B
ThiS maTerial iS ProviDeD aS iS aND wiThouT
AGC_B
XTAL2
AGC_A
XTAL1
Conexant shall not be liable for any
RF Power
RF Power
Detector
Detector
Control
and Clock Control
Control
AGC
Crystal Oscillator
VCA
AGC
VCA
I/Q Mixer
I/Q Mixer
CX24133 Functional Block Diagram
0
o
0
90
o
90
o
Doc# PBR-201521
www.conexant.com
General Information:
U.S. and Canada: [phone]
International: 1+ [phone]
Headquarters
4000 MacArthur Blvd.
Newport Beach, CA 92660
o
I/Q DC Offset Cancellation
I/Q DC Offset Cancellation
PLL and VCO
I/Q Baseband Filters
and VGA Gain States
PLL and VCO
I/Q Baseband Filters
and VGA Gain States
Product Specifications
• Supported symbol rates: 1-45 MSps
• RF input frequency: 925 to 2175 MHz
• Dynamic range: -23 to -69 dBm
• Small lead-free 7 mm x7 mm 48-pin QFN package
: 2,
:
: 2,
:
4
4
Interface
Control
Control
Final
Amplifier
Final
Amplifier
Filter
Logic
Filter
I_OUT_A
Q_OUT_A
CP_OUT_A
VTUNE_A
I_OUT_B
Q_OUT_B
SDA
SCL
SADD
CP_OUT_B
VTUNE_B