M I C R O T U N E
RF SILICON AND SUBSYSTEMS SOLUTIONS
FOR BROADBAND COMMUNICATIONS AND AUTOMOTIVE ELECTRONICS
M2060-STV0297-RD
DVB-C REFERENCE DESIGN
PRODUCT BRIEF
The MT2060-STV0297-RD is an
inexpensive, integrated tuner-
demodulator Reference Design
solution for DVB-C applications.
The MT2060-STV0297-RD is a
cost-optimized, high-performance
Reference Design that eases DVB-C
implementation in cable set-top
boxes. The combination of the
MicroTuner™ MT2060 and the
STMicroelectronics STV0297
demodulator, enhanced by special
adjacent channel filtering and in-
band flatness, meets or exceeds
required DVB-C performance. The
design also features low power
consumption and low component
count.
ABOUT THE MT2060
The MicroTuner™ MT2060 is an
advanced, low-power single-chip
broadband tuner that enables high-
performance RF reception in DVB-C
set-top boxes.
It receives frequencies ranging
from 90 MHz to 862 MHz,
converting the selected channel to a
standard 36.125 MHz intermediate
frequency (IF).
The highly-integrated, dual-
conversion architecture of the
MT2060 includes on-board band
selection filters. This minimizes
external component count, resulting
in an extremely cost-effective, low-
risk DVB-C design. The MT2060’s
low distortion and low close-in
phase noise makes it an excellent
choice for QAM signal processing
systems. The controlled input
impedance across the entire input
band, and the outstanding image
rejection with low in-band emissions
and spurs makes it the silicon tuner
of choice for such applications.
M2060-STV0297-RD DVB-C
REFERENCE DESIGN
ABOUT THE STV0297
The STV0297 is a single chip
QAM demodulator that converts an
IF signal to an MPEG-2 datastream.
It is fully compliant with the DVB-C
specification (ITU J83A/C
bitstream) for the transmission of
compressed television, sound and
data signals over cable.
The integrated A/D converter in
the IC allows it to handle 16 to 256
QAM signals and a wide range of
symbol rates without an external
feedback loop or an additional
down-converter stage. The IC
delivers an error-corrected MPEG-2
transport stream with
programmable data clock
frequency to an MPEG-decoder.
The STV0297 is fully controlled
using the two-wire serial bus. It
integrates seamlessly with the
MT2060 tuner in this Reference
Design, using a 36.125 MHz IF
frequency.
M I C R O T U N E
FEATURES
•
DVB-C compliant
•
90 MHz to 862 MHz input range
•
Easy interfacing using SPI
•
•
•
•
•
•
parallel-bus output (LVDS option
available)
Cost-optimized BOM (Bill Of
Materials) with minimal external
component count
No manually-tuned parts required
Low-power dual-conversion RF
architecture
Turnkey Reference Design
speeds time-to-market
Reference Design Evaluation
Boards with complete software
and documentation package
available
Fully controlled by two-wire serial
bus
M2060-STV0297-RD DVB-C REFERENCE DESIGN
PRODUCT BRIEF
TYPICAL SYSTEM PERFORMANCE
P
ARAMETER
Bit Error Rate (BER)
without added noise
BER with added
noise
T
EST
C
ONDITIONS
Input Signal :
Frequency Range:
Symbol Rate:
QAM:
Input Signal :
Frequency Range:
Symbol Rate:
QAM:
CNR:
-13 dBmV
140 - 850 MHz
6.952 Msym/s
256
-13 dBmV
140 - 850 MHz
6.952 Msym/s
256
>33
P
ERFORMANCE
(BER)
< 5 x 10
-6
<= 2.00 x 10
-4
MT1110
MT2060
STV0297D
Microtune
Components
STMicroelectronics
Components
MT2060-STV0297-RD BLOCK DIAGRAM
Microtune, Inc., 2201 Tenth Street, Plano, TX 75074, USA
Tel: +1-972-673-1600, Fax: +1-972-673-1602, E-mail: sales@microtune.com, Web site:
www.microtune.com
For a detailed list of design centers, sales offices, and sales representatives, visit our Web site at
www.microtune.com.
NOTICE - The Microtune information in this document is believed to be accurate and reliable as of the date of this document. Microtune has obtained all ST Microelectronics product descriptions, specifications and
performance information described in this document from ST Microelectronics sources. Microtune has not independently verified any of this ST Microelectronics information and makes no warranty as to its accuracy or
reliability.
Microtune assumes no responsibility for any consequences arising from the use of this information, nor from any infringement of patents or the rights of third parties which may result from its use. No license is
granted by implication or otherwise under any patent or other rights of Microtune. The information in this publication replaces and supersedes all information previously supplied, and is subject to change without notice. The
customer is responsible for assuring that proper design and operating safeguards are observed to minimize inherent and procedural hazards. Microtune assumes no responsibility for applications assistance or customer product
design.
The devices described in this document are not authorized for use in medical, life-support equipment, or any other application involving a potential risk of severe property or environmental damage, personal injury, or death
without prior express written approval of Microtune. Any such use is understood to be entirely at the user’s risk.
Microtune is a registered trademark of Microtune, Inc. MicroTuner, MicroStreamer, VideoCaster, DataCaster, and the Microtune logo are trademarks of Microtune, Inc. All other trademarks belong to their respective companies.
Microtune’s products are protected by one or more of the following U.S. patents: 5,625,325; 5,648,744; 5,717,730; 5,737,035; 5,739,730; 5,805,988; 5,847,612; 6,100,761; 6,104,242; 6,144,402; 6,163,684; 6,169,569;
6,172,378; 6,177,964; 6,211,745; 6,218,899; 6,268,778; 6,310,387; 6,323,736; 6,355,537; 6,429,502; 6,462,327; 6,535,068; 6,580,313; 6,608,522; 6,631,257; 6,714,776; 6,725,463; 6,744,308 B1; 6,771,124; 6,804,099;
D469,742 and additional patents pending or filed.
Entire contents Copyright © 1996 - 2005 Microtune, Inc.
042805
PB-00122 — Rev 1.0
APRIL 2005
DSP and ARM Processors
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