MT2050 [MICROTUNE]
RF SILICON AND SYSTEMS SOLUTIONS FOR BROADBAND COMMUNICATIONS AND AUTOMOTIVE ELECTRONICS; 射频芯片和系统解决方案的宽带通信和汽车电子
| 型号： | MT2050 |
| 厂家： | 
MICROTUNE,INC |
| 描述： | RF SILICON AND SYSTEMS SOLUTIONS FOR BROADBAND COMMUNICATIONS AND AUTOMOTIVE ELECTRONICS |
| 文件： | 总2页 (文件大小：80K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
M
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RF SILICON AND SYSTEMS SOLUTIONS
FOR BROADBAND COMMUNICATIONS AND AUTOMOTIVE ELECTRONICS
The MT2050 is an advanced
single-chip broadband tuner that
has been optimized for high
performance cable modems and
digital cable set-top boxes that
require low composite distortion and
noise under digital cable
MT2050 SINGLE-CHIP
APPLICATIONS
•
Cable modems / voice-
enabled cable modems
Digital set-top boxes (STB)
Home gateways
BROADBAND TUNER
PRODUCT BRIEF
•
•
The MT2050 is a 5.0V single-chip
broadband tuner with an integrated
IF variable gain amplifier.
FEATURES
environments. The MT2050 includes
all active circuitry required to
implement total RF functionality,
making it the world’s first complete
RF/amplifier silicon front end. It is
capable of receiving frequencies in
the 48 MHz to 860 MHz range and
converting a selected channel to a
standard intermediate frequency
(IF). Supported IF frequencies
include NTSC, PAL, and digital
standards including DOCSIS,
EuroDOCSIS, DVB-C, and ITU J83,
A, B, C.
The MT2050’s low close-in phase
noise allows it to be used for both
digital and analog video signals
including video, high speed data,
and voice. Its dual-conversion
architecture, with no requirement for
tracking filters, yields the desirable
characteristics of traditional cable
television tuners: controlled input
impedance across the entire input
band, low in-band emissions, and
outstanding image rejection.
•
48 MHz to 860 MHz input
frequency range
•
Works seamlessly with all
analog and digital
demodulators
•
Low power dual-conversion
architecture
•
•
Minimal external components
No manually tunable parts
required
•
•
Simple interface to external
filters
Integrated IF variable gain
amplifier for direct connection
to digital demodulators
Fully compatible with NTSC,
PAL, SECAM, DAVIC, DVB-C,
DOCSIS 1.0, 1.1 and 2.0,
EuroDOCSIS and other
standards.
MT2050 Single-Chip Broadband Tuner
•
MT2050 SINGLE-CHIP BROADBAND TUNER
PRODUCT BRIEF
RECOMMENDED OPERATING CONDITIONS
PARAMETER
MIN
TYP
MAX
UNIT
Input frequency range
48
860
MHz
First intermediate center
frequency
1220
MHz
MHz
VLNAin
VCClna
DAGCin
AVCClo1
LO1tk1
1
2
3
4
5
6
7
8
9
36 FGAop
35 FGAon
34 AVCClo2
33 LO2tk
32 LO2reg
31 LO2lpf
30 DNC
Second intermediate center
frequency (programmable)
30
60
Supply voltage
4.75
5
5.25
15
V
mV
°C
Supply voltage ripple
Operating junction temperature
VGA output load impedance
Serial control clock
100
300
Ω
Exposed Die Attach Paddle
on Package Bottom
LO1tk2
400
kHz
LO1reg
DVCClo1
LO1lpf
29 DVCClo2
28 GPO1
27 DNC
ABSOLUTE MAXIMUM RATINGS
GPO0 10
DNC 11
PARAMETER
Supply voltage
MIN
MAX
UNIT
26 VGAip
25 VGAin
6
V
SERca 12
Storage temperature range
-40
+150
°C
Lead temperature (soldering, 4
seconds)
+245
+260
°C
Lead-free temperature
(soldering, 5 seconds)
°C
V
Input voltage
-0.3
VCC +0.3
MT2050 Pin Diagram
ELECTRICAL CHARACTERISTICS
PARAMETER
Power Supply
MIN
TYP
MAX
UNIT
Active current
Shut-down current
Return loss
Noise figure, max gain
RF AGC range
VGA AGC range
325
35
10
mA
mA
dB
dB
dB
dB
RF INPUT
IF OUTPUT
MIX 1
FGA
7.3
MIX 2
VGA
L02
30
30
PLL
PLL
L01
LO1
SERIAL DATA
CLOCK
SERIAL CONTROL
INTERFACE
Phase noise (10 kHz)
Phase noise (100 kHz)
-86
-109
dBc/Hz
dBc/Hz
SRO
L02
Phase noise (10 kHz)
Phase noise (100 kHz)
-94
-114
dBc/Hz
dBc/Hz
MT2050 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.
The information in this document is believed to be accurate and reliable. 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; D469,742; 6,535,068; 6,580,313; 6,608,522; 6,631,257; 6,674,409;
6,714,776; 6,725,463, 6,744,308 B1; 6,771,124; 6,784,945; 6,804,099; 6,888,406; 6,891,435; 6,906,594; 6,920,182; 6,963,478; 6,973,288; D,469,742; DE10,011,662 and additional patents pending or
filed.
Entire contents Copyright © 1996 - 2006 Microtune, Inc.
121505
MT2050 PB-00038 — Rev 1.2
March 2006
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