MT7402 [MICROTUNE]
RF SILICON AND SUBSYSTEMS SOLUTIONSFOR FOR BROADBAND COMMUNICATIONS AND AUTOMOTIVE ELECTRONICS; RF硅和子系统SOLUTIONSFOR宽带通信和汽车电子
| 型号： | MT7402 |
| 厂家： | 
MICROTUNE,INC |
| 描述： | RF SILICON AND SUBSYSTEMS SOLUTIONSFOR FOR BROADBAND COMMUNICATIONS AND AUTOMOTIVE ELECTRONICS |
| 文件： | 总2页 (文件大小：254K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
RF SILICON AND SUBSYSTEMS SOLUTIONS
FOR BROADBAND COMMUNICATIONS AND AUTOMOTIVE ELECTRONICS
M
I
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R
O
T
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The MT7402 Hybrid Car TV Tuner
MT7402 HYBRID CAR TV
TUNER MODULE FOR
AUTOMOTIVE APPLICATIONS
APPLICATIONS
Module is specifically designed to meet
the demanding performance targets of
automotive customers, at an attractive
price. This tuner is compatible with both
analog TV standards as well as with the
digital DVB-T standard, enabling
customers to realize a highly integrated,
high-performance, cost-effective hybrid
car TV receiver solution. The MT7402
Tuner Module converts the RF signal into
an IF signal. It combines a low noise
figure with high gain and offers an
operational frequency of 45 MHz to
860 MHz divided into VHF low, VHF high
and UHF bands. Signal paths for the
three different bands are realized
separately, providing excellent
performance. The RF AGC can be
controlled either externally via the RF
AGC voltage input or automatically via
the internal AGC loop control, with
programmable parameters for threshold
and time constant. The address select
function enables the use of up to four
MT7402 tuners to realize high
•
Hybrid (analog and digital)
car TV receivers
•
Set-top box applications
PRODUCT BRIEF
FEATURES
ANALOG
The MT7402 is a high-end tuner for
terrestrial analog and digital TV
reception. It’s designed to meet the
stringent requirements of mobile
applications.
•
Compatible with receiving
standards B/G, D/K, L/L, M/N
and I (PC fixed at 38.9 MHz)
Balanced IF output drives an
external SAW filter directly
•
DIGITAL
•
Balanced IF output (36 MHz)
with integrated switchable
(7/8 MHz) SAW filter and
integrated IF amplifier
Excellent phase noise
•
GENERAL
•
•
•
•
Single conversion hyperband
tuner
MT7402 Tuner Module
performance functions like tuner
diversity, frequency diversity, or blending
between analog TV and DVB-T
Input frequency range:
45 MHz to 860 MHz
Common antenna input via
pin
reception.
The analog TV section provides a
balanced IF output capable of directly
driving an external surface acoustical
wave (SAW) filter. The external
demodulation can cover all analog TV
standards, provided that the picture
carrier is fixed at 38.9 MHz and the
filtering of the tone carrier is done
accordingly.
Excellent large-signal
behavior
•
•
•
Low noise figure
Very high gain
Selectable RF AGC
(externally or internally
controlled)
•
•
Externally controlled IF AGC
Address select input allows
control of up to four MT7402
modules
The digital TV section contains a
switchable (7/8 MHz) SAW filter for
excellent adjacent channel performance,
an IF amplifier for filter loss
compensation, and offers a balanced IF
output to directly drive an external DVB-T
demodulator. The IF gain can be
controlled externally via the IF AGC
voltage input.
•
•
•
•
Conforms to DBP, EN, and
VDE
Functions controlled by I2C
bus
Horizontal housing with very
small form factor
Designed and qualified
according to automotive
requirements
Band selection, tuning, and
several tuner functions are controlled via
I2C serial bus. The MT7402 Tuner
Module combines very small size with
high performance in harsh environments,
making them especially suitable for
automotive and mobile applications.
MT7402 HYBRID CAR TV TUNER MODULE
PRODUCT BRIEF
OPERATING CHARACTERISTICS
ELECTRICAL CHARACTERISTICS
PARAMETER
MIN
TYP
MAX
UNIT
PARAMETER
MIN
TYP
MAX
UNIT
5V power supply voltage
Current
Voltage
Analog receiving frequency
range (referred to picture
carrier)
160
5.25
mA
V
4.75
5
VHF low
VHF high
UHF
45.25
157.25
471.25
154.25
463.25
863.25
MHz
MHz
MHz
33V power supply voltage
Current
Voltage
2
mA
V
31.35
33
36.65
Digital receiving frequency
range (referred to center
frequnecy)
VHF low
VHF high
Temperature range
Operating temperature in slowly
moving air
-20
-40
+75
+85
°C
48.5
160.5
474.0
157.0
466.0
866.0
MHz
MHz
MHz
Storage temperature
°C
UHF
Tuning resolution
Analog mode
Digital mode
Voltage gain
Analog mode (VHF / UHF)
Digital mode (VHF / UHF)
Noise figure
VHF low / VHF high
UHF
VSWR
INPUT/OUTPUT CHARACTERISTICS
62.5
166.67
kHz
kHz
PARAMETER
MIN
TYP
MAX
UNIT
Antenna input (common VHF/UHF)
Input impedance
RF AGC voltage input
Control voltage
48 / 47
87 / 87
dB
dB
75
Ω
V
V
V
0.5
0.5
0
4
4
5.5 / 4.5
6
2
dB
dB
IF AGC voltage input
Control voltage
Address select input (I2C bus)
Voltage
RF AGC dynamic range
VHF low
VHF high
5
4
55
50
45
50
dB
dB
dB
dB
dB
Quantity of selections
SCL (I2C bus)
UHF
Low voltage
1.5
400
1.5
V
V
kHz
IF AGC dynamic range
IF rejection
Image rejection
VHF low / VHF high
UHF
Phase noise (∆f = 1 kHz)
VHF low
VHF high
High voltage
2.3
2.3
60
Frequency
100
SDA (I2C bus)
70 / 70
60
dB
dB
Low voltage
High voltage
V
V
IF digital output (balanced)
Frequency
Bandwidth switchable
IF analog output (balanced)
Frequency picture carrier
87
83
80
-dBc/Hz
-dBc/Hz
-dBc/Hz
36.0
7 or 8
MHz
MHz
UHF
38.9
MHz
MECHANICAL CHARACTERISTICS
PARAMETER
MEASUREMENT
UNIT
Horizontal housing
Length
Width
53.5
39.8
9.3
mm
mm
mm
Height
Analog Demodulation
(Filtering, Audio/Video
Multistandard
IF Analog
Demodulation, Tuner
Audio/Video Signal
Diversity, Frequency
Scanning Diversity)
Switching
Antenna
Diversity and
Antenna
Signal
Multiplexer
(Analog/Digital
Blend)
MT 7402
(up to 4 tuners)
Audio/Video Signal
Amplifier
Digital Demodulation
(COFDM Demodulator,
Tuner Diversity, MPEG
Audio/Video Signal
IF Digital
Decoder)
Microprocessor
MT7402 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: DE10011662; GB1026825; ES1026825; DE19628727; DE19904588.7; DE348698; FR348698; GB348698; IT348698; DE3821716;
US5,933,946; DE50000802.7; DE552624 and additional patents pending or filed.
Entire contents Copyright © 1996 - 2005 Microtune, Inc.
041105
MT7402 PB-00054 — Rev 1.1
April 2005
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