MICROTUNE MT7402 Rf silicon and subsystems solutionsfor for broadband communications and automotive electronic Datasheet

M
I
C
R
O
T
U
N E ®
MT7402 HYBRID CAR TV
TUNER MODULE FOR
AUTOMOTIVE APPLICATIONS
PRODUCT BRIEF
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.
The MT7402 Hybrid Car TV Tuner
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
performance functions like tuner
diversity, frequency diversity, or blending
between analog TV and DVB-T
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.
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.
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.
APPLICATIONS
•
•
Hybrid (analog and digital)
car TV receivers
Set-top box applications
FEATURES
ANALOG
•
•
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
Input frequency range:
45 MHz to 860 MHz
Common antenna input via
pin
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
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
M I C R O T U N E
MT7402 Tuner Module
RF SILICON AND SUBSYSTEMS SOLUTIONS
FOR BROADBAND COMMUNICATIONS AND AUTOMOTIVE ELECTRONICS
M T74 02 HYB RID C AR TV TUNER MODULE
PRODUCT BRIEF
OPERATING CHARACTERISTICS
PARAMETER
5V power supply voltage
Current
Voltage
33V power supply voltage
Current
Voltage
Temperature range
Operating temperature in slowly
moving air
Storage temperature
MIN
ELECTRICAL CHARACTERISTICS
TYP
MAX
UNIT
5
160
5.25
mA
V
33
2
36.65
mA
V
-20
+75
°C
-40
+85
°C
MAX
UNIT
4.75
31.35
INPUT/OUTPUT CHARACTERISTICS
PARAMETER
Antenna input (common VHF/UHF)
Input impedance
RF AGC voltage input
Control voltage
IF AGC voltage input
Control voltage
Address select input (I2C bus)
Voltage
Quantity of selections
SCL (I2C bus)
Low voltage
High voltage
Frequency
SDA (I2C bus)
Low voltage
High voltage
IF digital output (balanced)
Frequency
Bandwidth switchable
IF analog output (balanced)
Frequency picture carrier
MIN
TYP
Ω
75
0.5
4
V
0.5
4
V
0
5
4
V
1.5
V
V
kHz
2.3
100
400
1.5
2.3
V
V
36.0
7 or 8
MHz
MHz
38.9
MHz
PARAMETER
Analog receiving frequency
range (referred to picture
carrier)
VHF low
VHF high
UHF
Digital receiving frequency
range (referred to center
frequnecy)
VHF low
VHF high
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
RF AGC dynamic range
VHF low
VHF high
UHF
IF AGC dynamic range
IF rejection
Image rejection
VHF low / VHF high
UHF
Phase noise (∆f = 1 kHz)
VHF low
VHF high
UHF
MIN
TYP
MAX
UNIT
45.25
157.25
471.25
154.25
463.25
863.25
MHz
MHz
MHz
48.5
160.5
474.0
157.0
466.0
866.0
MHz
MHz
MHz
62.5
166.67
kHz
kHz
48 / 47
87 / 87
dB
dB
5.5 / 4.5
6
2
dB
dB
55
50
45
50
dB
dB
dB
dB
dB
70 / 70
60
dB
dB
87
83
80
-dBc/Hz
-dBc/Hz
-dBc/Hz
60
MECHANICAL CHARACTERISTICS
PARAMETER
MEASUREMENT
Horizontal housing
Length
Width
Height
53.5
39.8
9.3
UNIT
mm
mm
mm
IF Analog
Switching
Antenna
Diversity and
Antenna
Amplifier
Analog Demodulation
(Filtering, Audio/Video
Multistandard
Demodulation, Tuner
Diversity, Frequency
Scanning Diversity)
Audio/Video Signal
Signal
Multiplexer
(Analog/Digital
Blend)
MT 7402
(up to 4 tuners)
IF Digital
Digital Demodulation
(COFDM Demodulator,
Tuner Diversity, MPEG
Decoder)
Audio/Video Signal
Audio/Video Signal
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: [email protected], 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.
MT7402 PB-00054 — Rev 1.1
041105
April 2005
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