MT7402 Datasheet, PDF (1/2 Pages) Microtune,Inc – RF SILICON AND SUBSYSTEMS SOLUTIONSFOR FOR BROADBAND COMMUNICATIONS AND AUTOMOTIVE ELECTRONICS

M I C R O T U NE®
RF SILICON AND SUBSYSTEMS SOLUTIONS
FOR BROADBAND COMMUNICATIONS AND AUTOMOTIVE ELECTRONICS
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.
MT7402 Tuner Module
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