MT145X Datasheet, PDF (1/2 Pages) Microtune,Inc – AM/FM TUNER MODULES

MT145X SERIES AM/FM
TUNER MODULES
PRODUCT BRIEF
The MT145x series tuner modules,
supporting world standards, are designed
for high-end automotive radios with
digital IF.
MT145x Series Tuner Module
RF SILICON AND SUBSYSTEMS SOLUTIONS
FOR BROADBAND COMMUNICATIONS AND AUTOMOTIVE ELECTRONICS
The MT145x Series AM/FM
Tuner Modules are designed
specifically for high-end automotive
radio and mobile entertainment
systems. They are optimized to
meet the performance, market and
pricing demands of automotive
OEM customers.
Supporting the various AM/FM
frequency allocations in the US,
Europe and Asia (including Japan)
the tuner modules offer worldwide
functionality. The 10.7 MHz IF
output interfaces with a dedicated
DSP (e.g. STMicroelectronics
TDA7580 or TDA7581) to form a
DSP-based digital AM/FM radio.
New broadcasting standards like
HD-Radio^™ or DRM are supported
as an option. In addition, a FM-only
version of the tuner is available in
order to add highly sophisticated
features like FM phase diversity to
the system. MT145x modules also
incorporate a high-performance fast
PLL for inaudible checking of
alternative frequencies within RDS
networks.
For FM mode, a keyed AGC
function is implemented to prevent
receiver desensitization due to
erroneous AGC response while in
AM mode, a narrow band filter
improves selectivity. Superb
sensitivity is also provided for
MW/LW/SW reception. Moreover
the modules feature an automatic
alignment for the tracking filter and
the image rejection filters. All
alignment data is stored on an on-
board EEPROM which can be
accessed by a serial bus interface
like all the other tuner functions.
The MT145x series modules
were qualified under typical
automotive operating conditions
and fully comply with RoHS
requirements. Modules are
available in a shielded horizontal
(optional vertical) housing.
APPLICATIONS
• High-end automotive
entertainment system
featuring AM/FM, HD Radio^™
or DRM
FEATURES
FM
• Down conversion
• High-performance fast PLL for
inaudible RDS updating
• Programmable controlled IF-
gain stage
• Passive FM stage with prefilter
• Adjustable image rejection
mixer
• Ceramic 10.7 MHz IF filtering
• Automatic alignment
• Keyed AGC selectable
AM
• Up conversion
• IF-crystal filter for high
selectivity
• AM Dual AGC (Cascode and
PIN)
• Keyed AGC selectable
• DRM upon request
GENERAL
• All functions controlled via
serial bus.
• World standard functionality
• High integration and shielded
housing
• On-board EEPROM.
• Variable IF output gain
• Lead-free and RoHS compliant
• Single power supply