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MT1468 Fiches technique(PDF) 1 Page - Microtune,Inc

No de pièce MT1468
Description  RF SILICON AND SUBSYSTEMS SOLUTIONS FOR BROADBAND COMMUNICATIONS AND AUTOMOTIVE ELECTRONICS
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Fabricant  MICROTUNE [Microtune,Inc]
Site Internet  http://www.microtune.com
Logo MICROTUNE - Microtune,Inc

MT1468 Fiches technique(HTML) 1 Page - Microtune,Inc

  MT1468 Datasheet HTML 1Page - Microtune,Inc MT1468 Datasheet HTML 2Page - Microtune,Inc  
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RF SILICON AND SUBSYSTEMS SOLUTIONS
FOR BROADBAND COMMUNICATIONS AND AUTOMOTIVE ELECTRONICS
MT1468 AM/FM DOUBLE
TUNER MODULE
PRODUCT BRIEF
The MT1468 tuner module is designed for
high-end automobile radios and
entertainment system.
APPLICATIONS
High-end automotive
entertainment system
requiring digital IF
HD radio
FEATURES
FM
• High and low side injection to
avoid VCO interference
• Passive FM pre-stage with
auto aligned tracking filter
• Radio tuning state engine to
support inaudible RDS
updating
• Image reject mixers
• Keyed AGC selectable
AM
• 10.7 MHz Up-conversion
• AM Dual AGC (Cascode and
PIN)
• 1st stage ceramic filtering
GENERAL
• All functions controlled by
serial bus
• Balanced IF outputs
• High integration and fully
shielded housing
• On-board EEPROM
• Variable IF output gain
• Lead-free and RoHS compliant
MT1468 Tuner Module
The MT1468 AM/FM Double Tuner
Module is specifically designed to
meet the performance, quality and
pricing demands of automotive
customers.
To maximize sensitivity and
minimize dropouts due to multipath
interference, the MT1468 module
incorporates one AM tuner and two
independent FM tuner sections to
support a high-performance phase
diversity function. The 10.7 MHz IF
output can interface readily with a
dedicated DSP (e.g. Philips SAF
7730) to form a DSP-based digital
AM/FM radio system.
While both FM tuners receive the
same frequency in “phase diversity”
mode, the FM tuners can also be
set to different frequencies to
receive a RDS channel in the
background while listening to
another station. An AF sample-and-
hold interface for the external DSP
enables inaudible checking of
alternative frequencies within the
RDS network.
The MT1468 module provides an
RF AGC with a closed loop control
and adjustable thresholds while the IF
AGC is controlled by the external
DSP. A keyed AGC function is
implemented to prevent receiver
desensitization due to erroneous AGC
response. Furthermore the module
features automatic alignment for the
tracking filters and the image rejection
filters. All tuner functions and
parameters can be controlled via a
serial bus interface.
HD-Radio™ (IBOC) and DRM
capability with a reception of up to
26 MHz is optional. Versions for
special AM (LW/MW/SW) and FM
bands (Europe, USA, Japan) are
also available. The MT1468 module
was designed to withstand typical
automotive operating conditions and
fully complies with RoHS
requirements.


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