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MT1468 Fiches technique(PDF) 1 Page - Microtune,Inc |
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MT1468 Fiches technique(HTML) 1 Page - Microtune,Inc |
1 / 2 page 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. |
Numéro de pièce similaire - MT1468 |
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Description similaire - MT1468 |
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