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RF SILICON AND SUBSYSTEMS SOLUTIONS FOR BROADBAND COMMUNICATIONS AND AUTOMOTIVE ELECTRONICS
MT1502EDC DAB/DMB TUNER
PRODUCT BRIEF The MT1502EDC is a high-end automotive tuner module with an integrated analog to digial converter for terrestrial digital audio (DAB) or video services (DMB).
MT1502EDC DAB/DMB Tuner
The MT1502EDC is a tuner module for reception in VHF Band III and L-Band, compliant to the DAB EUREKA 147 standard. It performs a down conversion and filtering of the RF signal before it is provided into an integrated 12 bit analog to digital converter (ADC). The output signal is a digital intermediate frequency (IF) suitable for further signal processing with a generic or an application-specific DSP. In order to minimize interferences and distortion caused by undesired signals in adjacent channels, the tuner section of the module features digitally aligned tracking filters and an integrated IF SAW filter. Moreover an automatic gain control (AGC) is implemented which attenuates large RF input signals in order to keep distortion at very low levels. A WAGC pin provides the possibility to freeze this AGC during the null symbol of the DAB signal to prevent the tuner from overamplifying as the transmission re-continues. For clock synchronization between the analog to digital converter (ADC) and the DAB backend (DSP) the MT1502EDC offers a clock output. Incorrect samples which may result from a distorted input signal are indicated at the OTR pin. Through another pin connector the ADC can be shut down completely to save energy. The MT1502EDC has been optimized to meet the specific requirements of automotive applications and provides reliable performance even under harsh environmental conditions like temperatures from -40C to +85C. Active antenna systems as commonly used for automotive applications can be fed with 12VDC phantom power which is routed
from a pin connector to the antenna input. The module is lead free and fully compliant with RoHS requirements of the European Union.
APPLICATIONS
* High-end automotive infotainment systems featuring digital audio (DAB) or video services (DMB) according to the EUREKA 147 standard
FEATURES TUNER SECTION
* Double down-conversion for LBand, Single down-conversion for VHF Band III reception 50 antenna input matching Integrated AGCs for RF and IF Gain controlled LNAs for both bands Selectable RF and IF AGC threshold levels Tunable preselection filter IF SAW filter
PRELIMINARY
* * * * * *
FEATURES ADC
* * * * * 12 bit sampling Parallel data output Out-of-range indicator (OTR) Power down function Clock output for DAB backend (DSP)
OVERALL FEATURES
* * * * * * * * * Compact form factor Shielded metal housing SPI bus interface for control functions Integrated EEPROM to store alignment and traceability data Extended parametric temperature range of -40 to +85C Single input for Band III and L-Band antenna 12 V phantom power feeding for an active antenna Lead free and RoHS compliant Qualified according to automotive requirements
FULL DESCRIPT IVE PRODUCT NAME
PRODUCT BRIEF
OPERATING CHARACTERISTICS
PARAMETER 3.3 V Power Supply Voltage Current VHF Band III Mode Current L-Band Mode 12 V Power Supply Voltage (Phantom Feeding) Current Temperature Characteristics Parametric Temperature range Storage temperature MIN TYP 170 205 130 -40 -40 +85 +95 MAX UNIT mA mA mA C C
INPUT/OUTPUT CHARACTERISTICS
PARAMETER Antenna Input 50 (AGC not active) WAGC logical voltage high WAGC logical voltage low Analog to digital converter Clock output voltage high Clock output voltage low Clock frequency Data lines logical voltage high Data lines logical voltage low Power down enabled Power down disabled SPI bus Bus voltage high Bus voltage low Clock frequency Chip select: Logical Voltage High Chip select: Logical Voltage Low MIN TYP MAX 4 3.3 0 3.3 0 8.192 3.3 0 3.3 0 3.3 0 0 3.3 0 2 UNIT VSWR V V V V MHz V V V V V V MHz V V
ELECTRICAL CHARACTERISTICS
PARAMETER VHF Band III characteristics: Receiving frequency range Maximal input level Sensitivity at 25C Selectivity Far off Selectivity L-Band characteristics: Receiving frequency range Maximal input level Sensitivity at 25C Selectivity Far off Selectivity MIN 174 0 -98 38 48 1452 0 -96 38 48 1492 TYP MAX 240 UNIT MHz dBm dBm dB dB MHz dBm dBm dB dB
DIMENSIONS
PARAMETER Length Width Heigth Number of Pins VERTICAL VERSION 56 37 12 26 HORIZONTAL VERSION 56 36 9 26 UNIT mm mm mm
PRELIMINARY
MT1502 EDC
ADC Clock DAB Antenna Antenna Amp Tuner Band III / L-Band OTR IF ADC digital IF (parallel output) Power down ADC Power Supply
EEPROM
WAGC
12V phantom power
SPI
3.3V
MT1502EDC Block Diagram
Microtune, Inc., 2201 10th Street, Plano, TX 75074, USA Tel: +1-972-673-1600, Fax: +1-972-673-1602, E-mail: sales@microtune.com, Web site: www.microtune.com For a detailed list of office locations, sales offices, and sales representatives, visit our web site at www.microtune.com
Microtune believes that the information in this document is accurate and reliable, as of the date of this document. 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, ClearTune, 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: 5,625,325; 5,648,744; 5,717,730; 5,737,035C1; 5,739,730; 5,805,988; 5,847,612; 6,100,761; 6,104,242; 6,163,684; 6,169,569; 6,172,378; 6,177,964; 6,211,745; 6,218,899; 6,268,778; 6,310,387; 6,323,736; 6,355,537; 6,429,502; 6,462,327; 6,535,068; 6,580,313; 6,608,522; 6,631,257; 6,714,776; 6,725,463; 6,744,308; 6,771,124; 6,784,945; 6,804,099; 6,888,406; 6,891,435; 6,906,594; 6,909,886; 6,919,774; 6,920,182; 6,922,556; 6,963,478; 6,973,288; 6,993,310; 7,035,614; 7,039,062; 7,078,960; 7,079,195; 7,119,834; 7,164,899; 7,171,176; 7,184,724; 7,190,942; 7,190,943; 7,242,918; 7,274,410; 7,304,689; 7,304,533; 7,304,393; 7,313,201; D469,742 and additional patents pending or filed. Microtune's products are protected by one or more of the following International patents: United Kingdom: 1532732; Germany: 60313621.4; Netherlands: 1532732; France: 1532732; and additional patents pending or filed. Entire contents Copyright (c) 1996 - 2008 Microtune, Inc. 011108
MT1502 PB-00158 -- Rev 1.1
June 2008

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