M I C R O T U N E™ 1384 SERIES AM/FM TUNER MODULES AUTOMOTIVE APPLICATIONS APPLICATIONS • High-end car radios FEATURES AM • • • • • • • Up/down conversion Excellent sensitivity Superior selectivity due to highly sophisticated filter technology Noise blanker at second IF High AGC dynamic range AM Stereo output available AGC-threshold programmable FM • • • • • • • • Double down-conversion Selective prefilter circuit Image reject mixers Keyed AGC selectable, AGCthreshold programmable Dynamic threshold extension for superior sensitivity selectable Outstanding selectivity due to fixed and variable IF filters with hardware “closed-loop” control Supports inaudible RDS updating Weather band optional GENERAL • • • • • • Available for US, European, and Japanese markets I2C bus controlled Very fast PLL On-board EEPROM supports digital alignment for AM and FM IF Counter information available via I2C bus Programmable switching output (open collector) 1384 AM/FM Tuner Module The 1384 Series AM/FM Tuner Modules are high-end custom and semi-custom products specifically designed to meet the demanding performance, market, and pricing targets of automotive customers. The 1384 Series AM/FM Tuners combine the low system integration effort of a standard “plug and play” module with outstanding features and absolute high-end performance. These tuner modules are designed for different standards in the US, Europe, and Japan, giving them “world” tuner functionality. The AM section contains an up/down conversion system with an active prestage and an audio output. Features such as sensitivity and large signal performance, together with the functionality of the implemented noise blanker, help ensure that the 1384 Series Tuner Modules produce clear AM reception even in critical situations. The FM section contains a double down-conversion system with a selective prefilter circuit and MPX signal as well as RDSMPX signal output. Using appropriate external signal processing, the stereo signal and the RDS/RBDS data can be derived from these outputs. The dynamic selectivity function evaluates the current receiving situation and the current modulation continuously and controls the optimum IF bandwidth (25 kHz to 155 kHz) automatically. The dynamic threshold extension automatically improves the S/N ratio at low RF input levels. Using these features, the 1384 Series Tuner Modules produce audible signals where standard tuners produce only noise and interference. The integrated RDS update algorithm controls the down-lined audio processor (special models only) and supports the control of alternative frequency evaluations so that they are absolutely inaudible. Band selection, tuning, and several tuner functions are controlled via I2C serial bus. Product Brief 1384 SERIES AM/FM TUNER MODULES PRODUCT BRIEF AUTOMOTIVE APPLICATIONS OPERATING CHARACTERISTICS PARAMETER 5V Power supply voltage Current AM mode Current FM mode Voltage 8.5V Power supply voltage Current AM mode Current FM mode Voltage Operating temperature Operating temperature in slowly moving air Parametric temperature range Storage temperature AM ELECTRICAL CHARACTERISTICS MIN TYP 41 30 4.75 42 32 5 8 62 62 8.5 MAX UNIT 54 40 5.25 mA mA V 9 mA mA V -40 +85 °C -30 -40 +70 +95 °C °C INPUT/OUTPUT CHARACTERISTICS PARAMETER MIN TYP MAX UNIT AF Hold (maximum sink current) AF Sample (maximum sink current) AM AF Output AM Mono load impedance AM Mono output resistance AM Stereo load impedance AM Stereo output resistance Antenna Input AM Mode FM Mode Field strength (level) output Voltage FM MPX Output Bandwidth Load capacitance Load resistance Output resistance IF Bandwidth flag output AM Mode (open collector with 56 kΩ pull-up resistance) FM Alignment mode RDS MPX Output Bandwidth Load capacitance Load resistance Output resistance Software flag output Open collector with 10 kΩ pullup resistance 1 1 1.2 1.2 1.4 1.4 mA mA 100 500 10 500 150 50 0 kΩ Ω 7 200 50 20 500 0 3 3.1 200 300 V kHz pF Ω Ω 5 V 3.4 V 500 kHz pF kΩ Ω 5 V 50 20 0.1 kΩ Ω kΩ Ω PARAMETER Receiving frequency range AM Mode USA AM Mode Europe AM Mode Japan Sensitivity for S/N = 10 dB S + N/N at high RF input 4 kHz Audio roll-off THD + N Normal condition RF Input = 104 dBµV Image rejection IF Rejection Selectivity Cross modulation In-band mixing Wideband AGC Field strength output (RF In = 60 dBµV) MIN TYP MAX 520 153 522 1720 6295 1629 UNIT 4.0 50 2.1 kHz kHz kHz µV dB dB 0.35 0.6 81 86 12.5 104 68 94 % % dB dB kHz dBµV dBµV dBµV 2.7 V FM ELECTRICAL CHARACTERISTICS PARAMETER Receiving frequency range FM Mode USA FM Mode Europe FM Mode Japan Sensitivity for S/N = 30 dB S + N/N (Deviation = 75 kHz) THD + N Deviation = 75 kHz RF Input = 4 µV, deviation = 75 kHz Image rejection IF Rejection Channel selectivity (200 kHz) Channel selectivity (400 kHz) Three-signal intermodulation AM Suppression Field strength output (RF In = 60 dBµV) MIN TYP MAX UNIT 108.1 108 90 1.4 74 MHz MHz MHz µV dB 0.1 % 87.5 87.5 76 1.1 % 58 108 73 80 64 58 dB dB dB dB dB dB 2.8 V MECHANICAL CHARACTERISTICS PARAMETER Length Width Height MEASUREMENT 56.9 41.9 17.4 UNIT mm mm mm World Headquarters • Microtune, Inc., 2201 Tenth Street, Plano, TX 75074 • Tel: 972-673-1600, Fax: 972-673-1602, E-mail: [email protected], Web site: www.microtune.com European Headquarters • Microtune GmbH and Co. KG, Marie Curie Strasse 1, 85055 Ingolstadt / Germany • Tel: +49-841-9378-011, Fax: +49-8419378-010, Sales Tel: +49-841-9378-020, Sales Fax: +49-841-9378-024 Pan-Asian Headquarters • Microtune, Inc. - Hong Kong, Silvercord Tower 1, Room 503, 30 Canton Road, Kowloon, Hong Kong • Tel: +852-2378-8128, Fax: +852-2302-0756 For a detailed list of current sales representatives, visit our Web site at www.microtune.com. The information in this document is believed to be accurate and reliable. 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, MicroTuner, MicroModule, 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; 5,737,035; 5,739,730; 5,805,988; 5,847,612; 6,100,761; 6,104,242; 6,144,402; 6,163,684; 6,169,569; 6,177,964; and additional patents pending or filed. Entire contents Copyright © 2001 Microtune, Inc. PB-00013 Rev 1.0 — April 2001 Page 2 of 2