M I C R O T U N E™ 1390 FM RDS TUNER MODULE AUTOMOTIVE APPLICATIONS APPLICATIONS • High-end car radios (FM audio tuner or background RDS tuner) • Navigation systems (TMC data tuner) FEATURES • Single down-conversion • Excellent sensitivity • Selective prefilter circuit • Image reject circuit • Bus controlled AGC threshold and IF gain • Superior selectivity due to use of three ceramic filters • Special background tuner technology minimizes interference with the main tuner • Integrated radio data system (RDS) demodulator with serial output (clock and data) supports European RDS and US RBDS • RDS quality detector output • Multipath detector output • Field strength detector output • Integrated ADC for field strength and multipath • Stop signal output with evaluation of IF counter, IF window, field strength, and multipath • Multiplex signal output • Integrated PLL with short response time • I2C bus controlled • Two programmable switching outputs (open drain) 1390 FM RDS Tuner Module The 1390 FM RDS Tuner Module is a high-end product designed to meet the demanding performance, market, and pricing targets of automotive customers. This tuner module is specifically designed to be used as an FM audio tuner and/or RDS data tuner. Its special background tuner technology minimizes interference with the main tuner and supports high-end double tuner systems. Its excellent sensitivity and large signal performance produces clear sound and reliable RDS data even in weak receiving situations. Additionally, the tuner module is environmentally hardened to operate under an extended temperature range and adverse climatic conditions. The FM section contains a single down-conversion system with a selective prefilter circuit and state-of-the-art three-stage ceramic IF filtering. Using appropriate external signal processing, the stereo audio signal can be derived from the MPX signal. The integrated RDS demodulator provides a serial clock and data output. Decoding this data with an external microprocessor enables use of the RDS for numerous applications, including alternative frequencies and traffic messaging channels. Monitoring the RDS quality output provides a simple method of evaluating the current block error rate. Analog outputs for field strength and multipath allow optimization of tuner performance. The sensitivity of the seek stop mode can be adjusted via I2C bus. The 1390 FM RDS Tuner Module provides two software-controlled switching outputs (open drain). Frequency setting and multiple tuner functions are controlled via I2C serial bus. This control is intended to be handled by an external microprocessor. Product Brief 1390 FM RDS TUNER MODULE PRODUCT BRIEF AUTOMOTIVE APPLICATIONS OPERATING CHARACTERISTICS PARAMETER ELECTRICAL CHARACTERISTICS MIN 8.5V Power Supply Voltage Current Voltage 5V Power Supply Voltage Current Voltage Operating Temperature Parametric temperature range Operating temperature range (in slowly moving air) Storage Temperature TYP MAX UNIT 8.2 150 8.5 8.8 mA V 4.75 8 5 5.25 mA V -30 +70 °C -40 +85 °C -40 +95 °C INPUT/OUTPUT CHARACTERISTICS PARAMETER MIN Antenna Input Impedance IIC Bus Data SDA Input voltage low Input voltage high IIC Bus Clock SCL Input voltage low Input voltage high Frequency MPX Output Impedance RDS Clock Output Voltage RDS Data Output Voltage RDS Quality Output Voltage Field strength (level) Output Voltage Multipath Output Voltage Stop Signal Output Voltage Switching Output 1 Open drain with internal 10 kΩ pull-up resistance Switching Output 2 Open drain with internal 10 kΩ pull-up resistance TYP MAX 50 UNIT Ω -0.5 2.1 0.9 5.5 V V -0.5 2.1 0.9 5.5 400 V V kHz 4 kΩ 0 5 V 0 5 V 0 5 V 0 5 V 0 5 V 0 5 V 0 5 V 0 5 V PARAMETER Receiving Frequency Range Sensitivity for S/N=30dB S + N/N at high RF input Interstation noise SINAD THD + N Normal condition RF Input = 4µV, Deviation = 75 kHz Image rejection IF Rejection Adjacent channel selectivity (100kHz) Alternate channel selectivity (200kHz) Three-signal intermodulation AM Suppression MIN TYP MAX UNIT 108.1 1.8 57 -10 50 MHz µV dB dB dB 0.2 % 87.5 Audio output voltage (Rload = 200 kΩ) Deviation = 22.5 kHz Deviation = 50 kHz Field strength output RF Input = 20 dBµV RF Input = 60 dBµV RF Input = 100 dBµV Multipath output (AM=50%, 19kHz) RDS sensitivity for 80% correct blocks 1.0 % 60 100 dB dB 6 dB 57 dB 62 57 dB dB 160 300 mV mV 2.4 4.4 4.7 3.0 V V V V 18 dBµV MECHANICAL CHARACTERISTICS PARAMETER Length Width Height MEASUREMENT 64.8 16.0 42.0 UNIT mm mm mm 1390 FM RDS Tuner Block Diagram World Headquarters • Microtune, Inc., 2201 Tenth Street, Plano, TX 75074 USA • 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: +49-841- 9378-010, Sales Tel: +49-841-9378-020, Sales Fax: +49-841-9378-024 Pan-Asian Headquarters • Microtune (Hong Kong) Ltd., Room 1008 Star House, 3 Salisbury Road, Tsimshatsui, Hong Kong • Tel: +852-2376-2323, 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; 6,218,899 and additional patents pending or filed. Entire contents Copyright © 2002 Microtune, Inc.s PB-00029 Rev 1.0 — February 2002 Page 2 of 2