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| U2739M DAB One-Chip Channel- and Source / Data Decoder Description The U2739M is an integrated circuit in advanced CMOS technology for demodulation and decoding of a DAB signal according to ETS 300 401. The channel decoder part includes the main features OFDM demodulation and time and frequency synchronization algorithms on OAK DSP core platform. The audio source decoder supports ISO MPEG 1, 2 layer II half and full sampling rate. The data decoder part is realized on the integrated OAK DSP core and includes 2 packet mode decoders. Several standard interfaces, like I2C/L3, I2S or RDI are implemented to offer a flexible utilization. The U2739M offers a user-defined implementation of the time and frequency synchronization by downloading the corresponding software algorithms to the OAK DSP core. Electrostatic sensitive device. Observe precautions for handling. Features D Support of mode I, II, III and IV according to ETS 300 401 D Time and frequency synchronization with a widerange parameter set D Digital AFC (frequency tolerance < 0.5 Hz for mode I) D Digital AGC with a gain control range of 40 dB D On-chip de-interleaver memory for full 1.8 Mbit/s decoding data rate D Optional implementation of user-defined synchronization strategy by using OAK USE-bootmode D Time and frequency synchronization on DSP OAK core D Flexible software configuration (set 1 - (temic kernel), set 2 - (user extension) concept) D D D D Automatic mode detection (AMD) Generation of receiver-status information Generation of tuner-control signals Generation of pulse-width modulated VCXO control signal ceramic QFP144 package for software development D FIC interpreter D Support of AIC decoding (set 2) D Support of Tll decoding and corresponding RDI insertion (set 2) Audio Source Decoder D Plastic TQFP100 package or D Power supply 3.3 V, master clock 24.576 MHz Channel Decoder D Audio source decoder ISO MPEG 1, 2 layer II (ISO/IEC 11172/3) D Half (24 kHz according to ISO/IEC 13818-3) and full (48 kHz) sampling rate D Demodulation and decoding of up to 64 UEP/EEP sub-channels D I2S and SPDIF output interfaces D Programmable fader D Programmable DRC Data Decoder D Support of dynamic multipex reconfiguration (DMR) without mute state D Digital Null-Symbol detection (FSYNCH generation) D Channel filtering (48 dB) D Optional SAW filter equilization D Support 2 packet mode decoder on DSP core D FIC on-chip memory, acces via MC interface D V24/RS232 output Rev. A1, 20-May-99 1 (4) Preliminary Information U2739M Interfaces D SFCO simple full capacity output - Window-, serial sub-channel identifier (SbChld)-, data-, error- and clock line - 3.072-MHz burst mode interface - ADC sampling clock generation - ADC binary or 2's complement format selection - Support of several intermediate frequencies D Source decoder output interface: I2S and SPDIF D Data decoder output interface: V24/RS232 D Channel decoder output interface: RDI and SFCO D Microcontroller interface: I2C/L3 D RDI - Extended high capacity mode - IEC 958 format - RDI control channel (RCC) D 10-bit ADC interface D DSP bootstrap ROM interface D Voltage-controlled reference oscillator (VCXO) interface D Time deinterleaver SRAM interface D High-speed serial output HSSO (PAD, DD1, DD2, CIR) interface, 3-line serial burst mode interface Block Diagram RAM U2739M I2S Tuner ADC Channel decoder Source decoder SPDIF ROM Data decoder DAC V24/RS232 HSSO MC interface RDI interface 15004 SFCO MCU RDI Figure 1. TEMIC Semiconductors' DAB receiver concept Ordering Information Extended Type Number U2739M-AFT U2739M-AFC Package TQFP100 QFP144 Remarks Tray Tray 2 (4) Rev. A1, 20-May-99 Preliminary Information U2739M Package Information Package plastic TQFP 100 Dimensions in mm 16.20 15.80 14.10 13.90 0.15 0.05 76 75 0.75 0.45 0.5 1.6 1.4 100 1 16.20 15.80 14.10 13.90 25 51 26 50 0.22 technical drawings according to DIN specifications 0.17 13051 Rev. A1, 20-May-99 3 (4) Preliminary Information U2739M Ozone Depleting Substances Policy Statement It is the policy of TEMIC Semiconductor GmbH to 1. Meet all present and future national and international statutory requirements. 2. Regularly and continuously improve the performance of our products, processes, distribution and operating systems with respect to their impact on the health and safety of our employees and the public, as well as their impact on the environment. It is particular concern to control or eliminate releases of those substances into the atmosphere which are known as ozone depleting substances ( ODSs). The Montreal Protocol ( 1987) and its London Amendments ( 1990) intend to severely restrict the use of ODSs and forbid their use within the next ten years. Various national and international initiatives are pressing for an earlier ban on these substances. TEMIC Semiconductor GmbH has been able to use its policy of continuous improvements to eliminate the use of ODSs listed in the following documents. 1. Annex A, B and list of transitional substances of the Montreal Protocol and the London Amendments respectively 2 . Class I and II ozone depleting substances in the Clean Air Act Amendments of 1990 by the Environmental Protection Agency ( EPA) in the USA 3. Council Decision 88/540/EEC and 91/690/EEC Annex A, B and C ( transitional substances ) respectively. TEMIC Semiconductor GmbH can certify that our semiconductors are not manufactured with ozone depleting substances and do not contain such substances. We reserve the right to make changes to improve technical design and may do so without further notice. Parameters can vary in different applications. All operating parameters must be validated for each customer application by the customer. Should the buyer use TEMIC Semiconductors products for any unintended or unauthorized application, the buyer shall indemnify TEMIC Semiconductors against all claims, costs, damages, and expenses, arising out of, directly or indirectly, any claim of personal damage, injury or death associated with such unintended or unauthorized use. TEMIC Semiconductor GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany Telephone: 49 ( 0 ) 7131 67 2594, Fax number: 49 ( 0 ) 7131 67 2423 4 (4) Rev. A1, 20-May-99 Preliminary Information |
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