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| TDA1083 One Chip AM/FM Radio with Audio Power Amplifier Description The integrated circuit TDA1083 includes, with exception of the FM front end, a complete AM-/FM-radio-circuit with audio power amplifier. An internal Z-diode stabilizes the supply voltage at VS 13 V, which allows with the aid of a resistor and a rectifier, the circuit to be driven by a higher external supply voltage. [ Features D Large supply voltage range VS = 3 to 12 V D High AM-Sensitivity D Limiting threshold voltage Vi = 50 mV D Audio output power P0 = 0.7 W D AFC-connection for VHF-tuner D AM-FM switching without high frequency voltages Applications D AM-/FM- and audio-amplifier Figure 1. Block diagram and pin connections Absolute Maximum Ratings Reference points Pin 3 and 11, unless otherwise specified Parameters Supply voltage range Pin 13 Supply current when using the integrated stabilization circuit, VS = 12.5 to 14.3 V Pin 13 Power dissipation Tamb = 65C Junction temperature Storage temperature range Symbol Vs IS Ptot Tj Tstg Value 3 to 12 50 600 125 -25 to +125 Unit V mA mW C C Thermal Resistance Parameters Junction ambient Symbol RthJA Maximum 100 Unit K/W Rev. A1, 03-Dec-98 1 (8) TDA1083 Electrical Characteristics Vs = 9 V, reference points Pin 3 and 11, Tamb = 25C, unless otherwise specified Parameters AF amplifier AF voltage amplification Input impedance Output power Test Conditions / Pin f = 1 kHz Symbol Gv Ri Po Min Typ 40 150 300 Max Unit dB kW mW Figures 4 and 5 VS = 5.5 V, RL = 8 W, k = 10% AM-IF amplifier, fi = 1 MHz, fIF = 455 kHz, fmod = 1 kHz, m = 0.3 DC voltages at AM mode VS = 3 V Pin 10 V10 without signal Pin 12 V12 Pin 13 V13 Pin 16 V16 IS = 42 mA Pin 10 (VS = 12.5 to14.3 V) Pin 12 Pin 13 Pin 16 VoAF/VoAF = -10 dB Pin 6 Pin 8 V10 V12 V13 V16 1.2 1.0 3.0 1.25 3.0 1.2 7.2 5.9 12.5 1.5 13.3 14.3 2.0 1.4 3.0 2.0 V V V V V V V V dB mV Regulation range DVi VoAF 1 kHz V10 V12 V13 V16 V10 V12 V13 V16 Vi VoAF 5.9 12.5 2.0 AF voltage at demodulator output FM-IF amplifier, fIF = 10.7 MHz, Df = DC voltages at FM mode VS = 3 V without signal 70 100 "22.5 kHz, f mod = Pin 10 Pin 12 Pin 13 Pin 16 1.2 1.0 3.0 1.8 3.0 1.2 7.2 13.3 50 100 14.3 3.1 1.4 3.0 2.8 V V V V V V V V Limiting threshold (-3 dB) AF voltage at demodulator output IS = 42 mA Pin 10 (VS = 12.5 to 14.3 V) Pin 12 Pin 13 Pin 16 Pin 2 Pin 8 mV mV Different dc voltages are developed at Pin 16 due to gain spread of AM-IF-amplifier. To determine the value of parallel resistance R8, at the output of the demodulator Pin 8 for VS = 9 V, AM mode without signal, dc voltage should be selected at Pin 16. Table 1. Available in following voltage groups: V16 R8 Group 1.4 to 1.7 V 1.7 to 1.9 V 1.9 to 2.1 V 47 kW 33 kW 1 2 3 1 2 (8) Rev. A1, 03-Dec-98 TDA1083 Figure 2. Figure 4. Figure 3. Figure 5. Rev. A1, 03-Dec-98 3 (8) TDA1083 Figure 6. Figure 7. 4 (8) Rev. A1, 03-Dec-98 TDA1083 Figure 8. Components in Figure 9 L1 L2 L3 L4 L5 L6 L7 L8 L9 L10 L11 L12 L13 L14 L15 L16 455 kHz 10.7 MHz Dr1, Dr3 Dr2 Dr4 C6=C14 C19 C21 R8 = = = = = = = = = = = = = = = = = = = = = = = = = 4 Wdg 0.45 CuL, threaded core 7.5x3 material: Fi 01 U8 (Vogt GmbH) 5 Wdg 0.45 CuL 5 Wdg 0.45 CuL, air core 3.5 mm 3+3 Wdg 0.45 CuL, air core 2.7 mm 12 Wdg 0.25 CuL, Pin 3-1, filter kit 154 AN(C) or 154ANS-7 A6363A0 (TOKO, Componex) 2 Wdg 0.25 CuL, Pin 4-6 7 Wdg 0.25 CuL, Pin 6-3, filter kit 154AN(C) or 154EES-7 A6392FA (TOKO, Componex) 7 Wdg 0.16 CuL, Pin 1-4, filter kit 154AN(C) or 154EES-7 A6391ABM (TOKO, Componex) 5 Wdg 0.16 CuL, Pin 2-6 96 Wdg 0.25 CuLs, ferrite aerial 8x130 mm, type 031039-2103-606, (Draloric) 6 Wdg 0.25 CuLs 78 Wdg 0.09 CuL, Pin 3-4, filter kit RBR or RWOS-6A7609AAU (TOKO, Componex) 7 Wdg 0.09 CuL, Pin 2-1 18 Wdg 0.09 CuL, Pin 3-4, filter kit RHN(C) or RHCS-1A7607AQH (TOKO, Componex) 46+100 Wdg 0.09 CuL, Pin 6-2-1 72+72 Wdg 0.09 Cul Pin 3-4/6-1, filter kit RHN(C) or RHNS-1A7608AZP (TOKO, Componex) Ceramic filter LBF 6 (Componex) or CFU 445 H (Stettner) Ceramic filter 10.7 MF-18 (Componex) or SFE 10.7 MA (Stettner) Ferrit bead on the transistor terminal 16 Wdg 0.25 CuL, 2 air core 6 Wdg 0.15 CuL, 2.1x3 mm ferrit bead 4.5 to 20 pF, variable capacitor type CY2-22124-RT02 (TOKO, Componex) 5 to 80 pF 5 to 140 pF According to gain groups 47 kW or 33 kW 1, Rev. A1, 03-Dec-98 5 (8) TDA1083 Figure 9. FM-/AM-receiver circuit 6 (8) Rev. A1, 03-Dec-98 TDA1083 Figure 10. Dimensions in mm Rev. A1, 03-Dec-98 7 (8) TDA1083 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 8 (8) Rev. A1, 03-Dec-98 |
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