TEMIC Semiconductors TDA1072A AM Receiver Circuit Technology: Bipolar Features @ Controlled RF preamplifier @ Multiplicative balanced mixer @ Separate oscillator with amplitude control @ IF amplifier with gain control @ Balanced full-wave detector @ Audio preamplifier @ Internal AGC voltage @ Amplifier for field-strength indication @ Electronic stand-by on/off switch Block Diagram / Application Circuit Os foac. Band switch diodes 2...22 pF 12...440 Rut0 2.2 a 507 pF > wr ts = 965 pH 22 p 4 rollig 13 12 "1 10 9 | { 170 220 Controlled internal 4kQ 4kQ Controlled ry Presmplitie: vonege "~] Osciltator Indicator Driver Balanced Stand-y Controlled AF Fonrol = Mixer Switch 'F Amplitier Ampilitier Amplifier 3kQ f 7kQ 7kO Fault. Weve ro Detector ] 3.5 kQ yt [? 7 15 16 7 8 10 nF 56 pF 71 [ 35-] ! O.22uF ez raf] 2.2 uF SeC7 2252Cp 460A | 3.3 nF + ptti he + + 0 Oar 86 44810 Figure 1. Block diagram and application circuit Rev. A2, 03-Dec-98 1(7)TDA1072A TEMIC Semiconductors Absolute Maximum Ratings Reference point Pin 16, unless otherwise specified Parameters Symbol Value Unit Supply voltage Pin 13 Vs 20 Vv Voltage on Pin 2 V2 0 to 20 Vv RF inputs Voltages Reference point15 Pin 14 + V; 14/15 12 Vv Pin 14 i Vs Vv Pin 14 -V; 0.6 Vv Pin 15 V; V; Vv Pin 15 -V; 0.6 Vv RF inputs Currents Pin 14, 15 +]; 200 mA Ambient temperature range Tamb 30 to + 80 C Storage temperature range Tote 55 to + 150 C Electrical Characteristics Vs =8:5 V, reference point Pin 16, firpp = 1MHz, Rg = 50 QD finog = 0.4 kHz, m = 30%, ftp = 460 kHz, Tamb = +25C, unless otherwise specified Parameters Test Conditions / Pin Symbol Min Type Max Unit Supply voltage range Pin 13 Vs 75 18 Vv Supply current Without load, Is 23 30 mA TL=0(Pin11) Pin 13 RF preamplifier and mixer DC input voltages Pin 14, 15 Vi Vs/2 Vv Input impedances Viner <300 UV, Pin 14,15 Rj 5.5 kQ Ci 25 pF Virp>10mV, Pin 14, 15 Rj 8.0 kQ Cj 22 pF Output impedance Pin 1 Ro 500 kQ Co 6.0 pF Maximum conversion To 1 1F/VirE ASm 6.5 mA/V conductance Maximum IF output voltage Pin 1 VoIF(PP) 5.0 Vv Output current Pin 1 Ip 1.2 mA Preamplifier control range Sm 30 dB Max. RF input voltage Pin 14, 15 Vier) 2.5 Vv Oscillator Frequency range Pin 12 fosc 0.6 60 MHz Oscillator circuit Pin 12 ZLOSC 0.5 200 kQ impedance range Controlled oscillator Pin 12 Vosc 130 150 mV amplitude DC output voltage IL= OV Pin 11 Vo 6 VBR(4V) V Output load current range Pin 11 I 20 mA Output resistance TL=5+05mA, Pinil Ro 25 Q Oscillator frequency output Pin 10 Output voltage Ry 10 = 4.7 kQ Vor) 320 mV Output resistance Ro 170 Q Allowable output current Tow) 3 mA 2(7) Rev. A2, 03-Dec-98TEMIC Semiconductors TDA1072A Parameters | Test Conditions / Pin Symbol | Min Type | Max | Unit IF amplifier an AF stage DC input voltages Pin 3, 4 Vi 2 Vv Input impedance Pin 3 Rj 2.4 3 3.9 kQ oF 7 pF Max. IF input voltage m=80%,d=3% Pin3 Vi 90 mV Control range VoAF =6 dB AV; 61 dB Audio output voltage Vi = 1 mV (Pin 3), without load, Pin 6 Vo 310 mV Audio output resistance Pin 6 Ro 3.5 kQ Field-strength indication Pin 9 DC indicator voltages Ry 9 = 2.7 kQ, V; = 0 Vo 0 140 mV Ry = 2.7 kQ, Vj = 500 mV Vo 2.5 2.8 3.1 Vv Output current capability -Io 2.0 mA Output resistance Ip = 0.5 mA Ro 220 Q Reverse voltage at the AM switch-off, output +Ip = 1 pA Vo 6 Vv Stand-by switch Pin 2 Switching voltage Vi 2.75 Vv Required control voltage |AM ON Vi 2 Vv AM OFF Vi (or open input) 3.5 Input current AM on, switching current -Ij 200 pA AM off, reverse current +]; 10 (V2 = V3) Operating Conditions Vs = 8.5 V, firng = 1 MHz, finog = 0.4 kHz, m = 30%, Tamp = 25C, reference point Pin 16, see figure 2, unless otherwise specified Parameters Test Conditions / Pin Symbol | Min Type Max Unit RF input voltages (S + N)/N =6dB ViRF 1.5 uv = 26 dB 15 = 46 dB 150 RF input for age operation VirgF 30 LuV Control range for AVo = 6dB AVirg 91 dB (Reference value Vj=500mV) |AVo=14dB 86 Maximum RF input voltage d= 3%, m = 80% ViRF 0.5 Vv d= 3%, m = 30% 0.7 d= 10%, m = 30% 0.9 Audio output voltage Vi=lmV VOAF 310 (+42 dB) mV V2=4uV, m=0.8 130 (+ 3.5 dB) RF input voltage Voar= 60 mV ViRF 5.5 LV Total distortion of audio output =|m=80%, V;=1mV d 0.5 % voltage Vj = 500 mV 3.0 Signal plus noise to noise ratio Vi = 1 mV (S +N) 50 dB of audio output voltage N_ IF bandwidth (3 dB) Bir 46 kHz IF selectively Af= + 9 kHz Sip 30 dB Af= + 36 kHz 60 Rev. A2, 03-Dec-98 3(7)TEMIC Semiconductors TDA1072A Test Circuit 9 "st osc T Band switch diodes 2...22 pF 50 a] a AR a... [2-2 B 12...440 LIO LI KO 33 pF Rg ire 22 pF IG) 0 +>_+ Q {] 07 tt 10 ima Vg 2 5 Q __ D> ney T 1,298 uh 0.1 uF 0.4 uF == 220 1 " 0.1 LF rolls H Ka el al 14 13 d 11 10 9 > nt es Y @ ~ 7 | 170 t 220 [] ' Controlied + internal | _| AF 4kQ 4k2 | | suppl |_| Controtled | yy ngs y Oscillator : x Preamplifier Voltage i / { i {Indicator Oriver ! 1 f j Balanced Stand-By Controlied AF control | Mixer Switch {F Amplifier Amplifier Amplifier : | A | 7k TR | Balanced }>)- Full- Wave Detector 3.5 kQ > | > od 4 5 16 [7 8 10 nF 0.22 pF SS 2.2yFaeC7 22e2C " 12 kQ {] " 7 pos 3.3 nF go oO VOAF 85 4462e Figure 2. Test circuit 4(7) Rev. A2, 03-Dec-98TEMIC TDA1072A es sprae dBV -20 -40 -60 -80 -100 0 20 40 60 80 100 dBuV . a one iRF Figure 3. Oo 20 40 60 _ 80 100 dBuV Vv. _ iRF Figure 4. Rev. A2, 03-Dec-98 5 (7)TDA1072A TEMIC a5 4813 e + a S+N d N 60 6 dB 7 40 4 2 20 oO 20 40 60 80 100 dByV Y. h iRF Figure 5. Dimensions in mm Package SO16 52 Dimensions in mm 48 10.0 9.85 3.7 rv 0.2 0.25 38 + 0.10 6.15 5.85 _| a6 technical drawings according to DI specifications 13036 6 (7) Rev. A2, 03-Dec-98TEMIC TDA1072A 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 Rev. A2, 03-Dec-98 7 (7)