TDA1220B SGS-Thomson-Microelectronics, TDA1220B Datasheet
TDA1220B
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TDA1220B Summary of contents
Page 1
... Detector and audio preamplifier FM SECTION – IF amplifier and limiter – Quadrature detector – Audio preamplifier The TDA1220B is suitable up to 30MHz AM and for FM bands (including 450KHz narrow band) and features: – Very constant characteristics (3V to 16V) – High sensitivity and low noise – ...
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... TDA1220B ABSOLUTE MAXIMUM RATINGS Symbol V Supply voltage s P Total power dissipation at T tot T Operating temperature Storage and junction temperature stg j PIN CONNECTION (Top view) THERMAL DATA Symbol R Thermal resistance junction-ambient th-j-amb 2/18 Parameter < 110 C amb Parameter Value Unit 16 V 400 mW - ...
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... limiting point 22.5 KHz 22.5 KHz KHz 22.5 KHz 22.5 KHz TDA1220B Min. Typ. Max. Unit 100 dB 80 130 200 mV 0 ...
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... TDA1220B Figure 1. Test circuit Figure 2. PC board and component layout (1:1 scale) of the test circuit 4/18 ...
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... Figure 4. Distortion vs. input signal and modulation index (AM section) Figure 7. Distortion vs. input signal (FM section) Figure 10. DC output voltage (pin. 9) vs. frequency shift (FM section) TDA1220B Figure 5. Audio output vs. supply voltage (AM section) Figure 8. Audio output vs. supply voltage (FM section) Figure 11. DC output voltage ( ...
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... TDA1220B APPLICATION INFORMATION AM Section RF Amplifier and mixer stages The RF amplifier stage (pin 2) is connected directly to the secondary winding of the ferrite rod antenna or input tuned circuit. Bias is provided at pin 4 which must be adequately decoupled. The RF amplifier provides stable performance extending beyond 30 MHz. The Mixer employed is a double - balanced multiplier and the IF output at pin 3 is connected directly to the IF filter coil ...
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... Ground the decoupling capacitor of pin 14 and the 10.7 MHz input filter at the same point. AM-FM Switching AM-FM switching is achieved by applying a DC voltage at pin 13, to switch the internal reference. Typical DC voltages (refer to the test circuit) Pins 1 0.02 9 0.02 0. 1.4 8.4 9 0.7 1 0.1 0.1 8.5 8 TDA1220B 16 Unit 8 7/18 ...
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... TDA1220B APPLICATION SUGGESTION Reccomended values are referred to the test circuit of Fig. 2. Part Recommended number value C1 100 F C2 (*) 100 nF C3 (*) 100 nF C8 100 C10 (*) 56 pF C11 6.8 nF C12 100 nF C13 220 F C16 2 (*) 68 ohm R2 (*) ...
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... APPLICATION INFORMATION (continued) Figure 12. Portable AM/FM radio TDA1220B 9/18 ...
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... TDA1220B APPLICATION INFORMATION (continued) Figure 13. PC board and component layout of the fig scale 10/18 ...
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... H) (KHz) 1-2 1-2 796 105 TURNS 2-3 4-6 TOKO - FM1 - 10x10 mm 154 AN - 7A5965R TURNS 2-3 4-6 TOKO - AM3 - 10x10 mm. RLC - 4A7525N 116 24 TURNS – – TOKO - 10x10 mm. – – KACS - K586 HM TURNS 2-3 4-6 TOKO - 10x10 mm. RWO + 6A6574N 75 8 TURNS WIRE: LITZ - 15x0.05 mm. 1-2 3-4 CORE: 10x80 mm. 7 TDA1220B 11/18 ...
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... TDA1220B APPLICATION INFORMATION (continued) Typical performance of the radio receiver of fig Parameter FM WAVEBANDS AM FM SENSITIVITY DISTORTION (fm = 1KHz SIGNAL TO NOISE (fm = 1KHz) AM AMPLITUDE MODULATION FM REJECTION 2nd H. TWEET 3rd H. QUIESCENT CURRENT SUPPLY VOLTAGE RANGE 12/18 = 9V) s Test Conditions S/N = 26dB f = 22.5KHz S/N = 6dB m = 0.3 S/N = 26dB 22.5KHz ...
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... Primary winding: 10 Turns of enamelled cop- per wire 0.16 mm diameter (pins 3-1). Secondary winding: 4 Turns copper wire 0.16 mm diameter (pins 6-4) Figure 17. Low cost 27 MHz receiver with external xtal oscillator Figure 16. L1 Antenna Coil Coil support: Toko 10K Primary winding (pins 3-1) Secondary winding: 2 Turns copper wire 0.16 mm diameter (pins 6-4) TDA1220B 13/18 ...
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... TDA1220B APPLICATION INFORMATION (continued) Figure 18. 455 KHz FM narrow band IF Figure 18. P.C. board and component layout of the circuit of fig. 18 14/18 ...
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... APPLICATION INFORMATION (continued) Figure 20. Discriminator "S" curve response (circuit of fig. 18) Figure 21. Application in sound channel of multistandard parallel AM modulated sound channel (AM section only). TDA1220B 15/18 ...
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... TDA1220B ELECTRICAL CHARACTERISTICS (V AM Section (f = 39MHz 15KHz Audio out (m = 0.3) S 100 mV 0. 1mV 0. 10mV 0.3) i AGC range ( 3dB) out Max input signal handling ( 5%) – 3dB bandwidth Distortion (V = 100 0. 1mV 0. 10mV 0. 100 0.8) ...
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... DIP16 PACKAGE MECHANICAL DATA DIM. MIN. a1 0. TYP. MAX. 0.020 1.65 0.030 0.5 0.25 20 8.5 2.54 17.78 7.1 5.1 3.3 1.27 TDA1220B inch MIN. TYP. MAX. 0.065 0.020 0.010 0.787 0.335 0.100 0.700 0.280 0.201 0.130 0.050 17/18 ...
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... TDA1220B Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications mentioned in this publication are subject to change without notice ...