Руководство по эксплуатации Philips TDA2549

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INTEGRATED CIRCUITS
DATA SHEET
TDA2549
I.F. amplifier and demodulator for
multistandard TV receivers
April 1985
Product specification
File under Integrated Circuits, IC02

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Philips Semiconductors Product specification I.F. amplifier and demodulator for TDA2549 multistandard TV receivers GENERAL DESCRIPTION The TDA2549 is a complete i.f. circuit with a.f.c., a.g.c., demodulation and video preamplification facilities for multistandard television receivers. It is capable of handling positively and negatively modulated video signals in both colour and black/white receivers. Features • Gain-controlled wide-band amplifier providing complete i.f. gain • Synchronous demodula

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Philips Semiconductors Product specification I.F. amplifier and demodulator for TDA2549 multistandard TV receivers Fig.1 Block diagram. April 1985 3

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Philips Semiconductors Product specification I.F. amplifier and demodulator for TDA2549 multistandard TV receivers RATINGS Limiting values in accordance with the Absolute Maximum System (IEC 134) Supply voltage (pins 13 and 21) V 13,8 V P Storage temperature range T - 25 to +125 °C stg Operating ambient temperature range T - 25 to +70 °C amb CHARACTERISTICS (measured in fig.5) V = 12 V; T =25 °C P amb PARAMETER SYMBOL MIN. TYP. MAX. UNIT Supply voltage range V 10,8 12 13,2 V P Supply current (pins

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Philips Semiconductors Product specification I.F. amplifier and demodulator for TDA2549 multistandard TV receivers PARAMETER SYMBOL MIN. TYP. MAX. UNIT A.F.C. output voltage swing V 10 -- V 15-3 Change of frequency required for a.f.c. output voltage swing of 10 V Δf - 70 200 kHz A.F.C. switch off for a voltage lower than: V -- 1,5 V 17-3 A.F.C. inverter switch positive a.f.c. (Fig.2) V 0 - 1,5 V 16-3 negative a.f.c. (Fig.3) V 4 - 12 V 16-3 Tuner A.G.C. Leakage current I -- 15 μA 10 Saturation volt

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Philips Semiconductors Product specification I.F. amplifier and demodulator for TDA2549 multistandard TV receivers Fig.2 A.F.C. output voltage V for positive a.f.c. Fig.3 A.F.C. output voltage V for negative a.f.c. 15-3 15-3 Fig.4 Video output waveform showing white spot and noise inverter threshold levels. April 1985 6

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Philips Semiconductors Product specification I.F. amplifier and demodulator for TDA2549 multistandard TV receivers APPLICATION INFORMATION Fig.5 Application diagram. April 1985 7

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Philips Semiconductors Product specification I.F. amplifier and demodulator for TDA2549 multistandard TV receivers PACKAGE OUTLINE DIP24: plastic dual in-line package; 24 leads (600 mil) SOT101-1 D M E A 2 A L A 1 c e w M Z b 1 (e ) 1 b M 24 13 H pin 1 index E 1 12 0 5 10 mm scale DIMENSIONS (inch dimensions are derived from the original mm dimensions) (1) A A A (1) (1) Z 1 2 UNIT b b cD E e e L M M w 1 1 E H max. min. max. max. 1.7 0.53 0.32 32.0 14.1 3.9 15.80 17.15 mm 5.1 0.51 4.0 2.54 15.2

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Philips Semiconductors Product specification I.F. amplifier and demodulator for TDA2549 multistandard TV receivers SOLDERING Introduction There is no soldering method that is ideal for all IC packages. Wave soldering is often preferred when through-hole and surface mounted components are mixed on one printed-circuit board. However, wave soldering is not always suitable for surface mounted ICs, or for printed-circuits with high population densities. In these situations reflow soldering is often use