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TDA8742H データシート(PDF) 2 Page - NXP Semiconductors |
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2 / 21 page October 1994 2 Philips Semiconductors Product specification Satellite sound circuit with noise reduction TDA8742; TDA8742H FEATURES • Demodulation of main audio signal using wide band PLL (lock range selectable) • HF input selection: two-out-of-eight secondary audio signals can be selected • Demodulation of secondary audio signals using wide band PLL • Noise reduction of the secondary audio signals • Output selection: stereo, language 1, language 2, main audio and external • Mute control • Line outputs (SCART level). APPLICATIONS • Satellite receivers • TV sets • Video recorders. GENERAL DESCRIPTION The TDA8742; TDA8742H is a multi-function sound IC for use in satellite receivers, television sets and video recorders. The pin numbers given in parenthesis throughout this document refer to the QFP44 package. QUICK REFERENCE DATA SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT Supply VP supply voltage 8 12 13.2 V Main channel VIN3(rms) input sensitivity pin 18 (14) (RMS value) S/N(A) = 40 dB − 1.0 2.0 mV ∆fOM lock range PLL demodulator either 5.5 − 7.5 MHz or 10.0 − 11.5 MHz VOM output voltage pin 23 (19) −9 −6 −4 dBV S/N(A) signal-to-noise ratio A-weighted 62 70 − dB Secondary channels VIN1,IN2(rms) input sensitivity pins 2, 4, 6, 8, 10, 12, 14 and 16 (1, 3, 5, 7, 9, 11, 40 and 42) (RMS value) S/N(A) = 40 dB − 0.8 1.5 mV ∆fOS1,2 lock range PLL demodulators 10.0 − 11.5 MHz VOR,OL output voltage pins 24 and 25 (20 and 21) −8 −6 −4 dBV S/N(A) signal-to-noise ratio A-weighted 72 80 − dB Crosstalk α S/M crosstalk from secondary to main channel − 74 − dB αM/S crosstalk from main to secondary channel − 74 − dB αS/S crosstalk between secondary channels − 74 − dB |
同様の部品番号 - TDA8742H |
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同様の説明 - TDA8742H |
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