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TDA8741 Datasheet(PDF) 10 Page - NXP Semiconductors |
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TDA8741 Datasheet(HTML) 10 Page - NXP Semiconductors |
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10 / 24 page  October 1994 10 Philips Semiconductors Product specification Satellite sound circuit with noise reduction TDA8741; TDA8741H AC CHARACTERISTICS All voltages referenced to ground at pins 9 and 34 (4 and 30). Measured in test circuit Fig.4; VP = 12 V; Tamb =25 °C; fMOD = 1 kHz; fOM = 6.5 MHz; ∆fM = 46 kHz; ∆fS1 = ∆fS2 = 27 kHz (reference levels); fOS1 = 10.7 MHz; fOS2 = 10.52 MHz; HF level at pin 18 (14): 40 mV (RMS); HF level at pins 8 and 16 (3 and 11): 20 mV (RMS); MCS = logic 0 [V7 (V2) = 0 V]; SCD = logic 0 [V11 (V6) = 0 V]; unless otherwise specified. SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT Main channel - HF input pin 18 (14) and limiter VIN3(rms) input sensitivity (RMS value) S/N(A) = 40 dB − 1.0 2.0 mV VIN3(rms) input signal level (RMS value) −− 200 mV RIN3 input resistance − 15 − k Ω Main channel - PLL FM demodulator and DC decoupling amplifier fCCO free-running frequency − 6.5 − MHz MCS = logic 1 − 10.7 − MHz ∆fOM lock range of PLL note 1 5.5 − 7.5 MHz MCS = logic 1; note 1 10.0 − 11.5 MHz RCDM output resistance for 50 µs de-emphasis pin 20 (16) 1.24 1.5 1.7 k Ω VCDM output voltage pin 20 (16) −18.5 −16.0 −14.5 dBV ∆VCDM spread of PLL output voltage over lock range pin 20 (16) −− ±1dB RCCM input resistance of output amplifier pin 21 (17) 95 150 200 k Ω Main channel - overall performance (output selector in position 4) VOM,OR,OL output voltage pins 23, 24 and 25 (19, 20 and 21) all PLLs locked −9 −6 −4 dBV THD total harmonic distortion all PLLs locked − 0.1 0.5 % S/N(A) signal-to-noise ratio A-weighted; all PLLs locked 62 70 − dB 15 kHz frequency response with respect to 1 kHz pin 23 (19) no de-emphasis connected −0.5 0 +0.5 dB ROM,OR,OL output resistance pins 23, 24 and 25 (19, 20 and 21) 92 125 150 Ω α S/M crosstalk attenuation from secondary channels to main note 2 − 74 − dB MUTEatt mute attenuation output selector in position 7 74 −− dB SVRR supply voltage ripple rejection VRR = 100 mV; fi =70Hz − 35 − dB Secondary channels 1 and 2 - HF inputs pins 8 and 16 (3 and 11) and limiters VIN1,IN2(rms) input sensitivity (RMS value) S/N(A) = 40 dB − 0.8 1.5 mV Vi(rms) input signal level (RMS value) −− 200 mV RIN1,IN2 input resistance 280 330 380 Ω V OM 15 kHz () V OM 1 kHz () ------------------------------- |
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Similar Description - TDA8741 |
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