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TDA9821 Datasheet(PDF) 7 Page - NXP Semiconductors |
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TDA9821 Datasheet(HTML) 7 Page - NXP Semiconductors |
7 / 16 page 1996 Nov 20 7 Philips Semiconductors Product specification Dual channel TV FM intercarrier sound demodulator TDA9821 Output amplifiers AF1 (pin 8) and AF2 (pin 7) and overall performance VO DC output voltage 1.8 2.1 2.5 V Vo(rms) output signal (RMS value) 0.4 0.5 0.6 V clipping level 1.2 −− V IM AC peak current −− 1.5 mA IO DC source current −− 2.0 mA ∆Vo/Vo absolute drift of AF output signals Tamb = 0 to 70 °C − 0.7 − dB ∆Vo1/∆Vo2 relative drift of AF output signals Tamb = 0 to 70 °C − 0.2 − dB ∆V AF(1-2) negative/positive difference between output signals 50 µs de-emphasis − 0.3 1.0 dB Ro output resistance − 100 −Ω αcs(ar) adjustment range of channel separation Rs = 1.1 kΩ; Rpot = 2.2 kΩ 1.5 −− dB THD total harmonic distortion 50 µs de-emphasis pin 8 − 0.1 0.3 % pin 7 − 0.25 0.5 % αAM AM suppression of AF(1-2) 50 µs de-emphasis; m = 0.3; fAM = 1 kHz 46 66 − dB signal plus noise-to-noise ratio 50 µs de-emphasis; in accordance with “CCIR 468-3” 64 68 − dB AFresp LOW-level AF frequency response ∆VAF(1-2) = −3dB −− 20 Hz HIGH-level AF frequency response 200 −− kHz AMres(rms) residual sound carrier signal and harmonics (RMS value) − 50 80 mV α8/7 crosstalk attenuation between AF outputs f = 50 to 12500 Hz 60 70 − dB RR supply voltage ripple rejection VRR < 200 mV; fr =20Hzto200 kHz VP =5V 16 20 − dB VP =8V 24 28 − dB RR supply voltage ripple rejection with improved application for VP =5V fr = 20 Hz to 3 kHz; see Fig.3 and note 2 VP = 4.5 V 18 24 − dB VP = 4.75 V 21 27 − dB VP = 5.0 V 24 30 − dB VP = 5.5 V 21 27 − dB SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT SN + N -------------- |
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