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TEA6823 Arkusz danych(PDF) 9 Page - NXP Semiconductors |
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TEA6823 Arkusz danych(HTML) 9 Page - NXP Semiconductors |
9 / 48 page 1998 Mar 24 9 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio TEA6823T; TEA6825T FM demodulator V47-4(rms) MPX output voltage (RMS value) 160 200 240 mV V43-4(rms) MPX output voltage for RDS (RMS value) 160 200 240 mV V37-35(rms) start of limiting voltage (RMS value) αAF = −3dB − 25 40 µV V37-35(rms) input voltage for signal plus noise-to-noise ratio (RMS value) see Fig.7 for pin 47 (MPXOUT) and Fig.8 for pin 43 (RDS/AMSTOP) − 30 45 µV − 70 100 µV ∆V 43DC residual DC-offset voltage ∆Ldemod = typical value 10 µV<V 37-35 <80 µV − 100 1000 mV 80 µV<V 37-35 < 800 mV − 10 30 mV V43FM/V43AM AM suppression ∆f = 22.5 kHz; fmodAM = 1 kHz; mAM = 30%; V37-35 = 3 to 300 mV 50 60 − dB V47FM/V47AM AM suppression V37-35 = 1 to 300 mV 50 60 − dB ∆V 43-44AFCdis / ∆V43-44AFCactive demodulator frequency control voltage (AFC) efficiency at 100 kHz detune from exact tuning 28 32 − dB Ro output resistance (pin 47) −− 3k Ω output resistance (pin 43) −− 1.5 k Ω AF bandwidth (pin 43) 200 −− kHz signal plus noise-to-noise ratio 66 75 − dB THD total harmonic distortion detuning ≤50 kHz; ∆f = 75 kHz; f mod = 1 kHz without de-emphasis; Ldemod = typical value pin 43; V37-35 = 300 µV to 800 mV − 0.1 0.35 % pin 47; V37-35 = 1 to 800 mV − 0.1 0.35 % SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT SN + N -------------- 26 dB = SN + N -------------- 46 dB = SN + N -------------- |
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