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TEA6850 Fiches technique(PDF) 10 Page - NXP Semiconductors |
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TEA6850 Fiches technique(HTML) 10 Page - NXP Semiconductors |
10 / 20 page July 1994 10 Philips Semiconductors Preliminary specification IF filter / amplifier / demodulator for FM radio receivers TEA6850 RR power supply ripple rejection f = 200 Hz to 20 kHz; 38 −− dB Vrmax = 100 mV (on VP); ripple at MPX output α AM AM suppression fmod = 400 Hz; − 50 − dB modulation = 30% 500 µV < EMF < 100 mV 40 44 − dB RDS output (pin 1) ZO output impedance −− 1k Ω RL load resistance 15 −− k Ω CL load capacitance −− 50 pF V1 RDS signal output voltage fmod = 57 kHz; ∆f = 2 kHz; 4 6 − mV RL = ∞; CL = 0 tswitch switch on time −− 500 ms 10.7 MHz input (pins 14 and 15) Ri input resistance 3.5 5 6.5 k Ω Ci input capacitance −− 5pF V14 residual oscillator signal fosc/2 = 11 mHz; RG = 300 Ω− − 30 µV Crystal f0 standard frequency − 22 − MHz ∆f 0/f0 frequency tolerance −100 −+100 ppm C0 shunt capacitance −− 7pF RS equivalent series resistance −− 120 Ω ∆T0/T0 temperature drift −40 °C < T < +85 °C −50 − + 50 ppm Oscillator (measured at pin 18) V18 22 MHz output level 13 20 40 mV OUT300Q, I output (pins 21 and 22; ROUT300 = 33 KΩ; see Fig.4) V21,22 output voltage EMF = 75 mV 7 12 14 mV |V21|−|V22| I, Q output level difference −− 1.5 mV TC temperature coefficient of − 3.3 − 10−3/K output voltage ZO output impedance − 1.26 − k Ω Turnable filter ( −40 °C<T<+85 °C; filter response see Fig.5) ∆F 0 frequency temperature shift −10 0 +10 kHz ∆B bandwidth temperature shift −50 +3 kHz Bmax maximum adjustable V13 = 0 V 70 80 − kHz bandwidth Bmin minimum adjustable − 20 − kHz bandwidth SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT |
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