Datenblatt-Suchmaschine für elektronische Bauteile |
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TDA3866 Datenblatt(PDF) 7 Page - NXP Semiconductors |
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TDA3866 Datenblatt(HTML) 7 Page - NXP Semiconductors |
7 / 16 page January 1992 7 Philips Semiconductors Preliminary specification Quasi-split sound processor for all standards TDA3866 CHARACTERISTICS VP = 5 V and Tamb = 25 °C, measurements taken in Fig.3 with fVC = 38.9 MHz, fSC1 = 33.4 MHz and fSC2 = 33.158 MHz. Vision carrier (VC) modulated with different video signals, modulation depth 100 % (proportional to 10 % residual carrier). Vision carrier amplitude (RMS value) ViVC = 10 mV; vision to sound carrier ratios are VC/SC1 = 13 dB and VC/SC2 = 20 dB. Sound carriers (SC1, SC2) modulated with f = 1 kHz and deviation ∆f = 50 kHz unless otherwise specified. SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT VP supply voltage range (pin 21) 4.5 5 8.8 V IP supply current (pin 21) 48 60 72 mA IF source control (pin 5) V5 input voltage in order to obtain standards B/G (FM) with automatic muting pin 5 connected 2.8 − VP V pin 5 open-circuit − 2.8 − V B/G (FM) without muting pin 5 connected 1.3 − 2.3 V 22 k Ω to GND (alternative measure) − 1.8 − V L (AM sound) pin 5 connected 0 − 0.8 V I5 input current V5 = VP −− 100 µA V5 = 0 −− −300 µA IF input not activated (pins 1-2 or 23-24) RI input resistance −− 100 Ω VDC DC input voltage (pins 1, 2, 23 and 24) internally set LOW −− 0.1 V α 1,2-23,24 crosstalk attenuation of IF input switch note 1 50 56 − dB IF amplifier (pins 1-2 or 23-24) RI input resistance 1.75 2.2 2.65 k Ω CI input capacitance 1.0 1.5 2.2 pF VI DC potential, voltage (pins 1, 2, 23, 24) − 1.75 − V Vi IF maximum input signal (RMS value) Vo = +1 dB 70 100 − mV input signal sensitivity B/G standard (RMS value, pins 23-24) −3 dB intercarrier signal reduction on pin 17 − 70 100 µV input signal sensitivity L standard (RMS value, pins 1-2) −3 dB intercarrier signal reduction on pin 9 − 70 100 µV ∆G v IF gain control range 60 63 − dB B IF bandwidth −3dB 50 70 − MHz V3 voltage range for gain control (pin 3) Gmin − Gmax 1.7 − 2.6 V |
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