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TDA4650WP Fiches technique(PDF) 7 Page - NXP Semiconductors |
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TDA4650WP Fiches technique(HTML) 7 Page - NXP Semiconductors |
7 / 13 page March 1991 7 Philips Semiconductors Preliminary specification Multistandard colour decoder, with negative colour difference output signals TDA4650 CHARACTERISTICS All voltages are measured to GND (pin 11); VP = 12 V; chrominance input signal V15(p-p) = 100 mV (with 75 % colour bar signal); 4 µs burst-blanking pulse and vertical blanking superimposed on super sandcastle pulse; T amb =25 °C; measured in test circuit of Fig.1; unless otherwise specified. SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT VP supply voltage range 10.8 12.0 13.2 V IP supply current 50 60 80 mA Chrominance part Vi(p-p) input signal (pin 15) (peak-to-peak value) 20 100 400 mV Ri input resistance (pin 15) 7 10 13 k Ω Ci input capacitance (pin 15) − 45pF Demodulator part (PAL/NTSC) V1(p-p) colour difference −(R−Y) output signal (peak-to-peak value) at nominal phase of hue control 0.42 0.525 0.66 V V3(p-p) colour difference −(B−Y) output signal (peak-to-peak value) at nominal phase of hue control 0.53 0.665 0.84 V V1/V3 ratio of colour difference signals (R −Y)/(B−Y) for NTSC at nominal phase of hue control 0.75 0.79 0.83 V1/V1 ratio of PAL/NTSC signals (R −Y)PAL/(R−Y)NTSC at nominal phase of hue control −− 1dB m signal linearity V1(p-p) = 0.8 V − (R−Y) 0.8 −− V3(p-p) = 1.0 V − (B−Y) 0.8 −− V1,3 DC output level proportional to VP 6.3 6.8 7.3 V H/2 ripple at CD outputs without colour bars −− 10 mV V1,3(p-p) residual carrier at CD outputs (peak-to-peak value) 4.43 MHz −− 10 mV 8.87 MHz −− 30 mV Z1,3 output impedance −− 200 Ω Demodulator part (SECAM); note 1 V1(p-p) colour difference −(R−Y) output signal (peak-to-peak value) every second line blanked 0.83 1.05 1.32 V V3(p-p) colour difference −(B−Y) output signal (peak-to-peak value) every second line blanked 1.06 1.33 1.67 V V1,3 DC output level proportional to VP 6.3 6.8 7.3 V H/2 ripple at CD outputs without colour bars every second line blanked −− 10 mV V1,3(p−p) residual carrier at CD outputs (peak-to-peak value) 4.43 MHz −− 30 mV 8.87 MHz −− 30 mV |
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