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TDA7513T датащи(PDF) 24 Page - STMicroelectronics |
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TDA7513T датащи(HTML) 24 Page - STMicroelectronics |
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24 / 84 page ![]() Electrical characteristcs TDA7513T 24/84 2.5 Noise blanker VHCLmin Min. Voltage for FULL Highcut 12 17 22 %VHCH VHCLmax Max. Voltage for FULL Highcut 28 33 38 %VHCH VHCLstep Step Resolution 2.2 4.2 6.2 %VHCH Carrier and harmonic suppression at the output α19 Pilot Signal f = 19KHz 40 50 dB α38 Subcarrier f = 38KHz 75 dB α57 Subcarrier f = 57KHz 62 dB α76 Subcarrier f = 76KHz 90 dB Table 25. Stereo decoder (continued) (Vcc = 8V; deemphasis time constant = 50µs, VMPX = 305mVrms (75kHz deviation), fm= 1kHz, Gv = 4dB, Tamb = 27°C; unless otherwise specified) Symbol Parameter Test condition Min. Typ. Max. Unit Table 26. Noise blanker Symbol Parameter Test condition Min. Typ. Max. Unit VTR Trigger Threshold (1) (2) meas. with VPEAK = 0.9V NBT = 111 (3) 30 (3) mV NBT = 110 (3) 35 (3) mV NBT = 101 (3) 40 (3) mV NBT = 100 (3) 45 (3) mV NBT = 011 (3) 50 (3) mV NBT = 010 (3) 55 (3) mV NBT = 001 (3) 60 (3) mV NBT = 000 (3) 65 (3) mV VTRNOISE Noise Controlled Trigger threshold (4) meas. with VPEAK = 1.5V NCT = 00 (3) 260 (3) mV NCT = 01 (3) 220 (3) mV NCT = 10 (3) 180 (3) mV NCT = 11 (3) 140 (3) mV VRECT Rectifier Voltage VMPX = 0mV NRD (8) = 00 0.5 0.9 1.3 V VMPX = 50mV; f = 150KHz 1.5 1.7 2.1 V VMPX = 200mV; f = 150KHz 2.2 2.5 2.9 V |
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