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TDA7540B 数据表(PDF) 21 Page - STMicroelectronics |
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TDA7540B 数据表(HTML) 21 Page - STMicroelectronics |
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21 / 75 page ![]() TDA7540B Electrical specifications 21/75 Figure 3. Trigger threshold vs. VPEAK Figure 4. Deviation controlled trigger adjustment Figure 5. Field strength controlled trigger adjustment VTH Min. Trig. T hreshold Noise Controlled Trig. Threshold 0.8 V 1200 mV (00) 950 mV (01) 700 mV (10) 450 mV (11) 8 STEPS 200 mV 147 mV V Peak 1.5 V 0.8 DEVIATION [KHz] 2.0 1.5 1.0 20 32.5 45 75 VPEAK 00 01 10 Detector off 11 [V ] OP 0.8V noisy signal good signal NOISE 2.0V (00) MONO STEREO 1.6V (01) 1.4V (10) ATC _SB OFF (11) E' VPEAK ≈ 3V |
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