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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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TDA7540N датащи(PDF) 16 Page - STMicroelectronics |
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TDA7540N датащи(HTML) 16 Page - STMicroelectronics |
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16 / 76 page  Electrical specifications TDA7540N 16/76 Adjacent channel ISS filter threshold VNTH Internal low threshold ACNTH 0 V VNTH Internal high threshold ACNTH 0.24 0.3 0.36 V VWTH Internal low threshold ACWTH 0.2 0.25 0.3 V VWTH Internal high threshold ACWTH 0.76 0.95 1.14 V Multipath threshold VTHMP Internal low threshold MPTH 0.40 0.50 0.60 V VTHMP Internal high threshold MPTH 1.0 1.25 1.5 V ISS filter time constant I27,I28 Charge current low mid TISS, ISSCTL = 1 -96 -74 -54 μA I27,I28 Charge current high mid TISS, ISSCTL = 1 -60 μA I27,I28 Charge current low narrow TISS, ISSCTL = 1 -165 -124 -87 μA I27,I28 Charge current high narrow TISS, ISSCTL = 1 -110 μA I27,I28 Discharge current low TISS, ISSCTL = 0 -0.4 1 2.0 μA I27,I28 Discharge current high TISS, ISSCTL = 0 10 15 20 μA V27,V28 Low voltage ISSCTL = 0 0.1 0.2 V V27,V28 High voltage ISSCTL = 1 4.6 4.9 V ISS filter switch threshold V27,V28 Threshold ISS on ISSCTL = 0 3 V V27,V28 Threshold ISS off ISSCTL = 0 1 V V27,V28 Threshold ISS narrow on ISSCTL = 0 4 V V27,V28 Threshold ISS narrow off ISSCTL = 0 2 V I3 Charge current low TDEV -20 -32 -40 μA I3 Charge current high TDEV -30 -39 -48 μA I3 Discharge current low TDEV 0.5 1 1.5 μA I3 Discharge current high TDEV 5.5 8 10.5 μA DEVWTH Internal low threshold DWTH 30 kHz DEVWTH Internal high threshold DWTH 75 kHz RATIOmin Referred to threshold DTH 1 RATIOmax Referred to threshold DTH 1.5 Table 6. FM section electrical characteristics (continued) (Tamb = 25°C, VCC1 = VCC2 = VCC3 = VCCST= VCCVCO = VCCMIX1 = VCCMIX2 = VCCIF1 = 8.5V, fRF = 98MHz, dev= 40kHz, fMOD = 1kHz, fXtal = 10.25MHz, in application circuit, unless otherwise specified). Symbol Parameter Test conditions Min. Typ. Max. Unit |
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