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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) 12 Page - STMicroelectronics |
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TDA7540N датащи(HTML) 12 Page - STMicroelectronics |
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12 / 76 page  Electrical specifications TDA7540N 12/76 3.3.2 FM section ICC3 Supply current 2 3 mA ICCVCO Supply current 8 10 mA ICCMIX1 Supply current FM ON 8 10 mA ICCMIX1 Supply current AM ON 7 8.5 mA ICCMIX2 Supply current AM ON 7 8.5 mA ICCIF1 Supply current 5 6.5 mA ICCST Supply current 12 13.5 mA Reference voltages VREF1 Internal reference voltage IREF1 = 0mA 4.8 5 5.2 V VREF2 Internal reference voltage IREF2 = 0mA 2.4 2.5 2.6 V I2C-Bus interface fSCL Clock frequency 400 kHz VIL Input low voltage 1 V VIH Input high voltage 3 5 V IIN Input current -5 5 μA VO Output acknowledge voltage IO = 1.6mA 0.4 V Table 5. Globals electrical characteristics (continued) (Tamb = 25°C, VCC1 = VCC2 = VCC3 = VCCST= VCCVCO = VCCMIX1 = VCCMIX2 = VCCIF1 =8.5V, fXtal = 10.25MHz, in application circuit, unless otherwise specified). Symbol Parameter Test conditions Min. Typ. Max. Unit Table 6. FM section electrical characteristics (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 Wide band RF AGC V9-11 Lower threshold start V16 = 2.5V 83 85 87 dB μV V9-11 Upper threshold start V16 = 2.5V 94 96 98 dB μV Narrow band IF & keying AGC V77 Lower threshold start KAGC = off, V9-11 = 0mVRMS 84 86 88 dB μV V77 Upper threshold start KAGC = off, V9-11 = 0mVRMS 96 98 100 dB μV V77 Lower threshold start with KAGC KAGC = max, V9-11 = 0mVRMS, Δf IF=300KHz 96 98 100 dB μV |
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