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TDA7540B датащи(PDF) 7 Page - STMicroelectronics |
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TDA7540B датащи(HTML) 7 Page - STMicroelectronics |
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7 / 75 page ![]() TDA7540B Pins description and connection diagrams 7/75 2.3 Thermal data 50 MPXIN Stereodecoder Input 51 VCCSTEREO Stereodecoder Supply 52 AFS Alternative Frequency Search Drive 53 MPX/AFAM MPX Output / AM AF Output 54 AMIF2BPF AM IF2 Bandpass Filter 55 AMIF2REF Reference Voltage AM IF2 Amplifier 56 FMREFDEMC FM Demodulator Reference 57 GNDDEM Ground FM Demodulator 58 MPXW MPX Output without ISS Filtering 59 AMIF2IN Input AM IF2 60 VREF1 Reference 5V 61 GNDVCC2 Analog Ground 62 AMMIX2OUT2 AM Tank 450kHz 63 AMMIX2OUT1 AM Tank 450kHz 64 VCC2 Analog Supply 65 FMMIX2IN FM IF1 Mixer2 Input 66 FMMIX2REF FM IF1 Mixer2 Reference 67 AMRFAGCTC AM RF AGC Time Constant 68 IF1AMP2OUT IF1 Amplifier2 Output 69 AMDETC AM Detector Capacitor 70 AMREFDEMC AM Demodulator Reference 71 IF1AMP2IN IF1 Amplifier2 Input 72 VCCIF1 IF1 Supply 73 IF1AMP1OUT IF1 Amplifier1 Output 74 IF1REF IF1 Amplifier Reference 75 IF1AMP1IN IF1 Amplifier1 Input 76 GNDIF1 IF1 Ground 77 IF1AGCIN IF1 AGC Input 78 AMAGC2TC AM AGC2 Time Constant 79 TEST2 Testing I/O Pin 80 MIX1OUT2 Mixer Tank 10.7MHz Table 1. Pin description (continued) Pin No. Pin Name Function Table 2. Thermal data Symbol Parameter Value Unit Rth(j-amb) Thermal Resistance Junction to ambient Max. 55 °C/W |
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