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AN4068 データシート(PDF) 35 Page - STMicroelectronics |
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AN4068 データシート(HTML) 35 Page - STMicroelectronics |
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35 / 63 page ![]() AN4068 Reference design standard tests Doc ID 022923 Rev 2 35/63 Figure 20. Measured input impedance modulus of the line coupling - reception mode (typical) Figure 21. Measured input impedance modulus of the line coupling - transmission mode (typical) 8.2 Conducted emission (CE) measurements The EN50065-1 standard describes the test setup and the procedures for these kinds of tests [5]. The compliance tests have been performed with a 230 VAC isolated supply. Different test conditions have been set for PSK and FSK: ● PSK: The test pattern consists of the continuous transmission of 200 ms packets with 50% duty cycle, random payload and B-PSK modulation with 86 kHz frequency. The |
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