Zakładka z wyszukiwarką danych komponentów |
|
ADM489ARU Arkusz danych(PDF) 10 Page - Analog Devices |
|
ADM489ARU Arkusz danych(HTML) 10 Page - Analog Devices |
10 / 12 page ADM488/ADM489 –10– REV. 0 The ADM488/ADM489 comfortably meets Classification 1 at the most stringent (Level 3) requirement. In fact, field strengths up to 30 V/m showed no performance degradation and error- free data transmission continued even during irradiation. Table IV. Level V/m Field Strength 11 23 310 EMI EMISSIONS The ADM488/ADM489 contains internal slew rate limiting in order to minimize the level of electromagnetic interference generated. Figure 22 shows an FFT plot when transmitting a 150 kHz data stream. 10 0% 100 90 10dB/DIV 500kHz/DIV 0 5MHz Figure 22. Driver Output Waveform and FFT Plot Trans- mitting @ 150 kHz As may be seen, the slew limiting attenuates the high frequency components. EMI is therefore reduced, as are reflections due to improperly terminated cables. EN55022, CISPR22 defines the permitted limits of radiated and conducted interference from Information Technology Equipment (ITE). The objective is to control the level of emissions, both con- ducted and radiated. For ease of measurement and analysis, conducted emissions are assumed to predominate below 30 MHz, while radiated emis- sions predominate above this frequency. CONDUCTED EMISSIONS This is a measure of noise that is conducted onto the mains power supply. The noise is measured using a LISN (Linc Im- pedance Stabilizing Network) and a spectrum analyzer. The test setup is illustrated in Figure 23. The spectrum analyzer is set to scan the spectrum from 0 MHz to 30 MHz. Figure 24 shows that the level of conducted emissions from the ADM488/ ADM489 are well below the allowable limits. SPECTRUM ANALYZER DUT LISN PSU Figure 23. Conducted Emissions Test Setup LOG FREQUENCY (0.15–30) – MHz 0.3 0.6 13 6 10 30 80 0 70 40 30 20 10 60 50 LIMIT Figure 24. Conducted Emissions |
Podobny numer części - ADM489ARU |
|
Podobny opis - ADM489ARU |
|
|
Link URL |
Polityka prywatności |
ALLDATASHEET.PL |
Czy Alldatasheet okazała się pomocna? [ DONATE ] |
O Alldatasheet | Reklama | Kontakt | Polityka prywatności | Linki | Lista producentów All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |