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AN3213 数据表(PDF) 31 Page - STMicroelectronics

部件名 AN3213
功能描述  ST7570 S-FSK power line networking system-on-chip
PDF  64 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

AN3213 数据表(HTML) 31 Page - STMicroelectronics

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AN3213
ST7570 demonstration board description
Doc ID 17429 Rev 1
31/64
In Figure 21 the measured response of the whole transmission coupling, loaded with the
LISN impedance as set by the EN50065-1 document, is given. The image highlights a
further filtering effect added by the passive L-C series resonant combined with the LISN
reactive load.
Figure 21.
Measured frequency response of the Tx active + passive filter loaded with
the EN50065-1 LISN impedance (typical)
Figure 22 represents the Montecarlo simulation of the cumulated response of transmission
active and passive filters, loaded with the LISN impedance, as set by the EN50065-1
document (References 3). Due to the response slope and the effect of power components,
the in-band variation is within +/-1.5 dB.
Table 5.
Line coupling transformer specifications
Parameter
Value
Turn ratio
1:1
Shunt inductance
≥ 1 mH
Leakage inductance
1.5 µH
DC total resistance
≤ 0.5 Ω
DC saturation current
≥ 15 mA
Inter-winding capacitance
< 30 pF
Withstanding voltage
≥ 4 kV



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