Test Results
65
JAJU324B – March 2015 – Revised July 2017
翻訳版
—
最新の英語版資料
http://www-s.ti.com/sc/techlit/TIDU832
Copyright © 2015–2017, Texas Instruments Incorporated
EMI/EMC
規格準拠、産業用温度範囲のデュアルポート・ギガビット・イーサネットの
リファレンス・デザイン
and
show the measured spectral density with the final measurement with a 10-m antenna at
the critical frequencies identified during the pre-test. As mentioned earlier, the minimum margin was 4.3
dB in vertical and 10.6 dB in horizontal polarization, each at 125 MHz.
表
表
29. Measured EMI Spectrum (Quasi-Peak) According to EN55011;
10-m Far-Field, Horizontal Polarization
FREQUENCY
(MHz)
READING [dBµV]
(QP)
CORRECTION (dB)
VALUES [dBµV/m]
(QP)
LIMIT [dBµV/m]
(QP)
MARGIN [dB] (QP)
125
18.6
10.8
29.4
40
10.6
250
21.1
15.2
36.3
47
10.7
375
16.6
18.8
35.4
47
11.6
500
12.9
21.8
34.7
47
12.3
875
4.9
27.3
32.2
47
14.8
図
図
57. Measured EMI Spectrum (Quasi-Peak) According to EN55011;
10-m Far-Field, Horizontal Polarization
