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Rockchip RK3288 - Page 93

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RK3288 Hardware Design Guide
Fig 21-4
To pass EMI test, OR resistor concatenating differential line should be considered to be
changed to common mode choke (Common mode choke is 90-120ohm), as shown in Fig21-5.
Fig 21-5
Suggest to use RJ45 base with metal shield. If RJ45 has LED light, LED0-2 need to be
reserved a 100pF capacitor to earth reduce EMI, as shown in Fig 21-6.
Fig 21-6
Ripple wave of 3.3V and 1.05V need to be less than 100mV.
RSET resistor must be 1% accuracy as shown in Fig 21-7.