RK3288 Hardware Design Guide
5.2 PCB Layout
Please fully comply with RK power layout design as it is really crucial to the stability and
performance of products.
A large area of power copper between PMIC power output and CPU power pin can enhance
the current capacity and reduce the trace impedance, as shown in Fig 5-5.
Fig 5-5
Place enough vias in the power trace layer change node, to enhance the current capacity,
and reduce the trace impedance, as shown in Fig 5-6. The method of calculating the actual
number of vias can refer to the tips.
Fig 5-6
The feedback compensation design for PU_VDD_COM and GPU_VDD_COM, can reduce
traces voltage loss and increase the power dynamic adjustment rate, as shown in Fig 5-7.
Summary of Contents for RK32 Series
Page 1: ...RK3288 Hardware Design Guide RK3288 Hardware Design Guide Revision 1 2 Jun 18 2014...
Page 2: ...RK3288 Hardware Design Guide Revision History Date Revision Description 2014 12 15 1 2...
Page 22: ...RK3288 Hardware Design Guide Fig 4 3 Fig 4 4...
Page 23: ...RK3288 Hardware Design Guide Fig 4 5...
Page 39: ...RK3288 Hardware Design Guide Fig 5 30...
Page 56: ...RK3288 Hardware Design Guide Fig 9 7 Fig 9 8...
Page 62: ...RK3288 Hardware Design Guide Fig 11 7...
Page 69: ...RK3288 Hardware Design Guide Fig 14 2 Fig 14 3...
Page 79: ...RK3288 Hardware Design Guide...
Page 102: ...RK3288 Hardware Design Guide Fig 22 7...
Page 109: ...RK3288 Hardware Design Guide Fig 23 13 Fig 23 14...
