RK3288 Hardware Design Guide
12.2 PCB Layout
Recommendations for Key PCB Layout:
ESD protective component should be placed close to Key to fulfill electrostatic
protection as shown in Fig 12-2;
Key-buffeting eliminated capacitor C1501 should be placed close to Chip;
Trace of ADKEY_IN should be separated with other signals by GND traces, which can
avoid misjudging key-value caused by crosstalk between signals.
Fig 12-2
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...
