RL78/G14
Recommended PCB Layout for Reducing Noise
4.3 Test
Results
Table 4.1 Test Results of Recommended Board and Non-recommended Board
Layout
Recommended Board Test Results
Non-recommended Board Test Results
+
−
+
−
4000
(2)
(3)
3900
(2)
(3)
3800
(2)
(3)
3700
(3)
(3)
3600
(3)
(3)
3500
(3)
(3)
3400
(3)
(3)
3300
(3)
(3)
3200
(3)
(3)
3100
(3)
(3)
3000
(3)
(3)
2900
(3)
(3)
2800
(3)
(3)
2700
(3)
(3)
2600
(3)
(3)
2500
(3)
(3)
2400
(3)
2300
(3)
2200
2100
2000
Polarity
Voltage
Note:
Voltage: Noise value (Unit: V, higher value shows higher reducing noise capability)
Polarity: Noise polarity added to target board power source
: Normal MCU operation
(1): Reset cannot be released; (2): Reset
→
Rerun
→
Reset; (3): Main loop error or runaway
R01AN1876EC0100 Rev. 1.00
Page 10 of 14
Feb. 28, 2014
