Boosting The Lcd Drive Power Supply; Figure 13.17 Connection Of External Split-Resistance - Renesas H8/3847R Series Hardware Manual

Section 13 LCD Controller/Driver
13.3.6

Boosting the LCD Drive Power Supply

When a large panel is driven, the on-chip power supply capacity may be insufficient. In this case,
the power supply impedance must be reduced. This can be done by connecting bypass capacitors
of around 0.1 to 0.3 µF to pins V
externally.
V
CC
This LSI
V

Figure 13.17 Connection of External Split-Resistance

Rev. 6.00 Aug 04, 2006 page 458 of 680
REJ09B0145-0600
to V , as shown in figure 13.17, or by adding a split-resistance
1 3
V
0
V
1
V
2
V
3
SS
R = several kΩ to
R
several MΩ
R
R
C= 0.1 to 0.3µF