S1D12200 Epson Electronics America, Inc., S1D12200 Datasheet - Page 208

• Manufacturer Part Number: S1D12200
• Description: S1d12000 Series Lcd Driver Ic Technical Manual Technical Manual
• Manufacturer: Epson Electronics America, Inc.

S1D12400 Series
2 Using only the voltage regulating circuit and the voltage follower.
*1 Because the input impedance of the V
*2 Determine C
*3 Connect a capacity between V
6–20
Reference set values: C
C
C
C
C
C
C
C
C
C
C
[When using a V
2
2
2
2
2
2
2
2
2
2
stabilizing the liquid crystal drive voltages.
[Setting example] • Turn on the voltage regulating circuit and the voltage follower and give a voltage to V
(Example of V
(Example of V
1
and C
5
voltage regulating built-in resistor]
C
• Display a LCD heavy load pattern like horizontal stripes and determine a C
• Next, turn on the built-in power supply and determine a C
2
1
2
the outside.
liquid crystal drive voltages (V
same capacity value in C
values depending on the size of the LCD panel to be driven. Set proper values that permit
: 0.47 to 4.7 F It is recommended to set optimum values suitable for the panel size in
: 0.1 to 4.7 F capacitors C
V
V
CAP1+
CAP1–
CAP2+
CAP2–
V
V
V
V
V
V
V
V
V
V
V
V
CAP1+
CAP1–
CAP2+
CAP2–
V
V
V
V
V
V
V
V
V
V
SS2
SS
SS2
OUT
5
R
DD
1
2
3
4
5
S1
SS
SS2
OUT
5
R
DD
1
2
3
4
5
S1
S1D124
, V
SS2
, V
= V
S1D124
0
0
= V
DD
SS
)
SS
and V
**
**
)
D
R
****
D
waveforms.
SS
pin is high, use a short wire and a shielding wire.
****
for voltage stabilization.
2
in every case.
EPSON
1
1
and C
to V
5
) may be stabilized. However, it is necessary to set the
2
[When using no V
C
C
C
C
C
while watching the liquid crystal display and drive
2
2
2
2
2
R
2
(Example of V
(Example of V
R
R
5
3
1
voltage regulating built-in resistor]
1
value.
V
V
CAP1+
CAP1–
CAP2+
CAP2–
V
V
V
V
V
V
V
V
V
V
V
CAP1+
CAP1–
CAP2+
CAP2–
V
V
V
V
V
V
V
V
V
V
SS
SS2
OUT
R
DD
1
2
3
4
5
S1
SS
SS2
OUT
5
R
DD
1
2
3
4
5
S1
SS2
SS2
S1D124
, V
, V
S1D124
= V
0
= V
0
SS
SS
2
**
value so that the
)
)
**
D
D
****
****
OUT
Rev. 2.1
from