參數(shù)資料
型號(hào)： MSM6794
廠商： OKI SEMICONDUCTOR CO., LTD.
英文描述： LCD Driver(LCD驅(qū)動(dòng)器)
中文描述： LCD驅(qū)動(dòng)器（液晶驅(qū)動(dòng)器）
文件頁(yè)數(shù)： 6/34頁(yè)
文件大?。?/td> 195K
代理商： MSM6794
6/34
Semiconductor
MSM6794
3. RC oscillation circuit configuration: connect as in the following diagram.
R
f
R
f
= 18k
± 2 % (V
DD
= 2.7 to 4.5V)
R
f
= 22k
± 2 % (V
DD
= 4.5 to 5.5V)
C
f
= 56pF ± 5 %
C
f
OSC1
OSC2
OSC3
Tripler output
VS1
VS2
4.7
μ
F
4.7
μ
F
+
+
100
Notes: 1. Voltage multiplication reference voltage is = V
DD
maximum when the multiplied
voltage is 12V or less.
The voltage multiplication reference voltage is 4V maximum when the multiplied
voltage is 12V or more (tripler output).
Condition: f
osc
= 350kHz
Voltage multiplier circuit configuration: connect as in the following diagram.
2. If the multiplied voltage output and bias power supply are directly connected, the
voltage multiplier circuit operation may malfunction due to bias power supply noise.
A countermeasure for noise is necessary, such as inserting a series resistor to prevent
noise from entering multiplied voltage output (VS1, VS2).
Voltage multiplication
reference voltage
Doubler output
<Using doubler>
V
IN
VC1
VC2
VS1
VS2
4.7
μ
F
+
4.7
μ
F
+
Voltage multiplication
reference voltage
<Using tripler>
Tripler output
V
IN
VC1
VC2
VS1
VS2
4.7
μ
F
4.7
μ
F
4.7
μ
F
+
+
+
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