參數(shù)資料
型號(hào)： NJU6677CL
廠商： New Japan Radio Co., Ltd.
英文描述： 88-common x 132-segment BIT MAP LCD DRIVER
中文描述： 88共同× 132段位圖，多媒體播放器
文件頁(yè)數(shù)： 13/45頁(yè)
文件大小： 470K
代理商： NJU6677CL
NJU6677
T
1
T
2
Voltage
Booster
ON
Voltage Adj.
Buffer(V/F)
Ext.Pow Supply
C
1+
,C
1-
to
C
4
+,C
4-
VR Term.
L
L/H
ON
ON
-
H
L
OFF
ON
ON
V
OUT
Open
H
H
OFF
OFF
ON
V
5
,V
OUT
Open
Open
Duty
Divide
1/8
1/44
1/16
1/22
1/24
1/15
1/32
1/11
1/40
1/9
1/48
1/7
1/56,64
1/6
1/72
1/5
1/80,88
1/4
-The relation between duty and divide
(f) Oscillation Circuit
The Oscillation Circuit is a low power CR oscillator incorporating with Resistor and Capacitor. It generates
clocks for display timing signal source and voltage booster circuits. The oscillation circuit output frequency is
divided as shown in below for display clock CL.
(g) Power Supply Circuit
Internal Power Supply Circuit generate the High voltage and Bias voltage for the LCD. The power Supply
Circuit consists of Voltage Booster (5-Time maximum) Circuits, Regulator Circuits, and Voltage Followers.
The internal Power Supply is designed for small size LCD panel, therefore it is not suitable for the large size
LCD panel application. If the contrast is not good in the large size LCD panel application, please supply the
external.
The suitable values of the capacitors connecting to the V
1
the feedback resistors for V
5
operational amplifier depend on the LCD panel. And the power consumption with
the LCD panel is depending on the display pattern. Please evaluate with actual LCD module.
The operation of internal Power Supply Circuits is controlled by the Internal Power Supply On/Off Instruction.
When the Internal Power Supply Off Instruction is executed, all of the voltage booster circuits, regulator
circuits, voltage follower circuits are turned off. In this time, the bias voltage of V
1
LCD should be supplied from outside, terminals C1
+
, C1
-
The status of internal power supply is selected by T
1
and T
2
operates with some of internal power supply function.
to V
5
terminals and the voltage booster circuit, and
, V
2
-
and VR should be open.
, V
3
, V
4
, and V
5
for the
, C2
+
terminal. Furthermore the external power supply
, C2
-
, C3
+
, C3
-
, C4
+
, C4
When (T
1
because the voltage booster circuits doesn't operate. Therefore LCD driving voltage to the V
should be supplied from outside.
When (T
1
, T
2
)=(H, H), terminals for voltage booster circuits and VR are open, because the voltage booster
circuits and Voltage adjust circuits do not operate.
, T
2
)=(H, L), C1
+
, C1
-
, C2
+
, C2
-
,C3
+
, C3
-
, C4
+
, C4
-
terminals for voltage booster circuits are open
OUT
terminal
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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NJU6678CL 制造商:NJRC 制造商全稱(chēng):New Japan Radio 功能描述:104-common x 132-segment BIT MAP LCD DRIVER
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