參數(shù)資料
型號(hào): OM4068H
廠商: NXP Semiconductors N.V.
元件分類: LCD驅(qū)動(dòng)器
英文描述: LCD driver for low multiplex rates
封裝: OM4068H/2<SOT307-2 (QFP44)|<<http://www.nxp.com/packages/SOT307-2.html<1<Always Pb-free,;
文件頁(yè)數(shù): 11/28頁(yè)
文件大小: 125K
代理商: OM4068H
1998 Jun 18
11
Philips Semiconductors
Product specification
LCD driver for low multiplex rates
OM4068
1 : 2 M
ULTIPLEX DRIVE MODE
When two backplanes are provided in the LCD, the 1 : 2 multiplex mode applies, as shown in Fig.6.
1 : 3 M
ULTIPLEX DRIVE MODE
When three backplanes are provided in the LCD, the 1 : 3 multiplex mode applies, as shown in Fig.7.
h
MBK820
VLCD
1/2VLCD
BP1
BP2
VSS
Tframe
SEG - BP1
SEG - BP2
Tframe
Tframe
1/2VLCD
VLCD
0 V
1/2VLCD
VLCD
1/2VLCD
VLCD
0 V
1/2VLCD
VLCD
1/2VLCD
VLCD
0 V
1/2VLCD
VLCD
1/2VLCD
VLCD
0 V
1/2VLCD
VLCD
VLCD
1/2VLCD
VSS
SEG N
SEG N
+
1
SEG N
+
2
SEG N
+
3
VLCD
1/2VLCD
VSS
VLCD
1/2VLCD
VSS
VLCD
1/2VLCD
VSS
VLCD
1/2VLCD
VSS
1/2VLCD
VLCD
0 V
1/2VLCD
VLCD
1/2VLCD
VLCD
0 V
1/2VLCD
VLCD
1/2VLCD
VLCD
0 V
1/2VLCD
VLCD
1/2VLCD
VLCD
0 V
1/2VLCD
VLCD
Fig.6 Waveforms for 1 : 2 multiplex drive mode (V
OP
= V
LCD
V
SS
).
BACKPLANE
DRIVER OUTPUTS
SEGMENTS
SEG N
SEG N + 1 SEG N + 2 SEG N + 3
BP1
BP2
off
off
on
off
off
on
on
on
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