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King Billion Electronics Co., Ltd
駿
億
電
子
股
份
有
限
公
司
HE847701
HE80000 SERIES
March 26, 2004
This specification is subject to change without notice. Please contact sales person for the latest version before use.
Page 13 of 29
V1.03
LVL1
LVL1
LVL1
LVL2
LVL2
LVL2
LVL3
LVL3
LVL3
LVL4
LVL4
LVL4
LVL5
LVL5
LVL5
LCAP4A
LCAP4A
LCAP4A
LCAP4B
LCAP4B
LCAP4B
LCAP3A
LCAP3A
LCAP3A
LCAP3B
LCAP3B
LCAP3B
LCAP2A
LCAP2A
LCAP2A
LCAP2B
LCAP2B
LCAP2B
LCAP1A
LCAP1A
LCAP1A
LCAP1B
LCAP1B
LCAP1B
LCDGS
LCDGS
LCDGS
LCDVX
LCDVX
LCDVX
LCAPVTB
LCAPVTB
LCAPVTB
1uF
1uF
1uF
1uF
1uF
4.7uF
4.7uF
4.7uF
1uF
1uF
1uF
1uF
1uF
1uF
1uF
4.7uF
4.7uF
4.7uF
R
R
R
1uF
1uF
1uF
1uF
1uF
4.7uF
4.7uF
4.7uF
1uF
For bias: 5, 5.5, 6
For bias: 6.5, 7, 7.5, 8
For bias: 8.5, 9, 9.5, 10
Different duties require different bias settings. There is some theoretical correspondence between the
Duty and Bias Setting. However, it is better to use it as starting point and adjust it with real LCD panel
connected to it to determine the final setting. The theoretic relationship between the duty and bias setting
as following:
Duty Cycle Normal Bias Alternative Bias
32 duty
1/7
48 duty
1/8
64 duty
1/9
80 duty
1/10
1/7.5
1/7.5, 1/8.5
1/8.5, 1/9.5
1/9.5, 1/10.5
The bias setting is made by mask option MO_LBSR[3..0].
MO_LBSR[3:0] Bias Setting
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
undefined
1/5
1/5.5
1/6
1/6.5
1/7
1/7.5
1/8
1/8.5
1/9
1/9.5
1/10
1/10.5
1/11
1/11.5
1/12