King Billion Electronics Co., Ltd

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HE847701

HE80000 SERIES

March 26, 2004

Page 13 of 29

V1.03

This specification is subject to change without notice. Please contact sales person for the latest version before use.

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

1/7.5

48 duty

1/8

1/7.5, 1/8.5

64 duty

1/9

1/8.5, 1/9.5

80 duty

1/10

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

undefined

0001

1/5

0010

1/5.5

0011

1/6

0100

1/6.5

0101

1/7

0110

1/7.5

0111

1/8

1000

1/8.5

1001

1/9

1010

1/9.5

1011

1/10

1100

1/10.5

1101

1/11

1110

1/11.5

1111

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