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STE2001

thus providing an 1/(n+4) ratio, with n calculated from:

For m = 65, n = 5 and an 1/9 ratio is set.

For m = 33, n =3 and an 1/7 ratio is set.

The STE2001 provides three bits (BS0, BS1, BS2) for programming the desired Bias Ratio as shown below:

The following table Bias Level for m = 65 and m = 33 are provided:

LCD Voltage Generation

The LCD Voltage at reference temperature (To = 35

°C) can be set using the VOP register content according to

the following formula:

(i=0,1)

with the following values:

Note that the two PRS value produces two adjacent ranges for VLCD. If the register and PRS bit are set to zero

BS2

BS1

BS0

n

0007

0016

0105

0114

1003

1012

1101

1110

Symbol

m = 65 (1/9)

m = 33 (1/7)

V1

V2

V3

V4

V5

V6

Symbol

Value

Unit

Note

Ao

2.90

V

PRS = 0

A1

6.91

V

PRS = 1

B

0.034

V

To

35

°C

nm

3

–

=