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| STE2007 Datasheet, PDF (47/62 Pages) STMicroelectronics – 96 x 68 Single Chip LCD Controller/Driver | |||
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STE2007
8 Commands
8.12 VLCD set
The LCD Voltage VLCD at reference temperature (TA = 25°C) can be set using the Voltage
Range V0R, Electronic Volume EV and VOP registers content according to the following
formula:
VLCD (T=TA) = ( V0P[7:0] + EV[4:0] - 16 + 32 · V0R[2:0]) · B + VLCDMIN
with the following values:
Symbol
B
VLCDMIN
TA
Value
0.04
3
25
Unit
V
V
°C
For information on VLCD thermal compensation see PAR. 8.18 .
Figure 35.
Vout
13.20V
EV[3:0]
1Fh
B
12h
11h
10h
00h
VOP[7:0]*B+V-OR
Note
Single Voltage Step
Room Temperature
3V 00h
Figure 36.
V0R[2:0] EV[4:0]
DAC
Step: 40mV
Range 3V-13.20V
Thermal
Compensation
FFh
VOUT
8.12.1 V0R - Voltage Range Set
This command sets a value of the Voltage Range.
Table 30. V0R â Voltage Range
(D/C) D7 D6 D5 D4
0
0
0
1
0
D3 D2 D1 D0
0 V0R - Voltage Range
Setting
Command Identifier + Data Field
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