PCF8811MU/2DA/1 PHILIPS [NXP Semiconductors], PCF8811MU/2DA/1 Datasheet - Page 36

• Manufacturer Part Number: PCF8811MU/2DA/1
• Description: 80 x 128 pixels matrix LCD driver
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
13.9
The bias levels for an MRA driving method with p = 8 are given in Fig.31 when G
value p defines the number of rows which are simultaneously selected.
The row voltage F depends on the mux rate selected (number of rows N), the threshold voltage of the liquid (V
number of simultaneously selected rows (p) and the multiplexibility (m):
The column voltages are situated around the common level V
other. In Table 19 the column voltage levels are given as a function of F.
2004 May 17
handbook, full pagewidth
80
Bias levels
128 pixels matrix LCD driver
V LCD
V3_H
V2_H
V1_H
V1_L
V2_L
V3_L
V SS
V C
Fig.31 Bias levels for a MRA system with p = 8 and G
F
=
------ -
1
p
V
TH
36
N
--- -
2
C
. The column voltage levels are equidistant from each
------------------------------- -
m
m 1
m N
–
–
MGW752
max
G max = F = V LCD
0.75G max
0.50G max
0.25G max
V C
max
0.75G max
0.50G max
0.25G max
G max = F = V SS
and F have the same value. The
= F.
Product specification
PCF8811
TH
), the
(1)