OM6213 NXP Semiconductors, OM6213 Datasheet - Page 15

• Manufacturer Part Number: OM6213
• Description: Om6213 48 X 84 Pixels Matrix Lcd Driver
• Manufacturer: NXP Semiconductors

Philips Semiconductors
11.7
The bias voltage levels are set in the ratio of R - R - nR - R - R giving a
require different factors of ‘n’ (see Table 4). This is programmed by BS[2:0]. For Mux 1 : 48 the optimum bias value ‘n’ is
given by
Table 4 Programming the required bias system
Table 5 LCD bias voltage
2001 Nov 07
48
BS2
0
0
0
0
1
1
1
1
Bias value
n
84 pixels matrix LCD driver
=
48 3
–
BS1
0
0
1
1
0
0
1
1
=
SYMBOL
3.928
V1
V2
V3
V4
V5
V6
=
4
BS0
0
1
0
1
0
1
0
1
resulting in
1
8
bias.
n
7
6
5
4
2
1
0
15
BIAS SYSTEM
programmable
Module Maker
(see Table 11)
1
1
1
1
1
1
1
BIAS VOLTAGE FOR
11
10
9
8
6
5
4
-----------------
n
1
+
4
bias system. Different multiplex rates
RECOMMENDED MUX RATE
7
6
2
1
8
8
8
8
V
V
LCD
SS
V
V
V
V
LCD
LCD
LCD
LCD
1
1 : 10/1 : 9/1 : 8
8
1 : 18/1 : 16
BIAS SYSTEM
1 : 100
1 : 80
1 : 65
1 : 48
1 : 24
Product specification
OM6213