PCA8534AH-Q900 NXP [NXP Semiconductors], PCA8534AH-Q900 Datasheet - Page 10
![no-image](/images/no-image-200.jpg)
PCA8534AH-Q900
Manufacturer Part Number
PCA8534AH-Q900
Description
Universal LCD driver for low multiplex rates
Manufacturer
NXP [NXP Semiconductors]
Datasheet
1.PCA8534AH-Q900.pdf
(44 pages)
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NXP Semiconductors
PCA8534A_2
Product data sheet
7.4.2 1:2 Multiplex drive mode
When two backplanes are provided in the LCD, the 1:2 multiplex mode applies. The
PCA8534A allows the use of
Figure
Fig 5.
6.
V
V
V
V
Waveforms for the 1:2 multiplex drive mode with
state1
on(RMS)
state2
off(RMS)
Sn+1
state 1
state 2
(t) = V
(t) = V
BP0
BP1
S n
All information provided in this document is subject to legal disclaimers.
= 0.791V
= 0.354V
Sn
Sn
(t) − V
(t) − V
V
V
V
V
V
V
V
V
V
V
V
V
−V
−V
V
V
−V
−V
0 V
0 V
LCD
LCD
SS
LCD
LCD
SS
LCD
SS
LCD
SS
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
Rev. 02 — 1 June 2010
LCD
LCD
BP0
BP1
/ 2
/ 2
/ 2
/ 2
.
.
/ 2
/ 2
(t).
(t).
1
⁄
2
bias or
1
(a) Waveforms at driver.
(b) Resultant waveforms
⁄
3
Universal LCD driver for low multiplex rates
bias in this mode as shown in
at LCD segment.
T
fr
1
⁄
2
bias
state 1
state 2
mgl746
LCD segments
PCA8534A
© NXP B.V. 2010. All rights reserved.
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