pca85132 NXP Semiconductors, pca85132 Datasheet - Page 12

• Manufacturer Part Number: pca85132
• Description: Lcd Driver For Low Multiplex Rates
• Manufacturer: NXP Semiconductors

NXP Semiconductors
PCA85132_1
Product data sheet
Fig 7.
V
V
V
V
Waveforms for the 1:2 multiplex drive mode with
state1
on(RMS)
state2
off(RMS)
state 1
state 2
S n+1
BP0
BP1
S n
(t) = V
(t) = V
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= 0.745V
= 0.333V
Sn
Sn
(t) − V
(t) − V
V
2V
V
V
V
2V
V
V
V
2V
V
V
V
2V
V
V
V
2V
V
− V
− 2V
− V
V
2V
V
− V
− 2V
− V
0 V
0 V
LCD
LCD
SS
LCD
LCD
SS
LCD
LCD
SS
LCD
LCD
SS
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
Rev. 01 — 6 May 2010
LCD
LCD
/3
/3
/3
/3
/3
/3
BP0
BP1
/3
/3
/3
/3
/3
/3
/3
/3
.
.
/3
/3
(t).
(t).
(a) Waveforms at driver.
(b) Resultant waveforms
at LCD segment.
T
fr
LCD driver for low multiplex rates
1
⁄
3
bias
013aaa209
state 1
state 2
LCD segments
PCA85132
© NXP B.V. 2010. All rights reserved.
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