PCA9620H NXP [NXP Semiconductors], PCA9620H Datasheet - Page 30

• Manufacturer Part Number: PCA9620H
• Description: Universal LCD driver for low multiplex rates
• Manufacturer: NXP [NXP Semiconductors]

NXP Semiconductors
PCA9620
Product data sheet
Fig 22. Waveforms for 1:8 multiplex drive mode with
V
state1
(t) = V
state 1
state 2
Sn + 1
BP0
BP1
BP2
BP3
BP4
BP5
BP6
BP7
Sn
Sn
(t) − V
3/4 V
1/4 V
3/4 V
1/4 V
3/4 V
1/4 V
3/4 V
1/4 V
3/4 V
1/4 V
3/4 V
1/4 V
3/4 V
1/4 V
3/4 V
1/4 V
1/2 V
1/2 V
3/4 V
1/2 V
1/4 V
1/4 V
1/2 V
3/4 V
3/4 V
1/2 V
1/4 V
1/4 V
1/2 V
3/4 V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
LCD
V
V
V
V
V
V
V
V
V
V
V
V
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
BP0
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
(t). V
state2
(t) = V
All information provided in this document is subject to legal disclaimers.
Sn
frame n
(t) − V
Tfr
Rev. 1 — 9 December 2010
BP1
(t). V
1
on(RMS)
⁄
4
bias (frame inversion mode)
(t) = 0.424V
frame n+1
Universal LCD driver for low multiplex rates
Tfr
LCD
. V
off(RMS)
(t) = 0.293V
state 1
LCD segments
001aam359
LCD
state 2
.
PCA9620
© NXP B.V. 2010. All rights reserved.
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