PC8534A-1 View Datasheet(PDF) - NXP Semiconductors.

Part Name

Description

Manufacturer

PC8534A-1

Universal LCD driver for low multiplex rates

NXP Semiconductors. 

NXP Semiconductors

PCF8534A

Universal LCD driver for low multiplex rates

7.4 LCD drive mode waveforms

7.4.1 Static drive mode

The static LCD drive mode is used when a single backplane is provided in the LCD.

Backplane and segment drive waveforms for this mode are shown in Figure 6.

BP0

VLCD

VSS

VLCD

Sn

Tfr

LCD segments

state 1

(on)

state 2

(off)

VSS

Sn+1

VLCD

VSS

(a) Waveforms at driver.

VLCD

state 1 0 V

−VLCD

VLCD

state 2 0 V

−VLCD

(b) Resultant waveforms

at LCD segment.

Fig 6.

Vstate1(t) = VSn(t) − VBP0(t).

Von(RMS) = VLCD.

Vstate2(t) = V(Sn + 1)(t) − VBP0(t).

Voff(RMS) = 0 V.

Static drive mode waveforms

mgl745

PCF8534A_5

Product data sheet

Rev. 05 — 6 August 2009

© NXP B.V. 2009. All rights reserved.

11 of 47

Share Link: