PC85133-1(2009) Просмотр технического описания (PDF) - NXP Semiconductors.

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производитель

PC85133-1
(Rev.:2009)

Universal LCD driver for low multiplex rates

NXP Semiconductors. 

NXP Semiconductors

PCF85133

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 4.

Tfr

BP0

VLCD

VSS

VLCD

Sn

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

0V

−VLCD

(b) Resultant waveforms

at LCD segment.

Fig 4.

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

PCF85133_1

Product data sheet

Rev. 1 — 17 February 2009

© NXP B.V. 2009. All rights reserved.

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