PCF85133 View Datasheet(PDF) - NXP Semiconductors.

Part Name

Description

Manufacturer

PCF85133

Universal LCD driver for low multiplex rates

NXP Semiconductors. 

NXP Semiconductors

PCF85133

Universal LCD driver for low multiplex rates

7.4.2 1:2 Multiplex drive mode

When two backplanes are provided in the LCD, the 1:2 multiplex mode applies. The

PCF85133 allows the use of 1⁄2 bias or 1⁄3 bias in this mode as shown in Figure 7 and

Figure 8.

%3

%3

6Q

6Q

9/&'

9/&'

966

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966

9/&'

966

9/&'

966

VWDWH

VWDWH

9/&'

9/&'

9

 9/&'

 9/&'

9/&'

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9

 9/&'

 9/&'

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/&'VHJPHQWV

VWDWH

VWDWH

D:DYHIRUPVDWGULYHU

E5HVXOWDQWZDYHIRUPV

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DDD

Fig 7.

Vstate1(t) = VSn(t)  VBP0(t).

Von(RMS) = 0.791VLCD.

Vstate2(t) = VSn(t)  VBP1(t).

Voff(RMS) = 0.354VLCD.

Waveforms for the 1:2 multiplex drive mode with 1⁄2 bias

PCF85133

Product data sheet

All information provided in this document is subject to legal disclaimers.

Rev. 3 — 4 July 2014

© NXP Semiconductors N.V. 2014. All rights reserved.

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