PCF8536AT/1 View Datasheet(PDF) - NXP Semiconductors.
Part Name
Description
MFG CO.
PCF8536AT/1
NXP Semiconductors.
'PCF8536AT/1' PDF : 74 Pages View PDF
NXP Semiconductors
PCF8536
Universal LCD low multiplex driver with 6 channel PWM generator
8.5 LCD drive mode waveforms
8.5.1 1:4 Multiplex drive mode
When four backplanes are provided in the LCD, the 1:4 multiplex drive mode applies, as
shown in Figure 15. This drawing is also showing the case of line inversion (see
Section 8.1.4.2).
PCF8536
Product data sheet
BP0
BP1
BP2
BP3
Sn
Sn+1
Sn+2
Sn+3
state 1
state 2
VLCD
2VLCD/3
VLCD/3
VSS
VLCD
2VLCD/3
VLCD/3
VSS
VLCD
2VLCD/3
VLCD/3
VSS
VLCD
2VLCD/3
VLCD/3
VSS
VLCD
2VLCD/3
VLCD/3
VSS
VLCD
2VLCD/3
VLCD/3
VSS
VLCD
2VLCD/3
VLCD/3
VSS
VLCD
2VLCD/3
VLCD/3
VSS
VLCD
2VLCD/3
VLCD/3
0V
-VLCD/3
-2VLCD/3
-VLCD
VLCD
2VLCD/3
VLCD/3
0V
-VLCD/3
-2VLCD/3
-VLCD
Tfr
LCD segments
state 1
state 2
(a) Waveforms at driver.
(b) Resultant waveforms
at LCD segment.
013aaa211
Vstate1(t) = VSn(t) VBP0(t). Vstate2(t) = VSn(t) VBP1(t).
Von(RMS)(t) = 0.577VLCD. Voff(RMS)(t) = 0.333VLCD.
Fig 15. Waveforms for the 1:4 multiplex drive mode with 1⁄3 bias and line inversion
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 6 October 2011
© NXP B.V. 2011. All rights reserved.
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