NXP Semiconductors
PCA8538
Automotive 102 x 9 Chip-On-Glass LCD segment driver
8.10.6.3 1:4 Multiplex drive mode
When four backplanes are provided in the LCD, the 1:4 multiplex drive mode applies, as
shown in Figure 28.
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Vstate1(t) = VSn(t) VBP0(t).
Vstate2(t) = VSn(t) VBP1(t).
Von(RMS)(t) = 0.577VLCD.
Voff(RMS)(t) = 0.333VLCD.
Fig 28. Waveforms for the 1:4 multiplex drive mode, 1⁄3 bias, line inversion mode (n = 1)
PCA8538
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 4 — 26 September 2014
© NXP Semiconductors N.V. 2014. All rights reserved.
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