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PCF8566P Fiches technique(PDF) 10 Page - NXP Semiconductors |
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PCF8566P Fiches technique(HTML) 10 Page - NXP Semiconductors |
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10 / 48 page ![]() PCF8566_7 © NXP B.V. 2009. All rights reserved. Product data sheet Rev. 07 — 25 February 2009 10 of 48 NXP Semiconductors PCF8566 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 5. Vstate1(t) = VSn(t) − VBP0(t). Von(RMS) = VLCD. Vstate2(t) = VSn+1(t) − VBP0(t). Voff(RMS) = 0 V. Fig 5. Static drive mode waveforms mgl745 VSS VLCD VSS VLCD VSS VLCD VLCD −VLCD −VLCD VLCD state 1 0 V BP0 Sn Sn+1 state 2 0 V (a) Waveforms at driver. (b) Resultant waveforms at LCD segment. LCD segments state 1 (on) state 2 (off) Tfr |
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