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PCF85176T датащи(PDF) 9 Page - NXP Semiconductors |
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PCF85176T датащи(HTML) 9 Page - NXP Semiconductors |
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9 / 43 page ![]() PCF85176_1 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2010. All rights reserved. Product data sheet Rev. 01 — 14 April 2010 9 of 43 NXP Semiconductors PCF85176 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. The backplane (BPn) and segment (Sn) drive waveforms for this mode are shown in Figure 5. Vstate1(t) = VSn(t) − VBP0(t). Von(RMS) = VLCD. Vstate2(t) = V(Sn + 1)(t) − VBP0(t). Voff(RMS) = 0 V. Fig 5. Static drive mode waveforms 013aaa207 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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