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PCF8536AT 数据表(PDF) 32 Page - NXP Semiconductors |
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PCF8536AT 数据表(HTML) 32 Page - NXP Semiconductors |
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32 / 74 page  PCF8536 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2012. All rights reserved. Product data sheet Rev. 2 — 21 February 2012 32 of 74 NXP Semiconductors PCF8536 Universal LCD low multiplex driver with 6 channel PWM generator 8.5.3 1:8 Multiplex drive mode Vstate1(t) = VSn(t) VBP0(t). Vstate2(t) = VSn + 1(t) VBP0(t). Von(RMS)(t) = 0.424VLCD. Voff(RMS)(t) = 0.293VLCD. Fig 18. Waveforms for 1:8 multiplex drive mode with bias 1⁄4 and line inversion 001aal398 BP0 BP1 BP2 BP3 BP4 BP5 BP6 BP7 Sn Sn + 1 state 1 state 2 VLCD 3VLCD / 4 state 1 state 2 LCD segments -VLCD VLCD / 2 VLCD / 4 VSS -VLCD / 4 -VLCD / 2 -3VLCD / 4 -VLCD -3VLCD / 4 -VLCD / 4 VSS VLCD / 4 3VLCD / 4 VLCD VSS VLCD / 2 VLCD VSS VLCD / 2 VLCD VSS VLCD / 4 3VLCD / 4 VLCD VSS VLCD / 4 3VLCD / 4 VLCD VSS VLCD / 4 3VLCD / 4 VLCD VSS 3LCD / 4 3VLCD / 4 VLCD VSS VLCD / 4 3VLCD / 4 VLCD VSS VLCD / 4 3VLCD / 4 VLCD VSS VLCD / 4 3VLCD / 4 VLCD VSS VLCD / 4 3VLCD / 4 VLCD Tfr (a) Waveforms at driver (b) Resultant waveforms at LCD segment |
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