參數(shù)資料
型號: PCF85162T/1
廠商: NXP SEMICONDUCTORS
元件分類: 顯示驅(qū)動器
英文描述: LIQUID CRYSTAL DISPLAY DRIVER, PDSO48
封裝: 6.10 MM, PLASTIC, MO-153, SOT362-1, TSSOP-48
文件頁數(shù): 42/43頁
文件大?。?/td> 321K
代理商: PCF85162T/1
PCF85162_2
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 02 — 7 May 2010
8 of 43
NXP Semiconductors
PCF85162
Universal LCD driver for low multiplex rates
Using Equation 3, the discrimination for an LCD drive mode of 1:3 multiplex with
1
2 bias is
and the discrimination for an LCD drive mode of 1:4 multiplex with
1
2 bias is
.
The advantage of these LCD drive modes is a reduction of the LCD full scale voltage VLCD
as follows:
1:3 multiplex (12 bias):
1:4 multiplex (12 bias):
These compare with
when 1
3 bias is used.
It should be noted that VLCD is sometimes referred as the LCD operating voltage.
3
1.732
=
21
3
----------
1.528
=
V
LCD
6V
off RMS
()
×
2.449V
off RMS
()
==
V
LCD
43
×
()
3
----------------------
2.309V
off RMS
()
==
V
LCD
3V
off RMS
()
=
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