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STE2004S датащи(PDF) 11 Page - STMicroelectronics

номер детали STE2004S
подробное описание детали  102 x 65 single-chip LCD controller/driver
PDF  79 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STE2004S датащи(HTML) 11 Page - STMicroelectronics

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STE2004S
Circuit description
11/79
Figure 6.
Bias level generator
providing an 1/(n+4) ratio, with n calculated from:
For m = 65, n = 5, a 1/9 ratio is set.
For m = 49, n =4, a 1/8 ratio is set.
The STE2004S provides three bits (BS0, BS1, BS2) for programming the bias ratio as shown
below:
The following table shows the bias level for m = 65 and m = 49:
Table 2. Bias ratio programmable bits
BS2
BS1
BS0
n
00
07
00
16
01
05
01
14
10
03
10
12
11
01
11
10
R
VLCD
VSS
·VLCD
·VLCD
·VLCD
·VLCD
n + 3
n + 4
R
nR
R
R
n + 2
n + 4
2
n + 4
1
n + 4
D00IN1150
nm
3
=



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