參數(shù)資料
型號(hào): LP3954TLX
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 顯示驅(qū)動(dòng)器
英文描述: Advanced Lighting Management Unit
中文描述: LED DISPLAY DRIVER, PBGA36
封裝: 3 X 3 MM, 0.60 MM HEIGHT, 0.50 MM PITCH, MICRO, SMD-36
文件頁(yè)數(shù): 15/56頁(yè)
文件大小: 5801K
代理商: LP3954TLX
COLOR INTENSITY CONTROL
Each color, Red, Green and Blue, has 3-bit intensity levels.
The level control is logarithmic. 2 logarithmic curves are avail-
able. The LOG bit in Pattern_gen_ctrl register (11H) defines
the curve used. The values for both logarithmic curves are
shown in following table.
R[2:0], G[2:0],
B[2:0]
LOG=0
000
001
010
011
100
101
110
111
CURRENT
[% × I
MAX(COLOR)
]
LOG=1
0
1
2
4
10
21
46
100
0
7
14
21
32
46
71
100
20132220
COMMAND EXECUTION TIME (CET) AND TRANSITION
TIME (TT)
The command execution CET time is the duration of one sin-
gle command. Command execution times CET are defined as
follows, when R
T
=82k:
CET [3:0]
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
CET duration, ms
197
393
590
786
983
1180
1376
1573
1769
1966
2163
2359
2556
2753
2949
3146
Transition time TT is duration of transition from the previous
RGB value to programmed new value. Transition times TT
are defined as follows:
TT [2:0]
Transition time, ms
000
001
010
011
100
101
110
111
0
55
110
221
442
885
1770
3539
The figure below shows an example of RGB CET and TT
times.
20132221
15
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