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參數(shù)資料
| 型號： | LC7574 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | 1/2 Duty VFD Driver with Key Input Function |
| 中文描述： | 1 / 2的責任VFD驅(qū)動器與關(guān)鍵輸入功能 |
| 文件頁數(shù)： | 13/18頁 |
| 文件大?。?/td> | 308K |
| 代理商： | LC7574 |
Relationship between the Segment and Digit Outputs
Figure 5 shows the case where the display data is set up so that the segment outputs S1 to S41 output the V
SS
level
with the same timing as the G1 and G2 digit outputs, and output the V
FL
level with the same timing as the G2 digit
output. Here, the segments corresponding to G2 will be turned on. The relationship between t3 and the oscillator
frequency f
OSC
in this case is t3 = 2048/f
OSC
.
The G1 and G2 digit output waveforms in example 1 correspond to a dimmer data (DM0 to DM9) set to 3FE
H
. The
relationship between t1 and the oscillator frequency f
OSC
is t1 = 2/f
OSC
. Note that t1 and t2 in example 1 are identical
times.
The G1 and G2 digit output waveforms in example 2 correspond to a dimmer data (DM0 to DM9) set to a smaller
value. Although t1 does not change, t2 becomes longer. Here, if the dimmer data (DM0 to DM9) is set to 1FF
H
and the
oscillator frequency f
OSC
is 1.6 MHz, then t2 can be calculated as follows.
If the dimmer data (DM0 to DM9) is set to an even smaller value, t2 will become even longer as shown in example 3.
Note that t1 does not change in this case as well.
No. 6142-13/18
LC75742E, LC75742W
Example 1
S1 to S41
Example 2
Example 3
t2 = t3 – t1
×
(1FF
H
+1)
=1024
f
OSC
= 0.64 [ms]
Figure 5
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LC75741 | 1/2 Duty Driver for Frequency Displays |
| LC75741E | 1/2 Duty Driver for Frequency Displays |
| LC75742E | RES 36K OHM 1/8W 5% 0805 SMD |
| LC75742W | 1/2 Duty VFD Driver with Key Input Function |
| LC75750W | 1/3 Duty VFD Driver(1/3占空VFD顯示驅(qū)動器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LC75741 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:1/2 Duty Driver for Frequency Displays |
| LC75741E | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:1/2 Duty Driver for Frequency Displays |
| LC75741W | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:1/2 Duty Driver for Frequency Displays |
| LC75742E | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:1/2 Duty VFD Driver with Key Input Function |
| LC75742W | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:1/2 Duty VFD Driver with Key Input Function |
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