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參數(shù)資料
| 型號： | D372A |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Electroluminescent Lamp Driver IC |
| 中文描述： | 電致發(fā)光燈驅(qū)動IC |
| 文件頁數(shù)： | 8/12頁 |
| 文件大?。?/td> | 448K |
| 代理商： | D372A |
IV. Wave-Shape (Rd) Selection
The R
resistor determines the slope of the charge and discharge portions of the output waveform. The optimal value
of this resistor depends on the lamp size and drive conditions. Typical values range from 0
- 2.0k
. Recommended
starting values for various lamp sizes are shown in the table below. The optimal waveform is trapezoidal which will
result in the best combination of high brightness and low audible noise performance. Using a larger value of Rd than
recommended will result in a triangular waveform and correspond to reducing the audible noise of the EL lamp and
increase lamp life. However, the luminance of the EL lamp will decrease. Using a smaller value of Rd than recom-
mended will result in a square waveform and correspond to higher initial luminance from the EL lamp, but will not take
advantage of the noise reduction capability of the D372.
Typical waveforms corresponding to the selected R
d
values for a 2in
2
lamp and a 4in
2
lamp are shown below.
Rd = 820
Optimal waveform for 2 in
2
Rd
Lamp Size
1.2k
820
470
220
<1.0 in
2
1.0-2.0 in
2
2.0-4.0 in
2
>4.0 in
2
Lamp Size 2 in
2
Rd = 1.2k
Reduced noise with lower luminance
Rd = 470
Optimal waveform for 4 in
2
Lamp Size 4 in
2
Rd = 0
Higher luminance with more noise
8
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| D372 | Digital Uncooled DFB（distributed-feedback） Laser Module for 2.5 Gbits/s Applications(在傳輸速率為2.5G位/秒領(lǐng)域中應(yīng)用的數(shù)字常溫DFB（分布式反饋）激光模塊) |
| D374-10A | D374-Type Digital Uncooled 2.5 Gbits/s Laser Module |
| D374-02A | D374-Type Digital Uncooled 2.5 Gbits/s Laser Module |
| D374-02F | D374-Type Digital Uncooled 2.5 Gbits/s Laser Module |
| D374-02N | D374-Type Digital Uncooled 2.5 Gbits/s Laser Module |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| D37375 | 制造商:Sprague/Vishay 功能描述:SPRAGUE TWISTLOK SKID 6A |
| D373S E373S WAF | 制造商:Fairchild Semiconductor Corporation 功能描述: |
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