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參數(shù)資料
| 型號(hào)： | ADJD-J823 |
| 廠商： | Avago Technologies Ltd. |
| 英文描述： | Color Management Controller with Integrated RGB Photosensor |
| 中文描述： | 色彩管理控制器集成RGB光 |
| 文件頁(yè)數(shù)： | 10/18頁(yè) |
| 文件大小： | 275K |
| 代理商： | ADJD-J823 |
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10
Calculating Sampling Frequency and PWM Output Frequency
The sampling frequency, f
SAMP
, which is the frequency at which ADJD-J823 samples the tricolor photosensor, is related
to the system clock frequency, f
CLK
. The output PWM frequency, f
PWM
, is also related to f
CLK
.
Calculation example:
f
CLK
= 26 MHz (nominal)
SAMPFREQ = Sampling frequency register setting = concatenation of registers [0x06][0x07]
PWMFREQ = PWM frequency register setting = register [0x05]
The internal oscillator frequency varies from part-to-part but it will not vary as significantly during operation.
SAMPFREQ x 8
fCLK
f
SAMP
=
= 108Hz(nominal)
(PWMFREQ + 1) x 4096
fCLK
f
PWM
=
= 6.35kHz(nominal)
Color drift over temperature
Data obtain from 5 units. Color set point is at 9000K and V
DDD
& V
DDA
at 2.6V.
System consists of ADJD-J823 and RGB LEDs with color coordinates, Red (x,y) = (0.691, 0.309), Green (x,y) = (0.161, 0.704),
Blue (x,y) = (0.131, 0.073). The R:G:B luminance ratio is 2.6 : 3.9 : 1.0
Color drift
0
0.001
0.002
0.003
0.004
0.005
0.006
0.007
0.008
0.009
0
10
20
30
40
50
60
System temperature (C)
d
Note: The starting point is at 25
o
C and is zero color drift as all measurements are made relative to the starting point at 25
o
C.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADJD-MJ50 | 功能描述:LED照明模塊 RGB LED Light Strip Top Emitting RoHS:否 制造商:Cree, Inc. 產(chǎn)品:LED Modules LED 數(shù)量:1 照明顏色:Neutral White 射束角:96 deg 波長(zhǎng)/色溫:3500 K 光強(qiáng)度: 光通量:3000 lm 寬度: 長(zhǎng)度:88.2 mm 系列: 封裝:Bulk |
| ADJD-MJ51 | 功能描述:LED照明模塊 RGB LED Light Strip Top Emitting w/cable RoHS:否 制造商:Cree, Inc. 產(chǎn)品:LED Modules LED 數(shù)量:1 照明顏色:Neutral White 射束角:96 deg 波長(zhǎng)/色溫:3500 K 光強(qiáng)度: 光通量:3000 lm 寬度: 長(zhǎng)度:88.2 mm 系列: 封裝:Bulk |
| ADJD-MJ60 | 功能描述:LED照明模塊 RGB LED Light Strip Side Emitting RoHS:否 制造商:Cree, Inc. 產(chǎn)品:LED Modules LED 數(shù)量:1 照明顏色:Neutral White 射束角:96 deg 波長(zhǎng)/色溫:3500 K 光強(qiáng)度: 光通量:3000 lm 寬度: 長(zhǎng)度:88.2 mm 系列: 封裝:Bulk |
| ADJD-MJ61 | 功能描述:LED照明模塊 RGB LED Light Strip RoHS:否 制造商:Cree, Inc. 產(chǎn)品:LED Modules LED 數(shù)量:1 照明顏色:Neutral White 射束角:96 deg 波長(zhǎng)/色溫:3500 K 光強(qiáng)度: 光通量:3000 lm 寬度: 長(zhǎng)度:88.2 mm 系列: 封裝:Bulk |
| ADJD-S311-CR999 | 功能描述:圖像傳感器和彩色傳感器 RGB Color Sensor RoHS:否 制造商:Avago Technologies 類型:Color Sensors 工作電源電壓:2.5 V 封裝 / 箱體: 圖象大小: 顏色讀出:Color 最大工作溫度:+ 70 C 最小工作溫度:- 25 C 封裝:Reel |
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