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参数资料
| 型号： | MLX10407 |
| 厂商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 5-Channel Gauge Driver with Serial Link |
| 中文描述： | 5通道计驱动器，串行链路 |
| 文件页数： | 8/9页 |
| 文件大小： | 93K |
| 代理商： | MLX10407 |
MLX10407 5-Channel Gauge Driver with Serial Link Page 8 Rev 1.1 27/Apr/01
MLX10407
5-Channel Gauge Driver with Serial Link
PWM Generation
1) Logometers 360° ( Logo 1 and Logo 2 ):
From the angle value received from the MCU (range [0° - 89.8°]), the 10407 generates two PWM
signals (9 bit resolution) :
The first one represents the sine PWMSIN,
The second one is the cosine PWMCOS.
The 10407 uses a 512x9 ROM containing the sine of all angular values in the range [0° -89.8°]
(note that the lsb value of the angle is not used).
An angle value greater than 90° is obtained using different quadrant values :
Q1 (D14D15 = 00) > 0° =< a < 90°
Q2 (D14D15 = 01) > 90° =< a < 180°
Q3 (D14D15 = 10) > 180° =< a < 270°
Q4 (D14D15 = 11) > 270° =< a < 360°
a is the angle value
The PWM are switched to the outputs depending on the value of the quadrant :
QUADRANT
D14
SIN1M
D15
SIN1P
COS1M
COS1P
0
0
0
PWMSIN
0
PWMCOS
0
1
0
PWMCOS
PWMSIN
0
1
0
PWMSIN
0
PWMCOS
0
1
1
PWMCOS
0
0
PWMSIN
Logometer 1 is driven by outputs SIN1M/P COS1M/P,
Logometer 2 is driven by outputs SIN2M/P COS2M/P.
The PWM frequency is given by :
F
PWM
= F
OSC
/ 512 (F
OSC
= Crystal oscillator frequency)
2) Logometers 90°
There are three separate PWM outputs for Logo 3, Logo 4 and Logo 5
.
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相关代理商/技术参数 |
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| MLX10407_02 | 制造商:MELEXIS 制造商全称:Melexis Microelectronic Systems 功能描述:5-Channel Gauge Driver with Serial Link |
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