Datasheet 搜索 > 微控制器 > Microchip（微芯） > PIC16F1933-E/MV 数据手册 > PIC16F1933-E/MV 其他数据使用手册 5/8 页
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PIC16F1933-E/MV 其他数据使用手册 - Microchip（微芯）
制造商:
Microchip（微芯）
分类:
微控制器
封装:
UQFN-28
描述:
28 /40/ 44引脚基于闪存的8位CMOS微控制器与LCD驱动器和纳瓦技术 28/40/44-Pin Flash-Based, 8-Bit CMOS Microcontrollers with LCD Driver and nanoWatt Technology
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PIC16F1933-E/MV数据手册
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of 8 Go
若手册格式错乱，请下载阅览PDF原文件
5
Core Independent Peripherals for 8-bit PIC Microcontrollers
Numerically Controlled Oscillator (NCO)
Oscillator Capabilities with True Linear Frequency Control
Example: Fluorescent Lighting Control
■ Use the NCO to create linear frequencies for start-up and dimming control
■ Lower power and extend life of fluorescent bulb
Key Features
■ Up to 20-bit frequency resolution
■ Multiple internal and external clock sources available
■ 16b numeric frequency control
• 625 kHz max output with 20MHz oscillator
• 0.03 Hz min step size with 31kHz internal oscillator
■ 2 Output modes
• Fixed 50% Duty Cycle
• Pulse Frequency Modulation (PFM)
Benefits
■ True linear frequency control
■ Increased frequency resolution
Example Applications
■ Fluorescent ballast and LED lighting control
■ Motor drivers
■ Modems
■ Class D audio amplifiers
■ Ultrasonic ranging
Ov erflow
Increment (16-bit)
Accumulator (20-bit)
Numeric
Increment
Value
Ou tput Generation
Output
16 MH
z
Clock
F FFF
NCO
FDC
PFM
or
1
2
NCO
PIC
®
Microcontroller
ADC
Light Output
Bulb Voltage
Frequency
Max.
Brightness
Min.
Brightness
NCO provides linear
control over entire range
8-bit Peripheral Highlights
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