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參數(shù)資料
型號: DSPIC33FJ128GP710T-I/PF
廠商: Microchip Technology
文件頁數(shù): 20/90頁
文件大?。?/td> 0K
描述: IC DSPIC MCU/DSP 128K 100TQFP
產(chǎn)品培訓模塊: Asynchronous Stimulus
標準包裝: 1,000
系列: dsPIC™ 33F
核心處理器: dsPIC
芯體尺寸: 16-位
速度: 40 MIP
連通性: CAN,I²C,IrDA,LIN,SPI,UART/USART
外圍設備: AC'97,欠壓檢測/復位,DMA,I²S,POR,PWM,WDT
輸入/輸出數(shù): 85
程序存儲器容量: 128KB(128K x 8)
程序存儲器類型: 閃存
RAM 容量: 16K x 8
電壓 - 電源 (Vcc/Vdd): 3 V ~ 3.6 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 32x10b/12b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 100-TQFP
包裝: 帶卷 (TR)
配用: DM300024-ND - KIT DEMO DSPICDEM 1.1
DV164033-ND - KIT START EXPLORER 16 MPLAB ICD2
MA330012-ND - MODULE DSPIC33 100P TO 84QFP
MA330011-ND - MODULE DSPIC33 100P TO 100QFP
DM240001-ND - BOARD DEMO PIC24/DSPIC33/PIC32
AC164323-ND - MODULE SKT FOR 100TQFP
2005 Microchip Technology Inc.
Preliminary
DS70155C-page 25
dsPIC33F
The PWM module has the following features:
Dedicated time base supports TCY/2 PWM edge
resolution
Two output pins (pair) for each PWM generator
Complementary or independent operation for
each output pin pair
Hardware dead-time generators for
Complementary mode
Output pin polarity defined by nonvolatile device
configuration bits
Multiple output modes:
- Edge-Aligned mode
- Center-Aligned mode
- Center-Aligned mode with double updates
- Single Event mode
Manual override register for PWM output pins
Hardware Fault input pins with programmable
function
Trigger for synchronizing A/D samples and
conversions to PWM timing
Each output pin associated with the PWM can be
individually enabled
8.3.1
PWM TIME BASE
The PWM time base is provided by a 15-bit timer with
a prescaler and postscaler. The PWM time base can be
configured for four different modes of operation:
Free-Running mode
Single-Shot mode
Continuous Up/Down Count mode
Continuous Up/Down Count mode with interrupts
for double updates
The Up/Down Counting modes support center-aligned
PWM generation. The Single-Shot mode allows the
PWM module to support pulse control of certain
Electronically Commutated Motors (ECMs).
Table 8-1 lists the frequencies and resolutions that can
be attained as a function of the dsPIC33F device
instruction cycle frequency.
TABLE 8-1:
EXAMPLE PWM FREQUENCIES AND RESOLUTIONS, 1:1 PRESCALER
TCY (FCY)
PTPER Value
PWM Resolution
PWM Frequency*
25 ns (40 MHz)
0x7FFF
16 bits
1220 Hz
25 ns (40 MHz)
0x03FF
11 bits
39.1 kHz
50 ns (20 MHz)
0x7FFF
16 bits
610 Hz
50 ns (20 MHz)
0x01FF
10 bits
39.1 kHz
100 ns (10 MHz)
0x7FFF
16 bits
305 Hz
100 ns (10 MHz)
0x00FF
9 bits
39.1 kHz
200 ns (5 MHz)
0x7FFF
16 bits
153 Hz
200 ns (5 MHz)
0x007F
8 bits
39.1 kHz
* PWM frequencies will be 1/2 the value indicated for center-aligned operation.
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