参数资料
型号: TMS320C241PGS
元件分类: 数字信号处理
英文描述: 16-Bit Digital Signal Processor
中文描述: 16位数字信号处理器
文件页数: 82/116页
文件大小: 1485K
代理商: TMS320C241PGS
TMS320F243, TMS320F241
DSP CONTROLLERS
SPRS064B – DECEMBER 1997 – REVISED FEBRUARY 1999
82
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
TIMING EVENT MANAGER INTERFACE
PWM timings
PWM refers to PWM outputs on PWM1, PWM2, PWM3, PWM4, PWM5, PWM6, T1PWM, and T2PWM.
switching characteristics over recommended operating conditions for PWM timing
[H = 0.5t
c(CO)
] (see Figure 28)
PARAMETER
MIN
MAX
UNIT
tw(PWM)
td(PWM)CO
PWM outputs may be 100%, 0%, or increments of tc(CO) with respect to the PWM period.
Pulse duration, PWM output high/low
2H+5
ns
Delay time, CLKOUT low to PWM output switching
15
ns
timing requirements
[H = 0.5t
c(CO)
] (see Figure 29)
MIN
MAX
UNIT
tw(TMRDIR)
tw(TMRCLK)
twh(TMRCLK)
tc(TMRCLK)
Parameter TMRDIR is equal to the pin TDIR, and parameter TMRCLK is equal to the pin TCLKIN.
Pulse duration, TMRDIR low/high
4H+5
ns
Pulse duration, TMRCLK low as a percentage of TMRCLK cycle time
40
60
%
Pulse duration, TMRCLK high as a percentage of TMRCLK cycle time
40
60
%
Cycle time, TMRCLK
4
tc(CO)
ns
tw(PWM)
td(PWM)CO
PWMx
CLKOUT
Figure 28. PWM Output Timing
CLKOUT
tw(TMRDIR)
TMRDIR
Figure 29. Capture/TMRDIR Timing
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