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TMS320F28335ZHHA 参数 Datasheet PDF下载

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型号: TMS320F28335ZHHA
PDF下载: 下载PDF文件 查看货源
内容描述: 数字信号控制器(DSC ) [Digital Signal Controllers (DSCs)]
分类和应用: 微控制器和处理器外围集成电路数字信号处理器装置PC时钟
文件页数/大小: 195 页 / 2496 K
品牌: TI [ TEXAS INSTRUMENTS ]
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TMS320F28335, TMS320F28334, TMS320F28332  
TMS320F28235, TMS320F28234, TMS320F28232  
SPRS439IJUNE 2007REVISED MARCH 2011  
www.ti.com  
Table 6-23 shows the high-resolution PWM switching characteristics.  
Table 6-23. High-Resolution PWM Characteristics at SYSCLKOUT = (60 –150 MHz)  
MIN  
TYP  
MAX UNIT  
310 ps  
Micro Edge Positioning (MEP) step size(1)  
150  
(1) Maximum MEP step size is based on worst-case process, maximum temperature and maximum voltage. MEP step size will increase  
with low voltage and high temperature and decrease with voltage and cold temperature.  
Applications that use the HRPWM feature should use MEP Scale Factor Optimizer (SFO) estimation software functions. See the TI  
software libraries for details of using SFO function in end applications. SFO functions help to estimate the number of MEP steps per  
SYSCLKOUT period dynamically while the HRPWM is in operation.  
6.10.3 Enhanced Capture (eCAP) Timing  
Table 6-24 shows the eCAP timing requirement and Table 6-25 shows the eCAP switching characteristics.  
Table 6-24. Enhanced Capture (eCAP) Timing Requirement(1)  
TEST CONDITIONS  
Asynchronous  
MIN  
2tc(SCO)  
MAX UNIT  
cycles  
tw(CAP)  
Capture input pulse width  
Synchronous  
2tc(SCO)  
cycles  
With input qualifier  
1tc(SCO) + tw(IQSW)  
cycles  
(1) For an explanation of the input qualifier parameters, see Table 6-13.  
Table 6-25. eCAP Switching Characteristics  
PARAMETER  
TEST CONDITIONS  
MIN  
MAX  
UNIT  
tw(APWM)  
Pulse duration, APWMx output high/low  
20  
ns  
6.10.4 Enhanced Quadrature Encoder Pulse (eQEP) Timing  
Table 6-26 shows the eQEP timing requirement and Table 6-27 shows the eQEP switching  
characteristics.  
Table 6-26. Enhanced Quadrature Encoder Pulse (eQEP) Timing Requirements(1)  
TEST CONDITIONS  
Asynchronous/synchronous  
With input qualifier  
MIN  
MAX  
UNIT  
cycles  
cycles  
cycles  
cycles  
cycles  
cycles  
cycles  
cycles  
cycles  
cycles  
tw(QEPP)  
QEP input period  
2tc(SCO)  
2[1tc(SCO) + tw(IQSW)  
]
tw(INDEXH)  
tw(INDEXL)  
tw(STROBH)  
tw(STROBL)  
QEP Index Input High time  
QEP Index Input Low time  
QEP Strobe High time  
QEP Strobe Input Low time  
Asynchronous/synchronous  
With input qualifier  
2tc(SCO)  
2tc(SCO) + tw(IQSW)  
2tc(SCO)  
Asynchronous/synchronous  
With input qualifier  
2tc(SCO) + tw(IQSW)  
2tc(SCO)  
2tc(SCO) + tw(IQSW)  
2tc(SCO)  
Asynchronous/synchronous  
With input qualifier  
Asynchronous/synchronous  
With input qualifier  
2tc(SCO) + tw(IQSW)  
(1) For an explanation of the input qualifier parameters, see Table 6-13.  
Table 6-27. eQEP Switching Characteristics  
PARAMETER  
TEST CONDITIONS  
MIN  
MAX  
UNIT  
cycles  
cycles  
td(CNTR)xin  
Delay time, external clock to counter increment  
4tc(SCO)  
6tc(SCO)  
td(PCS-OUT)QEP  
Delay time, QEP input edge to position compare sync  
output  
140  
Electrical Specifications  
Copyright © 2007–2011, Texas Instruments Incorporated  
Submit Documentation Feedback  
Product Folder Link(s): TMS320F28335 TMS320F28334 TMS320F28332 TMS320F28235 TMS320F28234  
TMS320F28232  
 
 
 
 
 
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