參數(shù)資料
型號： TMS320F28335_1
廠商： Texas Instruments, Inc.
英文描述： Variable Capacitance Diode for TV Tuner VHF Tuning; Ratings VR (V): 32; Characteristics n: 12.0 min; Characteristics rs (ohm) max: 0.85; Characteristics C (pF) max: C2 = 32.2 to 37.5 C25 = 2.57 to 3.0; Characteristics CVR/CVR: 2/25; Cl: 2.777; Package: UFP
中文描述： 數(shù)字信號控制器（DSC）
文件頁數(shù)： 66/166頁
文件大?。?/td> 1889K
代理商： TMS320F28335_1
www.ti.com
A
CTR=PRD
TBPRD shadow (16)
TBPRD active (16)
Counter
up/down
(16 bit)
TBCNT
active (16)
TBCTL[CNTLDE]
TBCTL[SWFSYNC]
(software forced sync)
EPWMxSYNCI
CTR=ZERO
CTR=CMPB
Disabled
CTR_Dir
Sync
in/out
select
Mux
TBCTL[SYNCOSEL]
EPWMxSYNCO
TBPHS active (24)
16
8
TBPHSHR (8)
Phase
control
Timebase (TB)
CTR=CMPA
CMPAHR (8)
CMPA active (24)
16
CMPA shadow (24)
Action
qualifier
(AQ)
8
16
Counter compare (CC)
CMPB active (16)
CTR=CMPB
CMPB shadow (16)
EPWMA
EPWMB
Dead
band
(DB)
(PC)
chopper
PWM
zone
(TZ)
Trip
CTR = ZERO
EPWMxAO
EPWMxBO
EPWMxTZINT
TZ1 to TZ6
HiRes PWM (HRPWM)
CTR = PRD
CTR = ZERO
CTR = CMPA
CTR = CMPB
CTR_Dir
Event
trigger
and
interrupt
(ET)
EPWMxINT
EPWMxSOCA
EPWMxSOCB
CTR=ZERO
4.4
High-Resolution PWM (HRPWM)
TMS320F28335, TMS320F28334, TMS320F28332
Digital Signal Controllers (DSCs)
SPRS439B–JUNE 2007–REVISED OCTOBER 2007
Figure 4-5. ePWM Sub-Modules Showing Critical Internal Signal Interconnections
The HRPWM module offers PWM resolution (time granularity) which is significantly better than what can
be achieved using conventionally derived digital PWM methods. The key points for the HRPWM module
are:
Significantly extends the time resolution capabilities of conventionally derived digital PWM
Typically used when effective PWM resolution falls below ~ 9-10 bits. This occurs at PWM frequencies
greater than ~200 KHz when using a CPU/System clock of 100 MHz.
This capability can be utilized in both duty cycle and phase-shift control methods.
Finer time granularity control or edge positioning is controlled via extensions to the Compare A and
Phase registers of the ePWM module.
HRPWM capabilities are offered only on the A signal path of an ePWM module (i.e., on the EPWMxA
output). EPWMxB output has conventional PWM capabilities.
Peripherals
66
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TMS320F28335PGFA 制造商:Texas Instruments 功能描述:IC DSC 32BIT 512KB 150MHZ 1.995V LQFP176
TMS320F28335PTPQ 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC Delfino Micrcntrlr RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT
TMS320F28335PTPS 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC Delfino Micrcntrlr RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT
TMS320F28335ZHHA 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC Digital Signal Controller RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT
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