參數(shù)資料
型號： TMS320V642AZDK6
廠商： Texas Instruments, Inc.
英文描述： 1A, 52kHz (250khz Max) Current Mode PWM Control Circuit with 8.4 UVLO Threshold and 48% Max Duty Cycle<sup>3</sup><sup>3</sup><sup>3</sup><sup>3</sup><sup>3</sup><sup>3</sup><sup>3</sup><sup>3</sup><sup>3</sup><sup>3</sup><sup>3</sup> ; Package: 8 LEAD PDIP; No of Pins: 8; Container: Rail; Qty per Container: 50
中文描述： 視頻/影像定點數(shù)字信號處理器
文件頁數(shù)： 50/123頁
文件大?。?/td> 1205K
代理商： TMS320V642AZDK6
www.ti.com
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
4.3
Hi-Resolution PWM (HRPWM)
TMS320F2808, TMS320F2806
TMS320F2801, UCD9501
Digital Signal Processors
SPRS230F–OCTOBER 2003–REVISED SEPTEMBER 2005
Figure 4-4. ePWM Sub-modules Showing Critical Internal Signal Interconects
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.
Only PWM channels ePWM 1A, 2A, 3A, 4A support HRPWM features. The remaining ePWM
channels do not support the HRPWM features.
50
Peripherals
相關(guān)PDF資料
PDF描述
TMS320V642AZDK7 1A, 52kHz (250kHz Max) Current Mode PWM Control Circuit with 8.4V UVLO Threshold and 48&#37; Max Duty Cycle; Package: SOIC-8 Narrow Body; No of Pins: 8; Container: Rail; Qty per Container: 98
TMS320V642AZNZ5 Video/Imaging Fixed-Point Digital Signal Processor
TMS320V642AZNZ6 1A, 52kHz (250kHz Max) Current Mode PWM Control Circuit with 8.4V UVLO Threshold and 48&#37; Max Duty Cycle; Package: SOIC-8 Narrow Body; No of Pins: 8; Container: Tape and Reel; Qty per Container: 2500
TMS320V642AZNZ7 Video/Imaging Fixed-Point Digital Signal Processor
TMS320VC54x Small Signal MOSFET 150 mAmps, 60 Volts; Package: TO-92 (TO-226) 5.33mm Body Height; No of Pins: 3; Container: Bulk; Qty per Container: 1000
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TMS320V642AZDK7 制造商:Texas Instruments 功能描述:TMS320DM642A 548PIN FCBGA 720MHZ PG2.0 - Trays
TMS320V642AZNZ5 制造商:Texas Instruments 功能描述:TMS320DM642A PG2 548PIN FCBGA 500 MHZ - Trays
TMS320V642AZNZ6 制造商:Texas Instruments 功能描述:TMS320DM642A PG2 548PIN FCBGA 600MHZ - Trays
TMS320V642AZNZ7 制造商:Texas Instruments 功能描述:TMS320DM642A PG2 548PIN FCBGA 720MHZ - Trays
TMS320V643AGDK5 制造商:Texas Instruments 功能描述:TMS320DM643 548PIN FCBGA 500 MHZ PG2.0 - Trays
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