tdschx_n
參數(shù)資料
型號(hào): SM320F28335GHHAEP
廠商: Texas Instruments
文件頁數(shù): 56/167頁
文件大?。?/td> 0K
描述: IC DIGITAL SIGNAL CTLR 179-BGA
產(chǎn)品培訓(xùn)模塊: ControlSUITE
Motor Signal Chain Overview
TPS75005 Single IC Power for C2000 MCU
標(biāo)準(zhǔn)包裝: 189
系列: TMS320F28x3x Delfino™, C2000™
核心處理器: C28x
芯體尺寸: 32-位
速度: 150MHz
連通性: CAN,EBI/EMI,I²C,McBSP,SCI,SPI,UART/USART
外圍設(shè)備: DMA,POR,PWM,WDT
輸入/輸出數(shù): 88
程序存儲(chǔ)器容量: 512KB(256K x 16)
程序存儲(chǔ)器類型: 閃存
RAM 容量: 34K x 16
電壓 - 電源 (Vcc/Vdd): 1.805 V ~ 1.995 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 16x12b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 179-LFBGA
包裝: 托盤
產(chǎn)品目錄頁面: 718 (CN2011-ZH PDF)
其它名稱: 296-25243
Analog Input on
Channel Ax or Bx
ADC Clock
Sample and Hold
SH Pulse
SMODE Bit
tdschx_n
tdschx_n+1
Sample n
Sample n+1
Sample n+2
tSH
ADC Event Trigger from
ePWM or Other Sources
td(SH)
SPRS581D – JUNE 2009 – REVISED MAY 2012
6.15.3 Sequential Sampling Mode (Single-Channel) (SMODE = 0)
In sequential sampling mode, the ADC can continuously convert input signals on any of the channels (Ax
to Bx). The ADC can start conversions on event triggers from the ePWM, software trigger, or from an
external ADCSOC signal. If the SMODE bit is 0, the ADC will do conversions on the selected channel on
every Sample/Hold pulse. The conversion time and latency of the Result register update are explained
below. The ADC interrupt flags are set a few SYSCLKOUT cycles after the Result register update. The
selected channels will be sampled at every falling edge of the Sample/Hold pulse. The Sample/Hold pulse
width can be programmed to be 1 ADC clock wide (minimum) or 16 ADC clocks wide (maximum).
Figure 6-34. Sequential Sampling Mode (Single-Channel) Timing
Table 6-52. Sequential Sampling Mode Timing
AT 25 MHz
SAMPLE n
SAMPLE n + 1
ADC CLOCK,
REMARKS
tc(ADCCLK) = 40 ns
td(SH)
Delay time from event trigger to
2.5tc(ADCCLK)
sampling
tSH
Sample/Hold width/Acquisition
(1 + Acqps) *
40 ns with Acqps = 0
Acqps value = 0-15
Width
tc(ADCCLK)
ADCTRL1[8:11]
td(schx_n)
Delay time for first result to appear
4tc(ADCCLK)
160 ns
in Result register
td(schx_n+1)
Delay time for successive results to
(2 + Acqps) *
80 ns
appear in Result register
tc(ADCCLK)
Copyright 2009–2012, Texas Instruments Incorporated
Electrical Specifications
149
Product Folder Link(s): SM320F28335-EP
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