參數(shù)資料
型號: TMS320LF2407PZ
廠商: Texas Instruments, Inc.
元件分類: 數(shù)字信號處理
英文描述: DSP CONTROLLERS
中文描述: DSP控制器
文件頁數(shù): 112/123頁
文件大小: 1205K
代理商: TMS320LF2407PZ
www.ti.com
6.9.7.3
Sequential Sampling Mode (Single-Channel) (SMODE = 0)
Analog Input on
Channel Ax or Bx
ADC Clock
Sample and Hold
SH Pulse
SMODE Bit
t
dschx_n
t
dschx_n+1
Sample n
Sample n+1
Sample n+2
t
SH
ADC Event Trigger from
ePWM or Other Sources
t
d(SH)
TMS320F2808, TMS320F2806
TMS320F2801, UCD9501
Digital Signal Processors
SPRS230F–OCTOBER 2003–REVISED SEPTEMBER 2005
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 6-23. Sequential Sampling Mode (Single-Channel) Timing
Table 6-39. Sequential Sampling Mode Timing
SAMPLE n
SAMPLE n + 1
AT 12.5 MHz
ADC CLOCK,
t
c(ADCCLK)
= 80 nS
REMARKS
t
d(SH)
Delay time from event trigger to
sampling
Sample/Hold width/Acquisition
Width
Delay time for first result to appear
in Result register
Delay time for successive results to
appear in Result register
2.5t
c(ADCCLK)
t
SH
(1 + Acqps) *
t
c(ADCCLK)
4t
c(ADCCLK)
80 ns with Acqps = 0
Acqps value = 0-15
ADCTRL1[8:11]
t
d(schx_n)
320 ns
t
d(schx_n+1)
(2 + Acqps) *
t
c(ADCCLK)
160 ns
112
Electrical Specifications
相關(guān)PDF資料
PDF描述
TMS320M642AGDK5 Video/Imaging Fixed-Point Digital Signal Processor
TMS320M642AGDK6 1A, 52kHz (250kHz Max) Current Mode PWM Control Circuit with 8.4V UVLO Threshold and 96% Max Duty Cycle; Package: SOIC 14 LEAD; No of Pins: 14; Container: Tape and Reel; Qty per Container: 2500
TMS320M642AGDK7 Video/Imaging Fixed-Point Digital Signal Processor
TMS320E17 200mA, 40kHz PWM Control Circuit with 6.4V UVLO Threshold and 48% Max Duty Cycle; Package: SOIC 16 LEAD; No of Pins: 16; Container: Tape and Reel; Qty per Container: 2500
TMS320LC2402 32A 24-32V Transient Suppressor ; Package: Can Button; No of Pins: 2; Container: Bulk; Qty per Container: 5000
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TMS320M640AGNZ4 制造商:Texas Instruments 功能描述:TMS320DM640 548PIN FCBGA PG2.0 - Trays
TMS320M641AGDK5 制造商:Texas Instruments 功能描述:TMS320DM641AGDK PG2 548 PIN FCBGA 500MHZ - Trays
TMS320M641AGDK6 制造商:Texas Instruments 功能描述:TMS320DM641AGDK PG2 548 PIN FCBGA - Trays
TMS320M641AGNZ5 制造商:Texas Instruments 功能描述:TMS320DM641A 548PIN FCBGA PG2.0 500MHZ - Trays
TMS320M641AGNZ6 制造商:Texas Instruments 功能描述:TMS320DM641A 548PIN FCBGA PG2.0 600 MHZ - Trays