td(PWD) TMS320F28069, TMS320F28068, " />
參數(shù)資料
型號： TMDXCNCD28069ISO
廠商： Texas Instruments
文件頁數(shù)： 161/174頁
文件大?。?/td> 0K
描述： EVAL PICCOLO CONTROLCARD
標(biāo)準(zhǔn)包裝： 1
系列： TMS320F2806x, Piccolo™, C2000™
主要目的： 接口，RS232，GPIO
嵌入式： 是，MCU，32 位
已用 IC / 零件： TMS320F2806x
已供物品： 板
ADCPWDN/
ADCBGPWD/
ADCREFPWD/
ADCENABLE
Request for ADC
Conversion
td(PWD)
SPRS698D – NOVEMBER 2010 – REVISED DECEMBER 2012
Table 5-22. ADC Power Modes
ADC OPERATING MODE
CONDITIONS
IDDA
UNITS
Mode A – Operating Mode
ADC Clock Enabled
16
mA
Bandgap On (ADCBGPWD = 1)
Reference On (ADCREFPWD = 1)
ADC Powered Up (ADCPWDN = 1)
Mode B – Quick Wake Mode
ADC Clock Enabled
4
mA
Bandgap On (ADCBGPWD = 1)
Reference On (ADCREFPWD = 1)
ADC Powered Up (ADCPWDN = 0)
Mode C – Comparator-Only Mode
ADC Clock Enabled
1.5
mA
Bandgap On (ADCBGPWD = 1)
Reference On (ADCREFPWD = 0)
ADC Powered Up (ADCPWDN = 0)
Mode D – Off Mode
ADC Clock Enabled
0.075
mA
Bandgap On (ADCBGPWD = 0)
Reference On (ADCREFPWD = 0)
ADC Powered Up (ADCPWDN = 0)
5.10.1.3.1 Internal Temperature Sensor
Table 5-23. Temperature Sensor Coefficient
PARAMETER(1)
MIN
TYP
MAX
UNIT
TSLOPE
Degrees C of temperature movement per measured ADC LSB change of the
0.18(2)(3)
°C/LSB
temperature sensor
TOFFSET
ADC output at 0°C of the temperature sensor
1750
LSB
(1)
The temperature sensor slope and offset are given in terms of ADC LSBs using the internal reference of the ADC. Values must be
adjusted accordingly in external reference mode to the external reference voltage.
(2)
ADC temperature coeffieicient is accounted for in this specification
(3)
Output of the temperature sensor (in terms of LSBs) is sign-consistent with the direction of the temperature movement. Increasing
temperatures will give increasing ADC values relative to an initial value; decreasing temperatures will give decreasing ADC values
relative to an initial value.
5.10.1.3.2 ADC Power-Up Control Bit Timing
Table 5-24. ADC Power-Up Delays
PARAMETER(1)
MIN
MAX
UNIT
td(PWD)
Delay time for the ADC to be stable after power up
1
ms
(1)
Timings maintain compatibility to the ADC module. The 2806x ADC supports driving all 3 bits at the same time td(PWD) ms before first
conversion.
Figure 5-17. ADC Conversion Timing
Copyright 2010–2012, Texas Instruments Incorporated
Peripheral and Electrical Specifications
87
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