参数资料
型号: TMX320F28069UPFPA
厂商: Texas Instruments
文件页数: 157/174页
文件大小: 0K
描述: IC MCU 32BIT 128KB FLASH 80HTQFP
产品培训模块: ControlSUITE
Piccolo F2806x
标准包装: 1
系列: TMS320F2806x, Piccolo™, C2000™
核心处理器: C28x
芯体尺寸: 32-位
速度: 80MHz
连通性: CAN,I²C,McBSP,SCI,SPI,UART/USART
外围设备: 欠压检测/复位,DMA,POR,PWM,WDT
输入/输出数: 40
程序存储器容量: 256KB(128K x 16)
程序存储器类型: 闪存
RAM 容量: 50K x 16
电压 - 电源 (Vcc/Vdd): 1.71 V ~ 1.995 V
数据转换器: A/D 12x12b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 80-TQFP 裸露焊盘
包装: 托盘
其它名称: 296-30085
TMX320F28069UPFPA-ND
0,
Value
Digital
=
V
0
input
when
V
Voltage
Analog
Input
4096
Value
Digital
REFLO
REFHI
REFLO
-
=
V
input
V
0
when
REFHI
<
4095,
Value
Digital
=
V
input
when
REFHI
0,
Value
Digital
=
V
0
input
when
3.3
V
Voltage
Analog
Input
4096
Value
Digital
REFLO
-
=
V
3.3
input
V
0
when
<
4095,
Value
Digital
=
V
3.3
input
when
SPRS698D – NOVEMBER 2010 – REVISED DECEMBER 2012
5.10.1 Analog-to-Digital Converter (ADC)
5.10.1.1 Features
The core of the ADC contains a single 12-bit converter fed by two sample-and-hold circuits. The sample-
and-hold circuits can be sampled simultaneously or sequentially. These, in turn, are fed by a total of up to
16 analog input channels. The converter can be configured to run with an internal bandgap reference to
create true-voltage based conversions or with a pair of external voltage references (VREFHI/VREFLO) to
create ratiometric-based conversions.
Contrary to previous ADC types, this ADC is not sequencer-based. The user can easily create a series of
conversions from a single trigger. However, the basic principle of operation is centered around the
configurations of individual conversions, called SOCs, or Start-Of-Conversions.
Functions of the ADC module include:
12-bit ADC core with built-in dual sample-and-hold (S/H)
Simultaneous sampling or sequential sampling modes
Full range analog input: 0 V to 3.3 V fixed, or VREFHI/VREFLO ratiometric. The digital value of the input
analog voltage is derived by:
Internal Reference (VREFLO = VSSA. VREFHI must not exceed VDDA when using either internal or
external reference modes.)
External Reference (VREFHI/VREFLO connected to external references. VREFHI must not exceed VDDA
when using either internal or external reference modes.)
Runs at full system clock, no prescaling required
Up to 16-channel, multiplexed inputs
16 SOCs, configurable for trigger, sample window, and channel
16 result registers (individually addressable) to store conversion values
Multiple trigger sources
S/W – software immediate start
ePWM 1–8
GPIO XINT2
CPU Timer 0, CPU Timer 1, CPU Timer 2
ADCINT1, ADCINT2
9 flexible PIE interrupts, can configure interrupt request after any conversion
Copyright 2010–2012, Texas Instruments Incorporated
Peripheral and Electrical Specifications
83
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