参数资料
型号: EFM32GG940F512
厂商: Energy Micro
文件页数: 30/68页
文件大小: 0K
描述: IC MCU 32BIT 512KB FLASH QFN64
标准包装: 1,000
系列: Giant Gecko
核心处理器: ARM? Cortex?-M3
芯体尺寸: 32-位
速度: 48MHz
连通性: I²C,IrDA,智能卡,SPI,UART/USART
外围设备: 欠压检测/复位,DMA,LCD,POR,PWM,WDT
输入/输出数: 53
程序存储器容量: 512KB(512K x 8)
程序存储器类型: 闪存
RAM 容量: 128K x 8
电压 - 电源 (Vcc/Vdd): 1.85 V ~ 3.8 V
数据转换器: A/D 8x12b,D/A 2x12b
振荡器型: 外部
工作温度: -40°C ~ 85°C
封装/外壳: 64-WFQFN 裸露焊盘
包装: 带卷 (TR)
Preliminary
...the world's most energy friendly microcontrollers
2013-06-28 - EFM32GG940FXX - d0044_Rev1.10
36
www.energymicro.com
Figure 3.19. ADC Temperature sensor readout
–40
–25 –15
–5
5
15
25
35
45
55
65
75
85
Tem perat ure [ ° C]
2100
2200
2300
2400
2500
2600
S
e
n
s
o
r
re
a
d
o
u
t
Vdd= 1.8
Vdd= 3
Vdd= 3.8
3.11 Digital Analog Converter (DAC)
Table 3.15. DAC
Symbol
Parameter
Condition
Min
Typ
Max
Unit
VDD voltage reference, single
ended
0
VDD V
VDACOUT
Output voltage range
VDD voltage reference, differ-
ential
-VDD
VDD V
VDACCM
Output common mode volt-
age range
0
VDD V
500 kSamples/s, 12bit
400
A
100 kSamples/s, 12 bit
200
A
IDAC
Active current including ref-
erences for 2 channels
1 kSamples/s 12 bit NORMAL
38
A
SRDAC
Sample rate
500
ksam-
ples/s
Continuous Mode
1000
kHz
Sample/Hold Mode
250
kHz
fDAC
DAC clock frequency
Sample/Off Mode
250
kHz
CYCDACCONV
Clock cyckles per conver-
sion
2
tDACCONV
Conversion time
2
s
tDACSETTLE
Settling time
5
s
500 kSamples/s, 12 bit, sin-
gle ended, internal 1.25V ref-
erence
58
dB
500 kSamples/s, 12 bit, sin-
gle ended, internal 2.5V refer-
ence
59
dB
SNRDAC
Signal to Noise Ratio
(SNR)
500 kSamples/s, 12 bit, dif-
ferential, internal 1.25V refer-
ence
58
dB
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