参数资料
型号: ADUC843BCPZ8-5
厂商: Analog Devices Inc
文件页数: 7/88页
文件大小: 0K
描述: IC MCU FLASH 12BIT ADC 56LFCSP
标准包装: 1
系列: MicroConverter® ADuC8xx
核心处理器: 8052
芯体尺寸: 8-位
速度: 16.78MHz
连通性: I²C,SPI,UART/USART
外围设备: DMA,PSM,PWM,温度传感器,WDT
输入/输出数: 32
程序存储器容量: 8KB(8K x 8)
程序存储器类型: 闪存
RAM 容量: 2.25K x 8
电压 - 电源 (Vcc/Vdd): 4.75 V ~ 5.25 V
数据转换器: A/D 8x12b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 56-VFQFN 裸露焊盘,CSP
包装: 托盘
ADuC841/ADuC842/ADuC843
Rev. 0 | Page 15 of 88
EXTERNAL REFERENCE (V)
50
0.5
S
NR
(dBs
)
1.0
2.0
2.5
5.0
55
1.5
60
65
70
75
80
THD
(dBs
)
–100
–95
–90
–85
–80
–75
–70
AVDD /DVDD = 5V
fS = 152kHz
SNR
THD
03260-0-017
Figure 19. Typical Dynamic Performance vs. VREF, VDD = 5 V
EXTERNAL REFERENCE (V)
S
NR
(dBs
)
80
75
65
50
70
55
AVDD/DVDD = 3V
f
S = 152kHz
0.5
1.5
2.5
THD
(dBs
)
SNR
THD
60
–70
–75
–85
–100
–80
–95
–90
1.0
2.0
3.0
03260-0-018
Figure 20. Typical Dynamic Performance vs. VREF, VDD = 3 V
FREQUENCY (kHz)
64
92.262
SN
R
(dBs
)
119.050
172.620
199.410
226.190
66
145.830
68
70
72
76
80
78
74
62
60
65.476
03260-0-019
300.000
350.000
400.000
AVDD /DVDD = 5V
Figure 21. Typical Dynamic Performance vs. Sampling Frequency
TEMPERATURE (
°C)
03260-0-100
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
–40
25
85
VOLTAGE
AVDD/DVDD = 3V
SLOPE = –1.4mV/
°C
Figure 22. Typical Temperature Sensor Output vs. Temperature
GENERAL DESCRIPTION (continued)
The parts also incorporate additional analog functionality with
two 12-bit DACs, power supply monitor, and a band gap
reference. On-chip digital peripherals include two 16-bit -.
DACs, a dual output 16-bit PWM, a watchdog timer, a time
interval counter, three timers/counters, and three serial I/O
ports (SPI, I2C, and UART).
On the ADuC812 and the ADuC832, the I2C and SPI interfaces
share some of the same pins. For backwards compatibility, this
is also the case for the ADuC841/ADuC842/ADuC843.
However, there is also the option to allow SPI operate separately
on P3.3, P3.4, and P3.5, while I2C uses the standard pins. The
I2C interface has also been enhanced to offer repeated start,
general call, and quad addressing.
On-chip factory firmware supports in-circuit serial download
and debug modes (via UART) as well as single-pin emulation
mode via the EA pin. A functional block diagram of the parts is
shown on the first page.
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