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参数资料
| 型号： | ADUC7032BSTZ-88-RL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 73/120页 |
| 文件大小： | 0K |
| 描述： | IC MCU 96K FLASH DUAL 48LQFP |
| 标准包装： | 2,000 |
| 系列： | MicroConverter® ADuC7xxx |
| 核心处理器： | ARM7 |
| 芯体尺寸： | 16/32-位 |
| 速度： | 20.48MHz |
| 连通性： | LIN，SPI，UART/USART |
| 外围设备： | POR，PSM，温度传感器，WDT |
| 输入/输出数： | 9 |
| 程序存储器容量： | 96KB（48K x 16） |
| 程序存储器类型： | 闪存 |
| RAM 容量： | 1.5K x 32 |
| 电压 - 电源 (Vcc/Vdd)： | 3.5 V ~ 18 V |
| 数据转换器： | A/D 2x16b |
| 振荡器型： | 内部 |
| 工作温度： | -40°C ~ 105°C |
| 封装/外壳： | 48-LQFP |
| 包装： | 带卷 (TR) |
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ADuC7032-8L
Rev. A | Page 56 of 120
By default, the ADCFLT = 0x0007 configures the ADCs for
a throughput of 1.0 kHz with all other filtering options (chop,
running average, averaging factor, and Sinc3 modify) disabled.
A typical filter response based on this default configuration is
shown in Figure 19.
–100
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
0
500
1000 1500 2000 2500 3000 3500 4000 4500 5000
(d
B
)
FREQUENCY (Hz)
05
98
6-
01
9
Figure 19. Typical Digital Filter Response at fADC = 1.0 kHz
(ADCFLT = 0x0007)
An additional Sinc3 modify bit (ADCFLT[7]) is also available in
the ADCFLT register. This bit is set by user code to modify the
standard Sinc3 frequency response, increasing the filter stopband
rejection by 5 dB approximate. This is achieved by inserting a
second notch (NOTCH2) at fNOTCH2 = 1.333 × fNOTCH where fNOTCH
is the location of the first notch in the response. There is a slight
increase in ADC noise if this bit is active. Figure 20 shows the
modified 1 kHz filter response when the Sinc3 modify bit is
active. The new notch is clearly visible at 1.33 kHz, as is the
improvement in stopband rejection when compared to the
standard 1 kHz response shown in Figure 19.
–100
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
0
500
1000 1500 2000 2500 3000 3500 4000 4500 5000
(d
B
)
FREQUENCY (Hz)
05
98
6-
02
0
Figure 20. Modified Sinc3 Digital Filter Response at fADC = 1.0 kHz
(ADCFLT = 0x0087)
In ADC normal power mode, the maximum ADC throughput
rate is 8 kHz, which is configured by setting the SF and AF bits
in the ADCFLT MMR to 0, with all other filtering options disabled.
This results in 0x0000 written to ADCFLT. A typical 8 kHz filter
response, based on these settings, is shown in Figure 21.
–100
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
0
2
4
6
8
1012141618202224
(d
B
)
FREQUENCY (kHz)
05
98
6-
02
1
Figure 21. Typical Digital Filter Response at fADC = 8 kHz, (ADCFLT = 0x0000)
A modified version of the 8 kHz filter response can be configured
by setting the running average bit (ADCFLT[14]). This has the
effect of introducing an additional running average-by-2 filter
on all ADC output samples. This further reduces the ADC output
noise, and while maintaining an 8 kHz ADC throughput rate,
the ADC settling time is increased by one full conversion period.
The modified frequency response for this configuration is
shown in Figure 22.
–100
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
0
2
4
6
8
1012141618202224
(d
B
)
FREQUENCY (kHz)
05
98
6-
02
2
Figure 22. Typical Digital Filter Response at fADC = 8 kHz,
(ADCFLT = 0x4000)
At very low throughput rates, the chop bit in the ADCFLT
register can be enabled to minimize offset errors and, more
importantly, temperature drift in the ADC dc errors. With
CHOP enabled, there are again two primary variables (Sinc3
decimation factor and averaging factor) available to allow the
user to select an optimum filter response, trading off filter
bandwidth against ADC noise.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ADUC7032BSTZ-8L | 制造商:Analog Devices 功能描述:FLASH 96K ARM7 TRIPLE 16-BIT ADC LIN IC. - Trays |
| ADUC7032BSTZ-8L-RL | 制造商:Analog Devices 功能描述:FLASH 96K ARM7 TRIPLE 16-BIT ADC LIN IC. - Tape and Reel |
| ADUC7032BSTZ-8V | 制造商:Analog Devices 功能描述: 制造商:Rochester Electronics LLC 功能描述: |
| ADUC7032BSTZ-8V-RL | 功能描述:IC BATTERY SENSOR PREC 48-LQFP RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:MicroConverter® ADuC7xxx 标准包装:1,500 系列:AVR® ATtiny 核心处理器:AVR 芯体尺寸:8-位 速度:16MHz 连通性:I²C，LIN，SPI，UART/USART，USI 外围设备:欠压检测/复位，POR，PWM，温度传感器，WDT 输入/输出数:16 程序存储器容量:8KB（4K x 16） 程序存储器类型:闪存 EEPROM 大小:512 x 8 RAM 容量:512 x 8 电压 - 电源 (Vcc/Vdd):2.7 V ~ 5.5 V 数据转换器:A/D 11x10b 振荡器型:内部 工作温度:-40°C ~ 125°C 封装/外壳:20-SOIC（0.295"，7.50mm 宽） 包装:带卷 (TR) |
| ADUC7033 | 制造商:AD 制造商全称:Analog Devices 功能描述:Integrated Precision Battery Sensor For Automotive |
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