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| 型号： | ADUC834BCPZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 14/80页 |
| 文件大小： | 0K |
| 描述： | IC MCU 62K FLASH ADC/DAC 56LFCSP |
| 标准包装： | 1 |
| 系列： | MicroConverter® ADuC8xx |
| 核心处理器： | 8052 |
| 芯体尺寸： | 8-位 |
| 速度： | 12.58MHz |
| 连通性： | EBI/EMI，I²C，SPI，UART/USART |
| 外围设备： | POR，PSM，PWM，温度传感器，WDT |
| 输入/输出数： | 34 |
| 程序存储器容量： | 62KB（62K x 8） |
| 程序存储器类型： | 闪存 |
| EEPROM 大小： | 4K x 8 |
| RAM 容量： | 2.25K x 8 |
| 电压 - 电源 (Vcc/Vdd)： | 2.7 V ~ 5.25 V |
| 数据转换器： | A/D 3x16b，4x24b; D/A 1x12b |
| 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 |
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REV. A
ADuC834
–21–
SF (Sinc Filter Register)
The number in this register sets the decimation factor and thus
the output update rate for the primary and auxiliary ADCs.
This SFR cannot be written by user software while either ADC
is active. The update rate applies to both primary and auxiliary
ADCs and is calculated as follows:
f
SF
f
ADC
MOD
=×
×
1
3
1
8
Where:
fADC = ADC Output Update Rate
fMOD = Modulator Clock Frequency = 32.768 kHz
SF = Decimal Value of SF Register
The allowable range for SF is 0DH to FFH. Examples of SF values
and corresponding conversion update rates (fADC) and conversion
times (tADC) are shown in Table VIII. The power-on default
value for the SF Register is 45H, resulting in a default ADC
update rate of just under 20 Hz. Both ADC inputs are chopped
to minimize offset errors, which means that the settling time for
a single conversion, or the time to a first conversion result in
Continuous Conversion mode, is 2
tADC. As mentioned earlier,
all calibration cycles will be carried out automatically with a
maximum, i.e., FFH, SF value to ensure optimum calibration
performance. Once a calibration cycle has completed, the value
in the SF Register will be that programmed by user software.
Table VIII. SF SFR Bit Designations
SF(dec)
SF(hex)
fADC(Hz)
tADC(ms)
13
0D
105.3
9.52
69
45
19.79
50.34
255
FF
5.35
186.77
ICON (Current Sources Control Register)
Used to control and configure the various excitation and burnout current source options available on-chip.
SFR Address
D5H
Power-On Default Value
00H
Bit Addressable
No
Table IX. ICON SFR Bit Designations
Bit
Name
Description
7
–––
Reserved for Future Use
6BOBurnout Current Enable Bit.
Set by user to enable both transducer burnout current sources in the primary ADC signal paths.
Cleared by user to disable both transducer burnout current sources.
5
ADC1IC
Auxiliary ADC Current Correction Bit.
Set by user to allow scaling of the auxiliary ADC by an internal current source calibration word.
4
ADC0IC
Primary ADC Current Correction Bit.
Set by user to allow scaling of the primary ADC by an internal current source calibration word.
3
I2PIN
*
Current Source-2 Pin Select Bit.
Set by user to enable current source-2 (200 A) to external Pin 3 (P1.2/DAC/IEXC1).
Cleared by user to enable current source-2 (200 A) to external Pin 4 (P1.3/AIN5/IEXC2).
2
I1PIN
*
Current Source-1 Pin Select Bit.
Set by user to enable current source-1 (200 A) to external Pin 4 (P1.3/AIN5/IEXC2).
Cleared by user to enable current source-1 (200 A) to external Pin 3 (P1.2/DAC/IEXC1).
1
I2EN
Current Source-2 Enable Bit.
Set by user to turn on excitation current source-2 (200 A).
Cleared by user to turn off excitation current source-2 (200 A).
0
I1EN
Current Source-1 Enable Bit.
Set by user to turn on excitation current source-1 (200 A).
Cleared by user to turn off excitation current source-1 (200 A).
*Both current sources can be enabled to the same external pin, yielding a 400
A current source.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ADUC834BCPZ-REEL | 功能描述:IC MCU 62K FLASH ADC/DAC 56LFCSP RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:MicroConverter® ADuC8xx 标准包装:38 系列:Encore!® XP® 核心处理器:eZ8 芯体尺寸:8-位 速度:5MHz 连通性:IrDA，UART/USART 外围设备:欠压检测/复位，LED，POR，PWM，WDT 输入/输出数:16 程序存储器容量:4KB（4K x 8） 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:1K x 8 电压 - 电源 (Vcc/Vdd):2.7 V ~ 3.6 V 数据转换器:- 振荡器型:内部 工作温度:-40°C ~ 105°C 封装/外壳:20-SOIC（0.295"，7.50mm 宽） 包装:管件 其它名称:269-4116Z8F0413SH005EG-ND |
| ADUC834BS | 制造商:Analog Devices 功能描述:MCU 8-bit ADuC8xx 8052 CISC 62KB Flash 3.3V/5V 52-Pin MQFP 制造商:Rochester Electronics LLC 功能描述:8BIT CISC 62KB FLASH 12.58MHZ 3.3/5V 52MQFP - Bulk 制造商:Analog Devices 功能描述:8BIT MCU +24/16BIT ADC SMD MQFP52 |
| ADUC834BSZ | 功能描述:IC ADC DUAL16/24BIT W/MCU 52MQFP RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:MicroConverter® ADuC8xx 标准包装:250 系列:56F8xxx 核心处理器:56800E 芯体尺寸:16-位 速度:60MHz 连通性:CAN，SCI，SPI 外围设备:POR，PWM，温度传感器，WDT 输入/输出数:21 程序存储器容量:40KB（20K x 16） 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:6K x 16 电压 - 电源 (Vcc/Vdd):2.25 V ~ 3.6 V 数据转换器:A/D 6x12b 振荡器型:内部 工作温度:-40°C ~ 125°C 封装/外壳:48-LQFP 包装:托盘 配用:MC56F8323EVME-ND - BOARD EVALUATION MC56F8323 |
| ADUC836 | 制造商:AD 制造商全称:Analog Devices 功能描述:MicroConverter, Dual 16-Bit-ADCs with Embedded 62 kB Flash MCU |
| ADUC836_02 | 制造商:AD 制造商全称:Analog Devices 功能描述:MicroConverter, Dual 16-Bit ADCs with Embedded 62 kB Flash MCU |
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