参数资料
| 型号： | ADUC831BCPZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 31/76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： | 16MHz |
| 连通性： | EBI/EMI，I²C，SPI，UART/USART |
| 外围设备： | PSM，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 ~ 5.5 V |
| 数据转换器： | A/D 8x12b，D/A 2x12b |
| 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 |
| 配用： | EVAL-ADUC831QSZ-ND - KIT DEV FOR ADUC831 QUICK START |
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REV. 0
ADuC831
–37–
MODE 4: Dual NRZ 16-Bit
-
DAC
Mode 4 provides a high speed PWM output similar to that of a
-
DAC. Typically, this mode will be used with the PWM
clock equal to 16 MHz.
In this mode P2.6 and P2.7 are updated every PWM clock
(62 ns in the case of 16 MHz). Over any 65536 cycles (16 bit
PWM) PWM0 (P2.6) is high for PWM0H/L cycles and low for
(65536 - PWM0H/L) cycles. Similarly PWM1 (P2.7) is high for
PWM1H/L cycles and low for (65536 - PWM1H/L) cycles.
For example, if PWM1H was set to 4010H (slightly above one
quarter of FS) then typically P2.7 will be low for three clocks
and high for one clock (each clock is approximately 80 ns). Over
every 65536 clocks the PWM will compensate for the fact that
the output should be slightly above one quarter of full scale by
having a high cycle followed by only two low cycles.
16MHz
16-BIT
62 s
0
16-BIT
CARRY OUT AT P2.6
PWM0H/L = C000H
PWM1H/L = 4000H
00
1
00
0
LATCH
0
11
1
0
62 s
CARRY OUT AT P2.7
Figure 30. PWM Mode 4
For faster DAC outputs (at lower resolution) write 0s to the
LSBs that are not required. If for example only 12-bit perfor-
mance is required then write 0s to the 4LSBs. This means that a
12-bit accurate
Σ- DAC output can occur at 3.906 kHz. Simi-
larly, writing 0s to the 8 LSBs gives an 8-bit accurate
Σ- DAC
output at 62 kHz.
MODE 5: Dual 8-Bit PWM
In Mode 5, the duty cycle of the PWM outputs and the resolu-
tion of the PWM outputs are individually programmable. The
maximum resolution of the PWM output is eight bits. The
output resolution is set by the PWM1L and PWM1H SFRs for
the P2.6 and P2.7 outputs, respectively. PWM0L and PWM0H
sets the duty cycles of the PWM outputs at P2.6 and P2.7, respec-
tively. Both PWMs have same clock source and clock divider.
P2.7
P2.6
PWM COUNTERS
PWM1H
0
PWM1L
PWM0H
PWM0L
Figure 31. PWM Mode 5
MODE 6: Dual RZ 16-Bit
-
DAC
Mode 6 provides a high speed PWM output similar to that of a
-
DAC. Mode 6 operates very similarly to Mode 4. However,
the key difference is that Mode 6 provides return to zero (RZ)
-
DAC output. Mode 4 provides non-return-to-zero - DAC
outputs. The RZ mode ensures that any difference in the rise
and fall times will not effect the -
DAC INL. However, the
RZ mode halves the dynamic range of the -
DAC outputs
from 0–AVDD down to 0–AVDD/2. For best results, this mode
should be used with a PWM clock divider of four.
If PWM1H was set to 4010H (slightly above one quarter of
FS), then typically P2.7 will be low for three full clocks (3
62 ns), high for half a clock (31 ns) and then low again for half
a clock (31 ns) before repeating itself. Over every 65536 clocks
the PWM will compensate for the fact that the output should be
slightly above one quarter of full scale by leaving the output
high for two half clocks in four every so often.
4MHz
16-BIT
248 s
0
16-BIT
CARRY OUT AT P2.6
PWM0H/L = C000H
PWM1H/L = 4000H
00
1
00
0
LATCH
0
11
1
0
248 s
CARRY OUT AT P2.7
0, 3/4, 1/2, 1/4, 0
Figure 32. PWM Mode 6
相关PDF资料 |
PDF描述 |
|---|---|
| ADUC832BSZ-REEL | IC MCU 62K FLASH ADC/DAC 52MQFP |
| ADUC834BCPZ-REEL | IC MCU 62K FLASH ADC/DAC 56LFCSP |
| ADUC836BCPZ | IC MCU 62K FLASH ADC/DAC 56LFCSP |
| ADUC843BSZ62-5 | IC ADC 12BIT W/FLASH MCU 52-MQFP |
| ADUC845BCPZ62-5 | IC FLASH MCU W/24BIT ADC 56-CSP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ADUC831BCPZ-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 |
| ADUC831BS | 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:Analog Devices 功能描述:8BIT MCU +12BIT ADC LQFP52 831 |
| ADUC831BS-REEL | 制造商:Analog Devices 功能描述:MCU 8-bit ADuC8xx 8052 CISC 62KB Flash 3.3V/5V 52-Pin MQFP T/R |
| ADUC831BSZ | 功能描述:IC ADC/DAC 12BIT W/MCU 52-MQFP 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 |
| ADUC831BSZ-REEL | 功能描述:IC MCU 62K FLASH ADC/DAC 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: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 |
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