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| 型号： | ADUC832BCPZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 53/92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 |
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Data Sheet
ADuC832
Rev. B | Page 57 of 92
MODE 4: DUAL NRZ 16-BIT Σ-Δ DAC
Mode 4 provides a high speed PWM output similar to that of a
Σ-Δ DAC. Typically, this mode is used with the PWM clock
equal to 16.777216 MHz.
In this mode, P2.6 and P2.7 are updated every PWM clock
(60 ns in the case of 16 MHz). Over every 65,536 cycles (16-bit
PWM) PWM0 (P2.6) is high for PWM0H/PWM0L cycles and
low for (65,536 PWM0H/L) cycles. Similarly PWM1 (P2.7) is
high for PWM1H/PWM1L cycles and low for (65,536
PWM1H/PWM1L) cycles.
For example, if PWM1H/L was set to 4010H (slightly above one
quarter of FS), then typically P2.7 is low for three clocks and
high for one clock (each clock is approximately 60 ns). Over
every 65,536 clocks, the PWM compensates 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.
16.78MHz
16-BIT
60s
0
16-BIT
CARRY OUT AT P1.0
CARRY OUT AT P2.7
PWM0H/L = C000H
PWM1H/L = 4000H
0
1
0
LATCH
0
1
0
02987-
049
Figure 60. 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 four LSBs. This means
that a 12-bit accurate Σ-Δ DAC output can occur at 4.096 kHz.
Similarly, writing 0s to the eight LSBs gives an 8-bit accurate
Σ-Δ DAC output at 65 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
set the duty cycles of the PWM outputs at P2.6 and P2.7,
respectively. Both PWMs have same clock source and clock
divider.
P2.7
P2.6
PWM COUNTERS
PWM1H
0
PWM1L
PWM0H
PWM0L
02987-
050
Figure 61. PWM Mode 5
MODE 6: DUAL RZ 16-BIT Σ-Δ DAC
Mode 6 provides a high speed PWM output similar to that of a
Σ-Δ DAC. Mode 6 operates very similarly to Mode 4. However,
the key difference is that Mode 6 provides return-to-zero (RZ)
Σ-Δ DAC output. Mode 4 provides nonreturn-to-zero Σ-Δ DAC
outputs. The RZ mode ensures that any difference in the rise
and fall times does not affect the Σ-Δ DAC INL. However, the
RZ mode halves the dynamic range of the Σ-Δ DAC outputs
from 0 V AVDD down to 0 V AVDD/2. For best results, this
mode should be used with a PWM clock divider of four.
If PWM1H is set to 4010H (slightly above one quarter of FS)
then typically P2.7 is low for three full clocks (3 × 60 ns), high
for half a clock (30 ns), and then low again for half a clock
(30 ns) before repeating itself. Over every 65,536 clocks, the
PWM compensates for the fact that the output should be slightly
above one quarter of full scale by occasionally leaving the
output high for two half clocks in four.
4MHz
16-BIT
240 s
0
16-BIT
CARRY OUT AT P2.6
CARRY OUT AT P2.7
PWM0H/L = C000H
PWM1H/L = 4000H
0
1
0
LATCH
0
1
0
240 s
0, 3/4, 1/2, 1/4, 0
02987-
051
Figure 62. PWM Mode 6
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ADUC832BCPZ-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 |
| ADUC832BS | 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 16.78MHZ 3.3/5V 52MQFP - Bulk 制造商:Analog Devices 功能描述:8BIT MCU +12BIT ADC LQFP52 832 |
| ADUC832BS-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 |
| ADUC832BSZ | 功能描述:IC ADC/DAC 12BIT 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 |
| ADUC832BSZ-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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