- 您現在的位置：買賣IC網 > PDF目錄374039 > ADUC842BCP8-3 (ANALOG DEVICES INC) MicroConverter 12-Bit ADCs and DACs with Embedded High Speed 62-kB Flash MCU PDF資料下載
參數資料
| 型號： | ADUC842BCP8-3 |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | MicroConverter 12-Bit ADCs and DACs with Embedded High Speed 62-kB Flash MCU |
| 中文描述： | 8-BIT, FLASH, 8.38 MHz, MICROCONTROLLER, QCC56 |
| 封裝： | 8 X 8 MM, LEAD FRAME, MO-220VLLD2, CSP-56 |
| 文件頁數： | 44/88頁 |
| 文件大小： | 903K |
| 代理商： | ADUC842BCP8-3 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁當前第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁
ADuC841/ADuC842/ADuC843
Mode 4: Dual NRZ 16-Bit ∑- DAC
Mode 4 provides a high speed PWM output similar to that of a
∑
- 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
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.
Rev. 0 | Page 44 of 88
For example, if PWM1H is 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 60 ns). Over
every 65536 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.
16.777MHz
16-BIT
60
μ
s
0
16-BIT
16-BIT
16-BIT
16-BIT
16-BIT
CARRY OUT AT P1.0
CARRY OUT AT P2.7
PWM0H/L = C000H
PWM1H/L = 4000H
0
0
1
0
0
0
LATCH
0
1
1
1
1
1
0
0
60
μ
s
Figure 51. 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 perform-
ance is required, write 0s to the four LSBs. This means that a 12-bit
accurate
∑
- DAC output can occur at 4.096 kHz. Similarly
writing 0s to the 8 LSBs gives an 8-bit accurate
∑
- 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 8 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, respectively.
Both PWMs have the same clock source and clock divider.
P2.7
P2.6
PWM COUNTERS
PWM1H
0
PWM1L
PWM0H
PWM0L
0
Figure 52. 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 affect the
∑
- DAC INL. However,
the RZ mode halves the dynamic range of the
∑
- DAC outputs
from 0 V–AV
DD
down to 0 V–AV
DD
/2. For best results, this mode
should be used with a PWM clock divider of 4.
If PWM1H is set to 4010H (slightly above one quarter of FS),
typically P2.7 will be 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 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. The rate at which this happens
depends on the value and degree of compensation required.
4MHz
16-BIT
240
μ
s
0
16-BIT
16-BIT
16-BIT
16-BIT
16-BIT
CARRY OUT AT P2.6
CARRY OUT AT P2.7
PWM0H/L = C000H
PWM1H/L = 4000H
0
0
1
0
0
0
LATCH
0
1
1
1
1
1
0
240
μ
s
0, 3/4, 1/2, 1/4, 0
0
Figure 53. PWM Mode 6
相關PDF資料 |
PDF描述 |
|---|---|
| ADUC843BCP8-3 | MicroConverter 12-Bit ADCs and DACs with Embedded High Speed 62-kB Flash MCU |
| ADUC842BCP8-5 | MicroConverter 12-Bit ADCs and DACs with Embedded High Speed 62-kB Flash MCU |
| ADUC843BCP8-5 | MicroConverter 12-Bit ADCs and DACs with Embedded High Speed 62-kB Flash MCU |
| ADUC841 | MicroConverter 12-Bit ADCs and DACs with Embedded High Speed 62-kB Flash MCU |
| ADUC841BCP62-3 | MicroConverter 12-Bit ADCs and DACs with Embedded High Speed 62-kB Flash MCU |
相關代理商/技術參數 |
參數描述 |
|---|---|
| ADUC842BCP8-5 | 制造商:Analog Devices 功能描述:MCU 8-Bit ADuC8xx 8052 CISC 62KB Flash 5V 56-Pin LFCSP EP |
| ADUC842BCPZ32-3 | 功能描述:IC MCU 32K FLASH ADC/DAC 56LFCSP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:MicroConverter® ADuC8xx 標準包裝:38 系列:Encore!® XP® 核心處理器:eZ8 芯體尺寸:8-位 速度:5MHz 連通性:IrDA，UART/USART 外圍設備:欠壓檢測/復位，LED，POR，PWM，WDT 輸入/輸出數:16 程序存儲器容量:4KB（4K x 8） 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:1K x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 3.6 V 數據轉換器:- 振蕩器型:內部 工作溫度:-40°C ~ 105°C 封裝/外殼:20-SOIC（0.295"，7.50mm 寬） 包裝:管件 其它名稱:269-4116Z8F0413SH005EG-ND |
| ADUC842BCPZ32-5 | 功能描述:IC MCU 32K FLASH ADC/DAC 56LFCSP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:MicroConverter® ADuC8xx 標準包裝:38 系列:Encore!® XP® 核心處理器:eZ8 芯體尺寸:8-位 速度:5MHz 連通性:IrDA，UART/USART 外圍設備:欠壓檢測/復位，LED，POR，PWM，WDT 輸入/輸出數:16 程序存儲器容量:4KB（4K x 8） 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:1K x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 3.6 V 數據轉換器:- 振蕩器型:內部 工作溫度:-40°C ~ 105°C 封裝/外殼:20-SOIC（0.295"，7.50mm 寬） 包裝:管件 其它名稱:269-4116Z8F0413SH005EG-ND |
| ADUC842BCPZ62-3 | 功能描述:IC ADC/DAC 12BIT W/MCU 56-LFCSP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:MicroConverter® ADuC8xx 標準包裝:38 系列:Encore!® XP® 核心處理器:eZ8 芯體尺寸:8-位 速度:5MHz 連通性:IrDA，UART/USART 外圍設備:欠壓檢測/復位，LED，POR，PWM，WDT 輸入/輸出數:16 程序存儲器容量:4KB（4K x 8） 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:1K x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 3.6 V 數據轉換器:- 振蕩器型:內部 工作溫度:-40°C ~ 105°C 封裝/外殼:20-SOIC（0.295"，7.50mm 寬） 包裝:管件 其它名稱:269-4116Z8F0413SH005EG-ND |
| ADUC842BCPZ62-5 | 功能描述:IC MCU 62K FLASH ADC/DAC 56LFCSP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:MicroConverter® ADuC8xx 標準包裝:38 系列:Encore!® XP® 核心處理器:eZ8 芯體尺寸:8-位 速度:5MHz 連通性:IrDA，UART/USART 外圍設備:欠壓檢測/復位，LED，POR，PWM，WDT 輸入/輸出數:16 程序存儲器容量:4KB（4K x 8） 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:1K x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 3.6 V 數據轉換器:- 振蕩器型:內部 工作溫度:-40°C ~ 105°C 封裝/外殼:20-SOIC（0.295"，7.50mm 寬） 包裝:管件 其它名稱:269-4116Z8F0413SH005EG-ND |
發布緊急采購，3分鐘左右您將得到回復。