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參數(shù)資料
型號(hào): ADUC845BCP8-3
廠商: ANALOG DEVICES INC
元件分類: 微控制器/微處理器
英文描述: MicroConverter Multichannel 24-/16-Bit ADCs with Embedded 62 kB Flash and Single-Cycle MCU
中文描述: 8-BIT, FLASH, 12.58 MHz, MICROCONTROLLER, QCC56
封裝: 8 X 8 MM, MO-220-VLLD-2, LFCSP-56
文件頁數(shù): 59/108頁
文件大小: 1109K
代理商: ADUC845BCP8-3
ADuC845/ADuC847/ADuC848
Mode 5 (Dual 8-Bit PWM)
In Mode 5, the duty cycle and the resolution of the PWM outputs
are individually programmable. The maximum resolution of the
PWM output is 8 bits.
Rev. A | Page 59 of 108
P2.6
P2.5
PWM COUNTERS
PWM1H
0
PWM1L
PWM0H
PWM0L
0
Figure 43. PWM Mode 5
Mode 6 (Dual RZ 16-Bit Σ-
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 non-return-to-zero Σ-Δ
DAC outputs. RZ mode ensures that any difference in the rise
and fall times does not affect the Σ-Δ DAC INL. However, RZ
mode halves the dynamic range of the Σ-Δ DAC outputs from 0
V to AV
DD
down to 0 V to 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 P2.6 is low for three full clocks (3 × 80 ns), high for
one-half a clock (40 ns), and then low again for one-half a clock
(40 ns) before repeating itself. Over every 65536 clocks, the
PWM compromises 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.
For faster DAC outputs (at lower resolution), write 0s to the
LSBs that are not required with a 1 in the LSB position. If, for
example, only 12-bit performance is required, write 0001 to the
4 LSBs. This means that a 12-bit accurate Σ-Δ DAC output can
occur at 3 kHz. Similarly, writing 00000001 to the 8 LSBs gives
an 8-bit accurate Σ-Δ DAC output at 49 kHz.
The output resolution is set by the PWM1L and PWM1H SFRs
for the P2.5 and P2.6 outputs, respectively. PWM0L and PWM0H
set the duty cycles of the PWM outputs at P2.5 and P2.6,
respectively. Both PWMs have the same clock source and clock
divider.
3.146MHz
16-BIT
318
μ
s
0
16-BIT
16-BIT
16-BIT
16-BIT
16-BIT
CARRY OUT AT P2.5
CARRY OUT AT P2.6
PWM0H/L = C000H
PWM1H/L = 4000H
0
1
0
0
0
0
LATCH
0
1
1
1
1
1
0
318
μ
s
0, 3/4, 1/2, 1/4, 0
0
Figure 44. PWM Mode 6
Mode 7
In Mode 7, the PWM is disabled, allowing P2.5 and P2.6 to be
used as normal.
相關(guān)PDF資料
PDF描述
ADUC847BCP8-3 MicroConverter Multichannel 24-/16-Bit ADCs with Embedded 62 kB Flash and Single-Cycle MCU
ADUC845BCP8-5 MicroConverter Multichannel 24-/16-Bit ADCs with Embedded 62 kB Flash and Single-Cycle MCU
ADUC847BCP8-5 MicroConverter Multichannel 24-/16-Bit ADCs with Embedded 62 kB Flash and Single-Cycle MCU
ADUC845BCP62-3 MicroConverter Multichannel 24-/16-Bit ADCs with Embedded 62 kB Flash and Single-Cycle MCU
ADUC845BCP62-5 MicroConverter Multichannel 24-/16-Bit ADCs with Embedded 62 kB Flash and Single-Cycle MCU
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADUC845BCP8-5 制造商:Analog Devices 功能描述:10 CHANNEL 24 BIT DUAL ADC + FAST 8BIT UP - Trays
ADUC845BCPZ62-3 功能描述:IC MCU FLASH W/24BIT ADC 56LFCSP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:MicroConverter® ADuC8xx 標(biāo)準(zhǔn)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(shè)備:欠壓檢測(cè)/復(fù)位,LED,POR,PWM,WDT 輸入/輸出數(shù):16 程序存儲(chǔ)器容量:4KB(4K x 8) 程序存儲(chǔ)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(shù)據(jù)轉(zhuǎn)換器:- 振蕩器型:內(nèi)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
ADUC845BCPZ62-5 功能描述:IC FLASH MCU W/24BIT ADC 56-CSP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:MicroConverter® ADuC8xx 標(biāo)準(zhǔn)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(shè)備:欠壓檢測(cè)/復(fù)位,LED,POR,PWM,WDT 輸入/輸出數(shù):16 程序存儲(chǔ)器容量:4KB(4K x 8) 程序存儲(chǔ)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(shù)據(jù)轉(zhuǎn)換器:- 振蕩器型:內(nèi)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
ADUC845BCPZ8-3 功能描述:IC MCU FLASH 24BIT ADC 56LFCSP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:MicroConverter® ADuC8xx 標(biāo)準(zhǔn)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(shè)備:欠壓檢測(cè)/復(fù)位,LED,POR,PWM,WDT 輸入/輸出數(shù):16 程序存儲(chǔ)器容量:4KB(4K x 8) 程序存儲(chǔ)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(shù)據(jù)轉(zhuǎn)換器:- 振蕩器型:內(nèi)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
ADUC845BCPZ8-5 功能描述:IC MCU FLASH 24BIT ADC 56LFCSP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:MicroConverter® ADuC8xx 標(biāo)準(zhǔn)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(shè)備:欠壓檢測(cè)/復(fù)位,LED,POR,PWM,WDT 輸入/輸出數(shù):16 程序存儲(chǔ)器容量:4KB(4K x 8) 程序存儲(chǔ)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(shù)據(jù)轉(zhuǎn)換器:- 振蕩器型:內(nèi)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
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