- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄375268 > ADUC834 (Analog Devices, Inc.) MicroConverter, Dual 16-/24- Bit ADCs with Embedded 62KB FLASH MCU PDF資料下載
參數(shù)資料
| 型號： | ADUC834 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | MicroConverter, Dual 16-/24- Bit ADCs with Embedded 62KB FLASH MCU |
| 中文描述： | MicroConverter的，雙與嵌入62KB閃存MCU 16-/24-位ADC |
| 文件頁數(shù)： | 45/72頁 |
| 文件大?。?/td> | 1451K |
| 代理商： | ADUC834 |
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頁第44頁當前第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
REV.
P
rC (12 March 2002)
ADuC834
–
45
–
PRELIMINARY TECHNICAL DATA
MODE 4: Dual NRZ 16-bit
Σ
DAC
Mode 4 provides a high speed PWM output similar to that of a
Σ
DAC. T ypically this mode will be used with the 12.58MHz
clock.
In this mode P1.0 and P1.1 are updated every PWM clock
(80ns in the case of 12.58MHz). Over any 65536 cycles (16 bit
PWM) PWM0 (P1.0) is high for PWM0H/L cycles and low for
65536 - PWM0H/L. Similarly PWM1 (P1.1) is high for
PWM1H/L cycles during this same time.
For lower resolution, higher speed DAC outputs write 0
’
s to
the LSBs that are not required. If for example only 12 bit per-
formance is required then write 0
’
s to the 4LSBs. T his means
that 12 bit accuracy in the PWM output can occur at 3kHz.
Similary writing 0
’
s to the 8LSBs gives 8 bit accuracy at 49kHz.
e.g. if PWM0H was set to 4010H (slightly above one quater of
FS) then typically P1.0 will be low for three clocks and high for
one clock (each clock is 80ns appox). Over every 65536 clocks
the PWM will compromise for the fact that the output should
be slightly above one quater of fullscale by leaving the output
high for two clocks in four every so often.
+
LATCH
PWM0H/L
12.583MHz
16 BIT
0, ,
‰
,
…
, 0
80us
0
0
1
1
1
1
1
80us
0
1
0
0
0
0
0
16 BIT
16 BIT
16 BIT
16 BIT
16 BIT
0, ,
‰
,
…
, 0
CARRY OUT AT P1.0
CARRY OUT AT P1.1
…
PWM1H/L
Figure 39. PWM Mode 4
MODE 5: Dual 8-bit PWM
In this mode both the pulse and cycle time (period) are inde-
pendently programmable by using the high and low bytes of the
PWM counters independently. T he output resolution and
period are set by the PWM1L and PWM1H registers for the
P1.0 and P1.1 outputs respectively. PWM0L and PWM0H will
set the width of the high pulse for the P1.0 and P1.1 outputs
respectively. Both channels have same clock source and clock
divider.
P1.1
P1.0
PWM COUNTERS
PWM1H
0
PWM1L
PWM0H
PWM0L
Figure 40. PWM Mode 5
MODE 6: Dual RZ 16-bit
Σ
DAC
Mode 6 provides the exact same functionality as mode 4
except that in this mode the PWM output is ANDed with
the PWM clock. i.e. every output 1 is only high for half a
clock and low for the other half clock. T his return to zero
(RZ) mode reduces any errors due to mismatch between rise
time and fall time of the PWM outputs and is recommended
over mode 4 for accurate PWM outputs.
T he disadvantage of this mode is that the dynamic range of
the PWM output is halved from 0->DV
DD
to 0->DV
DD
/2.
e.g. if PWM0H was set to 4010H (slightly above one quater
of FS) then typically P1.0 will be low for three full clocks (3
x 80ns), high for half a clock (40ns) and then low again for
half a clock (40ns) before repeating itself. Over every 65536
clocks the PWM will compromise for the fact that the out-
put should be slightly above one quater of fullscale by
leaving the output high for two half clocks in four every so
often.
+
LATCH
PWM0H/L
12.583MHz
16 BIT
0, ,
‰
,
…
, 0
80us
0
0
1
1
1
1
1
80us
0
1
0
0
0
0
0
16 BIT
16 BIT
16 BIT
16 BIT
16 BIT
0, ,
‰
,
…
, 0
CARRY OUT AT P1.0
CARRY OUT AT P1.1
…
PWM1H/L
Figure 41. PWM Mode 6
相關PDF資料 |
PDF描述 |
|---|---|
| ADUC834BS | MicroConverter, Dual 16-/24- Bit ADCs with Embedded 62KB FLASH MCU |
| ADUM1310BRWZ | Triple-Channel Digital Isolator with Programmable Default Output |
| ADUM1310BRWZ-RL | Triple-Channel Digital Isolator with Programmable Default Output |
| ADUM3300 | Triple-Channel, Digital Isolators, Enhanced System-Level ESD Reliability |
| ADUM3300ARWZ | Triple-Channel, Digital Isolators, Enhanced System-Level ESD Reliability |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| ADUC834_02 | 制造商:AD 制造商全稱:Analog Devices 功能描述:MicroConverter, Dual 16-Bit/24-Bit ADCs with Embedded 62 kB Flash MCU |
| ADUC834BCP | 制造商:Rochester Electronics LLC 功能描述:8BIT CISC 62KB FLASH 12.58MHZ 3.3/5V 56LFCSP - Bulk 制造商:Analog Devices 功能描述: |
| ADUC834BCPZ | 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:250 系列:LPC11Uxx 核心處理器:ARM? Cortex?-M0 芯體尺寸:32-位 速度:50MHz 連通性:I²C，Microwire，SPI，SSI，SSP，UART/USART，USB 外圍設備:欠壓檢測/復位，POR，WDT 輸入/輸出數(shù):40 程序存儲器容量:96KB（96K x 8） 程序存儲器類型:閃存 EEPROM 大小:4K x 8 RAM 容量:10K x 8 電壓 - 電源 (Vcc/Vdd):1.8 V ~ 3.6 V 數(shù)據(jù)轉換器:A/D 8x10b 振蕩器型:內部 工作溫度:-40°C ~ 85°C 封裝/外殼:48-LQFP 包裝:托盤 其它名稱:568-9587 |
| ADUC834BCPZ-REEL | 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(shù):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(shù)據(jù)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 |
| 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 |
發(fā)布緊急采購，3分鐘左右您將得到回復。