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參數(shù)資料
| 型號： | AD7808BRZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 16/28頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DAC 10BIT OCTAL SRL 24-SOIC |
| 產(chǎn)品培訓(xùn)模塊： | Data Converter Fundamentals DAC Architectures |
| 標(biāo)準(zhǔn)包裝： | 31 |
| 設(shè)置時間： | 1.5µs |
| 位數(shù)： | 10 |
| 數(shù)據(jù)接口： | 串行 |
| 轉(zhuǎn)換器數(shù)目： | 4 |
| 電壓電源： | 模擬和數(shù)字 |
| 功率耗散（最大）： | 99mW |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 24-SOIC（0.295"，7.50mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 24-SOIC W |
| 包裝： | 管件 |
| 輸出數(shù)目和類型： | 8 電壓，雙極 |
| 采樣率（每秒）： | 667k |
| 產(chǎn)品目錄頁面： | 785 (CN2011-ZH PDF) |
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AD7804/AD7805/AD7808/AD7809
–23–
REV. A
AD7805/AD7809–ADSP-2101 Interface
Figure 38 shows a parallel interface between the AD7805/AD7809
and the ADSP-2101/ADSP-2103 digital signal processor.
Fast interface timing allows the AD7805/AD7809 interface
directly to the DSP. In this interface an external timer is used to
update the DACs.
DATA BUS
A0
A1
CS
LDAC
WR
DMD0
DMD15
ADSP-2101*/
ADSP-2103*
TIMER
MODE
ADDR
DECODE
ADDRESS BUS
DMA0
DMA14
DMS
EN
WR
DB0
DB9
**ADDITIONAL PINS OMITTED FOR CLARITY
**A2 CONTAINED ON THE AD7809 ONLY
AD7805*/
AD7809
A2**
Figure 38. AD7805/AD7809–ADSP-2101/ADSP-2103
Interface
Data is loaded to the AD7805/AD7809 input register using the
following instruction:
DM(DAC) = MR0,
MR0 = ADSP-2101 MR0 Register.
DAC = Decoded DAC Address.
AD7805/AD7809–TMS32020 Interface
Figure 39 shows a parallel interface between the AD7805/AD7809
and the TMS32020 processor.
ADDR
DECODE
DATA BUS
ADDRESS BUS
A0 A1
CS
DB0
DB9
LDAC
A0
A15
IS
EN
D0
D15
TMS32020
WR
STRB
R/
W
**ADDITIONAL PINS OMITTED FOR CLARITY
**A2 CONTAINED ON THE AD7809 ONLY
AD7805*/
AD7809
A2**
Figure 39. AD7805/AD7809–TMS32020 Interface
Again fast interface timing allows the AD7805/AD7809 inter-
face directly to the processor. Data is loaded to the AD7805/
AD7809 input latch using the following instruction:
OUT DAC, D.
DAC = Decoded DAC Address.
D = Data Memory Address.
Certain applications may require that the updating of the DAC
latch be controlled by the microprocessor rather than the exter-
nal timer. One option as shown in the TMS32020 interface is to
decode the
LDAC from the address bus so that a write opera-
tion to the DAC latch (at a separate address to the input latch)
updates the output.
AD7805/AD7809–8051/8088 Interface
Figure 40 shows a parallel interface between the AD7805/
AD7809 and the 8051/8088 processors.
ADDRESS/DATA BUS
OCTAL
LATCH
MODE
WR
ALE
8051/8088
**ADDITIONAL PINS OMITTED FOR CLARITY
**A2 CONTAINED ON THE AD7809 ONLY
ADDR
DECODE
ADDRESS BUS
A0
A1
CS
AD7805*/
AD7809
A8
A15
PSEN OR DEN
EN
LDAC
WR
AD7
AD0
A2**
DB0
DB9
Figure 40. AD7805/AD7809–8051/8088 Interface
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| AD7808BRZ-REEL | 功能描述:IC DAC 10BIT OCTAL SRL 24-SOIC RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 產(chǎn)品培訓(xùn)模塊:Data Converter Fundamentals DAC Architectures 標(biāo)準(zhǔn)包裝:750 系列:- 設(shè)置時間:7µs 位數(shù):16 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 電壓電源:雙 ± 功率耗散（最大）:100mW 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-LCC（J 形引線） 供應(yīng)商設(shè)備封裝:28-PLCC（11.51x11.51） 包裝:帶卷 (TR) 輸出數(shù)目和類型:1 電壓，單極；1 電壓，雙極 采樣率（每秒）:143k |
| AD7808BST | 制造商:AD 制造商全稱:Analog Devices 功能描述:+3.3 V to +5 V Quad/Octal 10-Bit DACs(300.12 k) |
| AD7809 | 制造商:AD 制造商全稱:Analog Devices 功能描述:+3.3 V to +5 V Quad/Octal 10-Bit DACs |
| AD7809BST | 制造商:Analog Devices 功能描述:DAC 8-CH 10-bit 44-Pin TQFP 制造商:Rochester Electronics LLC 功能描述:OCTAL 10-BIT PARALLEL DAC I.C. - Bulk 制造商:Analog Devices 功能描述:IC 10-BIT DAC |
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