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參數資料
型號: AD9910
廠商: Analog Devices, Inc.
元件分類: XO, clock
英文描述: 1 GSPS, 14-Bit, 3.3 V CMOS Direct Digital Synthesizer
中文描述: 1 GSPS的,14位,3.3伏的CMOS直接數字頻率合成
文件頁數: 21/60頁
文件大小: 764K
代理商: AD9910
AD9910
MODE PRIORITY
The three different modulation modes generate frequency,
phase, and/or amplitude data destined for the DDS signal
control parameters. In addition, the OSK function generates
amplitude data destined for the DDS. Each of these functions is
independently invoked using the appropriate control bit via the
serial I/O port.
Rev. 0 | Page 21 of 60
The ability to independently activate each of these functions
makes it possible to have multiple data sources attempting to
drive the same DDS signal control parameter. To avoid con-
tention, the AD9910 has a built-in priority system. Table 5
summarizes the priority for each of the DDS signal control
parameters. The rows of the table list data sources for a particular
DDS signal control parameter in descending order of precedence.
For example, if both the RAM and the parallel port are enabled
and both are programmed for frequency as the destination,
then the DDS frequency parameter is driven by the RAM and
not the parallel data port.
Table 5. Data Source Priority
DDS Signal Control Parameters
Phase
Data Source
RAM
Frequency
Conditions
RAM enabled and
data destination is
frequency
DRG enabled and
data destination is
frequency
Parallel data port
enabled and data
destination is
frequency
RAM enabled and
data destination is
phase, amplitude
or polar
DRG enabled and
data destination is
phase or amplitude
Amplitude
Priority
Highest
Priority
Data Source
RAM
Conditions
RAM enabled and
data destination is
phase or polar
DRG enabled and
data destination is
phase
Parallel data port
enabled and data
destination is
phase
Parallel data port
enabled and data
destination is polar
Data Source
OSK generator
Conditions
OSK enabled (auto
mode)
DRG
DRG
ASF register
OSK enabled
(manual mode)
Parallel data
port + FTW
register
Parallel data port
RAM
RAM enabled and
data destination is
amplitude or polar
FTW register
Parallel data port
concatenated with
the POW register
LSBs
POW register
DRG
DRG enabled and
data destination is
amplitude
FTW in active
single tone
profile register
RAM enabled and
destination is
frequency or
amplitude
DRG enabled and
data destination is
frequency or
amplitude
Parallel data port
Parallel data port
enabled and data
destination is
amplitude
Parallel data port
enabled and data
destination is
polar
FTW in active
single tone
profile register
Parallel data port
enabled and data
destination is
phase, amplitude
or polar
None
POW in active
single tone profile
register
Parallel data port
concatenated with
the ASF register
LSBs
FTW in active
single tone
profile register
POW in active
single tone profile
register
Parallel data port
enabled and data
destination is
frequency or
amplitude
None
ASF in active single
tone profile
register
Enable amplitude
scale from Single
Tone Profiles Bit
CFR2<24> set
Lowest
Priority
POW in active
single tone profile
register
No amplitude
scaling
None
相關PDF資料
PDF描述
AD9910_07 1 GSPS, 14-Bit, 3.3 V CMOS Direct Digital Synthesizer
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相關代理商/技術參數
參數描述
AD9910/PCBZ 功能描述:數據轉換 IC 開發工具 1GSPS 14 bit DDS w/ parallel input port RoHS:否 制造商:Texas Instruments 產品:Demonstration Kits 類型:ADC 工具用于評估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V
AD9910_07 制造商:AD 制造商全稱:Analog Devices 功能描述:1 GSPS, 14-Bit, 3.3 V CMOS Direct Digital Synthesizer
AD9910BSVZ 功能描述:IC DDS 1GSPS 14BIT PAR 100TQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 直接數字合成 (DDS) 系列:- 產品變化通告:Product Discontinuance 27/Oct/2011 標準包裝:2,500 系列:- 分辨率(位):10 b 主 fclk:25MHz 調節字寬(位):32 b 電源電壓:2.97 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-TSSOP(0.173",4.40mm 寬) 供應商設備封裝:16-TSSOP 包裝:帶卷 (TR)
AD9910BSVZ 制造商:Analog Devices 功能描述:IC DDS 1GHZ TQFP-100 制造商:Analog Devices 功能描述:IC, DDS, 1GHZ, TQFP-100
AD9910BSVZ-REEL 功能描述:IC DDS 1GSPS 14BIT PAR 100TQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 直接數字合成 (DDS) 系列:- 產品變化通告:Product Discontinuance 27/Oct/2011 標準包裝:2,500 系列:- 分辨率(位):10 b 主 fclk:25MHz 調節字寬(位):32 b 電源電壓:2.97 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-TSSOP(0.173",4.40mm 寬) 供應商設備封裝:16-TSSOP 包裝:帶卷 (TR)