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參數(shù)資料
| 型號： | AD9911/PCBZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 18/44頁 |
| 文件大?。?/td> | 0K |
| 描述： | BOARD EVAL FOR AD9911 |
| 產(chǎn)品培訓(xùn)模塊： | Direct Digital Synthesis Tutorial Series (1 of 7): Introduction Direct Digital Synthesizer Tutorial Series (7 of 7): DDS in Action Direct Digital Synthesis Tutorial Series (3 of 7): Angle to Amplitude Converter Direct Digital Synthesis Tutorial Series (6 of 7): SINC Envelope Correction Direct Digital Synthesis Tutorial Series (4 of 7): Digital-to-Analog Converter Direct Digital Synthesis Tutorial Series (2 of 7): The Accumulator |
| 設(shè)計資源： | AD9911 Eval Brd Schematics AD9911 Eval Brd BOM AD9911 Eval Brd Gerber Files |
| 標(biāo)準包裝： | 1 |
| 系列： | AgileRF™ |
| 主要目的： | 計時，直接數(shù)字合成（DDS） |
| 已用 IC / 零件： | AD9911 |
| 已供物品： | 板 |
| 相關(guān)產(chǎn)品： | AD9911BCPZ-REEL7-ND - IC DDS 500MSPS DAC 10BIT 56LFCSP AD9911BCPZ-ND - IC DDS 500MSPS DAC 10BIT 56LFCSP |
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AD9911
Rev. 0 | Page 25 of 44
sweep is then complete and the output held constant in
frequency. See Figure 43 for the linear sweep circuitry.
Figure 45 depicts a frequency sweep with no-dwell mode
disabled. In this mode, the output follows the state of the profile
pin. A phase or amplitude sweep works in the same manner
with fewer bits.
LINEAR SWEEP NO DWELL MODE
To enable linear sweep no dwell mode, set CFR <15>. The rising
sweep is started by setting the profile input pin to 1. The
frequency, phase or amplitude continues to sweep up at the rate
set by the rising sweep ramp rate and the resolution set by the
rising delta tuning word, until it reaches E0. The output then
reverts to the S0 and stalls until high is detected on the
profile pin.
Figure 44 demonstrates the no-dwell mode. The points labeled
A indicate where a rising edge is detected on the profile pin.
Points labeled B indicate at which points where the AD9911 has
determined that the output has reached E0 and reverts to S0.
The falling ramp rate register and the falling delta word are
unused in this mode.
RATE TIME
LOAD CONTROL
LOGIC
LIMIT LOGIC TO
KEEP SWEEP BETWEEN
S0 AND E0
RAMP RATE TIMER:
8-BIT LOADABLE DOWN COUNTER
ACCUMULATOR RESET
LOGIC
0
1
MUX
0
1
MUX
0
1
MUX
PROFILE PIN
0
1
8
MUX
0
1
MUX
FDW
RDW
FSRR
RSRR
0
N
PROFILE PIN
Z–1
CTW1
SWEEP ACCUMULATOR
SWEEP ADDER
CTW0
05
78
5-
0
41
Figure 43. Linear Sweep Block Circuitry
FTW0
SINGLE–TONE
MODE
FTW1
AA
A
B
BB
fOUT
TIME
PS<1> = 1 PS<1> = 0
PS<1> = 0
PS<1> = 1
PS<1> = 0
05
78
5-
04
2
Figure 44. Linear Sweep Mode Enabled—No Dwell Bit Set
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD9912 | 制造商:AD 制造商全稱:Analog Devices 功能描述:1 GSPS Direct Digital Synthesizer w/ 14-bit DAC |
| AD9912/PCBZ | 制造商:Analog Devices 功能描述:Evaluation Kit For 1 GSPS Direct Digital Synthesizer W/ 14-Bit DAC 制造商:Analog Devices 功能描述:EVAL KIT FOR 1 GSPS DIRECT DGTL SYNTHESIZER W/ 14BIT DAC - Bulk 制造商:Analog Devices 功能描述:EVALUATION BOARD AD9912 1GSPS DDS |
| AD9912A/PCBZ | 功能描述:BOARD EVALUATION FOR AD9912 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估演示板和套件 系列:- 標(biāo)準包裝:1 系列:PCI Express® (PCIe) 主要目的:接口，收發(fā)器，PCI Express 嵌入式:- 已用 IC / 零件:DS80PCI800 主要屬性:- 次要屬性:- 已供物品:板 |
| AD9912ABCPZ | 功能描述:IC DDS 1GSPS DAC 14BIT 64LFCSP RoHS:是 類別:集成電路 (IC) >> 接口 - 直接數(shù)字合成 (DDS) 系列:- 產(chǎn)品變化通告:Product Discontinuance 27/Oct/2011 標(biāo)準包裝:2,500 系列:- 分辨率（位）:10 b 主 fclk:25MHz 調(diào)節(jié)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(yīng)商設(shè)備封裝:16-TSSOP 包裝:帶卷 (TR) |
| AD9912ABCPZ-REEL7 | 功能描述:IC DDS 1GSPS DAC 14BIT 64LFCSP RoHS:是 類別:集成電路 (IC) >> 接口 - 直接數(shù)字合成 (DDS) 系列:- 產(chǎn)品變化通告:Product Discontinuance 27/Oct/2011 標(biāo)準包裝:2,500 系列:- 分辨率（位）:10 b 主 fclk:25MHz 調(diào)節(jié)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(yīng)商設(shè)備封裝:16-TSSOP 包裝:帶卷 (TR) |
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