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參數(shù)資料
| 型號： | AD9854 |
| 廠商： | Analog Devices, Inc. |
| 元件分類： | XO, clock |
| 英文描述： | CMOS 300MHz Quadrature Complete-DDS |
| 中文描述： | 300MHz CMOS正交DDS數(shù)字合成器 |
| 文件頁數(shù)： | 20/28頁 |
| 文件大小： | 589K |
| 代理商： | AD9854 |
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AD9854 PRELIMINARY TECHNICAL DATA
_____________________________________________________________________________________________________
7/16/99 REV.PRA
20
Parallel IO Operation
With the SPSELECT pin tied high, the parallel IO
mode is active. The IO port is compatible with industry
standard DSPs and micro-Controllers. Six address bits,
8 bi-directional data bits and separate write/read
control inputs make up the IO port pins (Figure
above).
Parallel IO operation allows write access to each byte
of any register in a single IO operation at 100Mhz
.
Read back capability for each register is included to
ease designing with the AD9854/52. Reads are not
guaranteed at 100Mhz as they are intended for
software debug only.
Parallel IO operation timing diagrams and are shown in
the figures below.
February 22, 1999
AD9854/52 Parallel Port Write Timing Diagram
D<7:0>
A<5:0>
A
1
A
2
A
3
D
1
D
2
D
3
____
WR
T
ASU
T
AHD
T
DHD
T
DSU
T
WRLOW
Specification Value Description
T
ASU
~3ns Address Setup Time To WR Singal Active
T
DSU
~3ns Data Setup Time To WR Signal Inactive
T
ADH
~3ns Address Hold Time To WR Signal Inactive
T
DHD
~3ns Data Hold Time To WR Signal Inactive
T
WRLOW
~5ns WR Signal Minimum Low Time
T
WRHIGH
T
ASU
+ T
AHD
WR Signal Minimum High Time
T
WR
T
WRLOW
+ T
WRHIGH
WR Signal Minimum Period
T
WR
T
WRHIGH
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD9854/PCB | 制造商:Analog Devices 功能描述:Evaluation Board For IC Digital Synthesizer Single 制造商:Analog Devices 功能描述:Direct Digital Synthesizer IC (DDS) |
| AD9854/PCBZ | 功能描述:BOARD EVAL FOR AD9854 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估演示板和套件 系列:AgileRF™ 標準包裝: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 |
| AD9854ASQ | 制造商:Analog Devices 功能描述:IC DDS SYNTHESIZER |
| AD9854ASQZ | 制造商:Analog Devices 功能描述:Direct Digital Synthesizer 300MHz 2-DAC 12-Bit Parallel/Serial 80-Pin LQFP 制造商:Analog Devices 功能描述:Communication IC |
| AD9854AST | 制造商:Analog Devices 功能描述:Direct Digital Synthesizer 300MHz 2-DAC 12-Bit Parallel/Serial 80-Pin LQFP Tray 制造商:Rochester Electronics LLC 功能描述:200 MHZ QUADRATURE DDS SYNTHESIZER - Tape and Reel 制造商:Analog Devices 功能描述:IC SEMICONDUCTOR ((NS)) |
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