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參數資料
| 型號： | AD9858FDPCB |
| 廠商： | Analog Devices, Inc. |
| 元件分類： | XO, clock |
| 英文描述： | 1 GSPS Direct Digital Synthesizer |
| 中文描述： | 1 GSPS的直接數字頻率合成器 |
| 文件頁數： | 1/32頁 |
| 文件大小： | 1412K |
| 代理商： | AD9858FDPCB |
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1 GSPS
Direct Digital Synthesizer
AD9858
FEATURES
1 GSPS internal clock speed
Up to 2 GHz input clock (selectable divide-by-2)
Integrated 10-bit D/A converter
Phase noise < 145 dBc/Hz @ 1 kHz offset
Output frequency = 100 MHz (DAC output)
32-bit programmable frequency register
Simplified 8-bit parallel and SPI serial control interface
Automatic frequency sweeping capability
4 frequency profiles
3.3 V power supply
Power dissipation 2 W typical
Integrated programmable charge pump and phase
frequency detector with fast lock circuit
Isolated charge pump supply up to 5 V
Integrated 2 GHz mixer
APPLICATIONS
VHF/UHF LO synthesis
Tuners
Instrumentation
Agile clock synthesis
Cellular base station hopping synthesizer
Radar
Sonet/SDH clock synthesis
Rev.
A
Information furnished by Analog Devices is believed to be accurate and reliable.
However, no responsibility is assumed by Analog Devices for its use, nor for any
infringements of patents or other rights of third parties that may result from its use.
Specifications subject to change without notice. No license is granted by implication
or otherwise under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective owners.
Tel: 781.329.4700Fax: 781.326.8703
www.analog.com GENERAL DESCRIPTION
The AD9858 is a direct digital synthesizer (DDS) featuring a
10-bit DAC operating up to 1GSPS. The AD9858 uses advanced
DDS technology, coupled with an internal high speed, high
performance D/A converter to form a digitally programmable,
complete high frequency synthesizer capable of generating a
frequency-agile analog output sine wave at up to 400+ MHz.
The AD9858 is designed to provide fast frequency hopping and
fine tuning resolution (32-bit frequency tuning word). The
frequency tuning and control words are loaded into the AD9858
via parallel (8-bit) or serial loading formats. The AD9858
contains an integrated charge pump (CP) and phase frequency
detector (PFD) for synthesis applications requiring the
combination of a high speed DDS along with phase-locked loop
(PLL) functions. An analog mixer is also provided on-chip for
applications requiring the combination of a DDS, PLL, and
mixer, such as frequency translation loops, tuners, and so on.
The AD9858 also features a divide-by-2 on the clock input,
allowing the external clock to be as high as 2 GHz.
The AD9858 is specified to operate over the extended industrial
temperature range of –40°C to +85°C.
FUNCTIONAL BLOCK DIAGRAM
ANALOG
ACCPHASE
DIV
LO
IF
RF
PD
CP
CPISET
RESET
DACISET
I
OUT
I
OUT
FUD
SYNCLK
REFCLK
REFCLK
SELECT
(I/O PORT
DIGITAL PLL
D
F
W
D
F
R
F
A
R
F
T
W
P
A
R
S
P
O
A
DAC
DAC CLOCK
CPUMP
DOWN
LOGIC
DPHASE
TIMING AND CONTROL LOGIC
PHASE-TO-
÷ M
÷ 8
÷ 2
CONTROL REGISTERS
÷ N
AD9858
15
AFREQUENCY
32
32
14
32
15
10
M
U
X
0
Figure 1.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| AD9858PCB | 制造商:AD 制造商全稱:Analog Devices 功能描述:1 GSPS Direct Digital Synthesizer |
| AD9858TLPCB | 制造商:AD 制造商全稱:Analog Devices 功能描述:1 GSPS Direct Digital Synthesizer |
| AD9858XSV | 制造商:Analog Devices 功能描述: |
| AD9859 | 制造商:AD 制造商全稱:Analog Devices 功能描述:400 MSPS, 10-Bit, 1.8 V CMOS Direct Digital Synthesizer |
| AD9859/PCB | 制造商:Analog Devices 功能描述:NCO, 400MSPS 10 BIT, 1.8V CMOS DIRECT DGTL SYNTHESIZER - Bulk |
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