參數(shù)資料
型號(hào)： EVAL-ADF4360-8EB1
廠(chǎng)商： Analog Devices, Inc.
元件分類(lèi)： XO, clock
英文描述： Integrated Synthesizer and VCO
中文描述： 綜合合成器和VCO
文件頁(yè)數(shù)： 21/24頁(yè)
文件大?。?/td> 434K
代理商： EVAL-ADF4360-8EB1
ADF4360-8
OUTPUT MATCHING
There are a number of ways to match the output of the
ADF4360-8 for optimum operation; the most basic is to use a
50 resistor to V
VCO
. A dc bypass capacitor of 100 pF is
connected in series as shown in Figure 26. Because the resistor
is not frequency dependent, this provides a good broadband
match. The output power in the circuit below typically gives
9 dBm output power into a 50 load.
Rev. 0 | Page 21 of 24
L
100pF
0
RF
OUT
V
VCO
50
Figure 27. Optimum ADF4360-8 Output Stage
100pF
0
RF
OUT
V
VCO
50
51
The recommended value of this inductor changes with the VCO
center frequency. A graph of the optimum inductor value versus
frequency is shown in Figure 28.
CENTRE FREQUENCY (MHz)
I
300
250
150
200
100
0
50
0
100
200
300
5000
400
0
Figure 26. Simple ADF4360-8 Output Stage
A better solution is to use a shunt inductor (acting as an RF
choke) to V
VCO.
This gives a better match and, therefore, more
output power.
Experiments have shown that the circuit shown in Figure 27
provides an excellent match to 50 over the operating range of
the ADF4360-8. This gives approximately 0 dBm output power
across the specific frequency range of the ADF4360-8 using the
recommended shunt inductor, followed by a 100 pF dc blocking
capacitor.
Figure 28. Optimum ADF4360-8 Shunt Inductor
Both complementary architectures can be examined using the
EVAL-ADF4360-8EB1 evaluation board. If the user does not
need the differential outputs available on the ADF4360-8, the
user should either terminate the unused output or combine
both outputs using a balun. Alternatively, instead of the LC
balun, both outputs may be combined using a 180° rat-race
coupler.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
EVAL-ADF4360-8EBZ1 功能描述:BOARD EVALUATION FOR ADF4360-8 RoHS:是 類(lèi)別:編程器，開(kāi)發(fā)系統(tǒng) >> 評(píng)估演示板和套件 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 主要目的:電源管理，電池充電器 嵌入式:否 已用 IC / 零件:MAX8903A 主要屬性:1 芯鋰離子電池 次要屬性:狀態(tài) LED 已供物品:板
EVAL-ADF4360-9EBZ1 功能描述:EVALUATION BOARD FOR ADF4360-9 RoHS:是 類(lèi)別:編程器，開(kāi)發(fā)系統(tǒng) >> 評(píng)估演示板和套件 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 主要目的:電信，線(xiàn)路接口單元（LIU） 嵌入式:- 已用 IC / 零件:IDT82V2081 主要屬性:T1/J1/E1 LIU 次要屬性:- 已供物品:板，電源，線(xiàn)纜，CD 其它名稱(chēng):82EBV2081
EVAL-ADF4602EB3Z 制造商:Analog Devices 功能描述:EVALUATION BOARD - Boxed Product (Development Kits)
EVAL-ADF4602EB5Z 制造商:Analog Devices 功能描述:EVALUATION BOARD - Boxed Product (Development Kits)
EVAL-ADF4XXXZ-USB 功能描述:BOARD ADAPTER USB/PAR ADF4XXX RoHS:是 類(lèi)別:編程器，開(kāi)發(fā)系統(tǒng) >> 配件 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program RoHS指令信息:IButton RoHS Compliance Plan 標(biāo)準(zhǔn)包裝:1 系列:- 附件類(lèi)型:USB 至 1-Wire? RJ11 適配器 適用于相關(guān)產(chǎn)品:1-Wire? 設(shè)備 產(chǎn)品目錄頁(yè)面:1429 (CN2011-ZH PDF)
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