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參數(shù)資料
| 型號： | EVAL-ADF4213EB1 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Evaluation Board For PLL Frequency Synthesizer |
| 中文描述： | 評估板鎖相環(huán)頻率合成器 |
| 文件頁數(shù)： | 2/6頁 |
| 文件大?。?/td> | 277K |
| 代理商： | EVAL-ADF4213EB1 |
EVAL-ADF4213EB1
REV.PrA 12/00
–2–
Figure 1. Evaluation Board Silkscreen
Figure 2. PC Cable Diagram
Hardware D escription
T he evaluation board comes with a cable for connecting to
the printer port of a PC. T he silk screen and cable diagram for
the evaluation board are shown below. T he board schematic is
shown on pages 3 and 4.
T he board is powered from a single 9V battery. T he power
supply ciruitry allows the user to choose either 3V or 5V for
the ADF4213 V
DD
and V
P
, and for the VCO supplies. T he
default settings are 3V for the ADF4213 V
DD
and 5V for the
ADF4213 V
P
and for the VCO supplies.
It is very important
to note that the ADF4213 V
D D
should never exceed the
ADF4213 V
P
. T his can damage the device.
All components necessary for LO generation are on-board.
T he 13MHz T CX O from Vectron provides the necessary
Reference Input. T here are two channels controlled by the
ADF4213.
T he RF PLL is made up of one half of the ADF4213, a pas-
sive loop filter (20kHz bandwidth) and the VCO 190-902T
from Vari-L. T he output is available at RFOUT through a
standard SMA connector.
T he IF PLL is made up of one half of the ADF4213, a pas-
sive loop filter (20kHz bandwidth) and the VCO 190-540T
from Vari-L. T he output is available at IFOUT through a
standard SMA connector.
If the user wishes, they may use their own power supplies and
reference input. In this case, they need to insert SMA con-
nectors as shown on the silkscreen and block diagram.
T he AD7706 A/D converter is used to monitor the power
supply voltage and current consumption of the ADF4213.
T his helps the user pick the optimum synthesizer settings for
power consumption and also provides an alert if the battery
voltage is too low to sustain the required 3V or 5V for the
board supply.
RF loop component values shown in the circuit diagram are
for 900MHz RF output, 5mA CP current, VCO190-902T ,
200kHz channel spacing and 20kHz loop bandwidth.
IF loop component values are for 540MHz IF output, 5mA
CP current, VCO190-540T , 200kHz channel spacing and
20kHz loop bandwidth.
1
2
3
7
8
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10
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14
15
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25
1
2
3
4
5
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7
8
9
Black - CLK
Brown - DATA
Red - LE
Orange - CE
WhiteYellow
ADF411X/ADF421X CABLE CONNECTIONS Rev 2 (15/3/99)
25 Way Male
D-Type
To
PC Printer Port
9 Way
Female D-Type
To
ADF411X
ADF421X
Evaluation
Board
PC
EVAL-ADF411X
EVAL-ADF421X
6
4
5
Blue
Purple
13
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
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| EVAL-ADF4252EB1 | 制造商:Analog Devices 功能描述:Evaluation Board For ADF4252 Dual Fractional-N/Integer-N Frequency Synthesizer 制造商:Analog Devices 功能描述:ADF4252 EVAL BOARD (IF UNCONFIGURED) - Bulk |
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