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參數(shù)資料
| 型號： | DS4000N |
| 英文描述： | RECT BRIDGE 15A 100V WIRE LEADS |
| 中文描述： | 數(shù)控溫補 |
| 文件頁數(shù)： | 7/16頁 |
| 文件大?。?/td> | 227K |
| 代理商： | DS4000N |
DS4000 Digitally Controlled TCXO
7 of 16
TEMPERATURE-COMPENSATED CRYSTAL OSCILLATOR
The DS4000 can either function as a standalone TCXO or as a digitally controlled TCXO. When used as a
standalone TCXO, the only requirements needed to function properly are power, ground, and an output. However,
the 2-wire interface must be used to tune (push and pull) the crystal.
The DS4000 is capable of supplying two different outputs, F
1
and F
2
.
1) F
1
is the base frequency of the crystal unit inside of the device. The output type is a CMOS square wave.
2) F
2
is a programmable frequency output. The frequency select register can program this output to an integer
division of the base (F
1
) frequency. The duty cycle (DC) bit determines if the output is an n + 1 or a 2(n + 1)
division of F
1
.
F
2
FREQUENCY SELECT REGISTER (FSR) (5Dh)
Bit
7
6
5
4
Name
D7
D6
D5
D4
Default
0
0
0
0
F
2
= F
1
/ (FSR value + 1); with DC = 0
F
2
= F
1
/ [2 x (FSR value + 1)]; with DC = 1
TCXO CONTROL REGISTER (60h)
Bit
7
6
5
4
Name
X
X
X
X
Default
0
0
0
0
DC,
Duty Cycle Bit:
If 50% duty cycle is desired, then this bit must be set to logic 1. The default condition at
power-up is logic 0.
F
T
: This bit must be programmed by the user to 0.
F
1
OE,
F
1
Output Enable Bit:
This bit allows the user to disable/enable the F
1
output.
F
2
OE,
F
2
Output Enable Bit:
This bit allows the user to disable/enable the F
2
output.
3
D3
0
2
D2
0
1
D1
0
0
D0
0
3
2
1
F
T
0
0
F
2
OE
0
F
1
OE
0
DC
0
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PDF描述 |
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| DS4802 | Low Voltage, Micro Power, High Performance, Rail-To-Rail Dual Op-Amp |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| DS4006B-DV | 制造商:Wiremold / Legrand 功能描述:DS4000 Half Seam Clip/Blank Faceplate Fitting, Fog White |
| DS400MH | 制造商:Eaton Corporation 功能描述:Safety Switch Access/Meyers Type Hub-4 Inch |
| DS4010A-DV | 制造商:Wiremold / Legrand 功能描述:DS4000 Entrance End Fitting, Fog White |
| DS4010B-DV | 制造商:Wiremold / Legrand 功能描述:DS4000 Blank End Fitting, Fog White |
| DS4017-DV | 制造商:Wiremold / Legrand 功能描述:DS4000 Internal Elbow Fitting, Fog White |
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