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參數(shù)資料
| 型號(hào)： | SP5658SKGMP2T |
| 廠(chǎng)商： | Mitel Networks Corporation |
| 英文描述： | 2.7GHz 3-Wire Bus Controlled Frequency Synthesiser |
| 中文描述： | 2.7GHz的3線(xiàn)總線(xiàn)控制頻率合成器 |
| 文件頁(yè)數(shù)： | 8/14頁(yè) |
| 文件大?。?/td> | 281K |
| 代理商： | SP5658SKGMP2T |
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8
SP5658
DOUBLE CONVERSION TUNER SYSTEMS
The high 2.7GHz maximum operating frequency and
excellent noise characteristics of the SP5658 enables the
construction of double conversion high IF tuners.
A typical system shown in Fig.7 will use the SP5658 as the
first LO control for full band upconversion to an IF of greater
than 1GHz. The wide range of reference division ratios allows
the SP5658 to be used both for the up converter LO with a high
phase comparator frequency (hence low phase noise) and the
down converter which utilises the device in a lower
comparison frequency mode (which offers a fine step size).
50–900MHz
1.6GHz
38.9MHz
1650–2700MHz
SP5658
SP5658
First LO
Second LO
CONTROL
MICRO
15nF
68pF
+30V
+5V
22k
16k
47k
+12V
2n2
2N3904
1n
1n
10n
P1
TUNER
OSCILLATOR
OUTPUT
S
13k3
P0
DIS
ENABLE
LOCK
CLOCK
DATA
REF10n
18pF
4MHz
Optional application utilising
on–board crystal controlled
oscillator
1
14
2
3
4
5
6
7
13
12
11
10
8
9
APPLICATION NOTES
A generic set of application notes AN168 for designing
with synthesisers such as the SP5658 has been written. This
covers aspects such as loop filter design and decoupling. This
application note is also featured in the Media IC Handbook.
A generic test/demo board has been produced which can
be used for the SP5658. A circuit diagram and layout for the
board is shown in Figs. 8 and 9.
The board can be used for the following purposes:
(A) measuring RF sensitivity performance.
(B) Indicating port function.
(C) Synthesising a voltage controlled oscillator.
(D) Testing of external reference sources.
Fig. 6 Example of double conversion from VHF/UHF frequencies to TV IF
Fig. 7 Typical application, SP5658F
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SP5659MP1S | 2·7GHz I2C Bus Low Phase Noise Synthesiser |
| SP5659 | 2·7GHz I2C Bus Low Phase Noise Synthesiser |
| SP5659KG | 2·7GHz I2C Bus Low Phase Noise Synthesiser |
| SP5659KGMP1T | 2·7GHz I2C Bus Low Phase Noise Synthesiser |
| SP5668KG | 2.7GHz 3-Wire Bus Controlled Synthesiser |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SP5659 | 制造商:MITEL 制造商全稱(chēng):Mitel Networks Corporation 功能描述:2·7GHz I2C Bus Low Phase Noise Synthesiser |
| SP5659KG | 制造商:MITEL 制造商全稱(chēng):Mitel Networks Corporation 功能描述:2·7GHz I2C Bus Low Phase Noise Synthesiser |
| SP5659KGMP1T | 制造商:MITEL 制造商全稱(chēng):Mitel Networks Corporation 功能描述:2·7GHz I2C Bus Low Phase Noise Synthesiser |
| SP5659MP1S | 制造商:MITEL 制造商全稱(chēng):Mitel Networks Corporation 功能描述:2·7GHz I2C Bus Low Phase Noise Synthesiser |
| SP5668 | 制造商:MITEL 制造商全稱(chēng):Mitel Networks Corporation 功能描述:2.7GHz 3-Wire Bus Controlled Synthesiser |
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