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參數(shù)資料
| 型號： | SP5659MP1S |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | 2·7GHz I2C Bus Low Phase Noise Synthesiser |
| 中文描述： | 2.7 GHz的I2C總線的低相位噪聲合成器 |
| 文件頁數(shù)： | 7/12頁 |
| 文件大?。?/td> | 143K |
| 代理商： | SP5659MP1S |
7
SP5659
DOUBLE CONVERSION TUNER SYSTEMS
The high 2·7GHz maximum operating frequency and excellent
noise characteristics of the SP5659 allow the construction of
double conversion high IF tuners.
A typical as shown in Fig. 5 uses the SP5659 as the first local
oscillator control for full band up conversion to an IF of greater
than 1GHz. The wide range of reference division ratios allows the
SP5659 to be used for both the up converter local oscillator with
a high phase comparison frequency (hence low phase noise)
and the down converter which uses the device in a lower
comparison frequency mode, which gives a fine step size.
50-900MHz
SP8659
SP8659
REFERENCE CLOCK
FIRST LO
SECOND LO
1650-2700MHz
1·6GHz
38·9MHz
Fig. 5 Example of double conversion from VHF/UHF frequencies to TV IF
BCW31
2·2n
47k
16k
TUNER
SP5659
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
1n
1
30V
22k
1n
OSCILLATOR OUTPUT
1
5V
10n
ADC
P0
P1
1
12V
68p
13·3k
15n
P3
P2
REF/COMP
10n
CONTROL
MICRO
REF
ADDRESS
SDA
SCL
SP5659
1
2
3
4MHz 18p
Optional application using on-chip
crystal controlled oscillator
Fig. 6 Typical application
APPLICATION NOTES
An application note, AN168, is available for designing with
synthesisers such as the SP5659. It covers aspects such as loop
filter design and decoupling.
The application note is published in the Mitel Semiconductor
Media IC Handbook. A generic test/demonstration board has
been produced, which can be used for the SP5659. A circuit
diagram and layout for the board are shown in Figs. 7 and 8.
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 external reference sources
The programming codes relevant to these tests are given in
Fig. 3.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 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 |
| SP5668KGMP1S | 2.7GHz 3-Wire Bus Controlled Synthesiser |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SP5668 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:2.7GHz 3-Wire Bus Controlled Synthesiser |
| SP5668KG | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:2.7GHz 3-Wire Bus Controlled Synthesiser |
| SP5668KGMP1S | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:2.7GHz 3-Wire Bus Controlled Synthesiser |
| SP5668KGMP1T | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:2.7GHz 3-Wire Bus Controlled Synthesiser |
| SP5669 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:2.7GHz I2C Bus Controlled Synthesiser |
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