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參數(shù)資料
| 型號： | SP5768 |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | 3.0GHz Low Phase Noise Frequency Synthesiser(3.0GHz低噪聲頻率合成器) |
| 中文描述： | 主頻低相噪頻率合成器（主頻低噪聲頻率合成器） |
| 文件頁數(shù)： | 1/10頁 |
| 文件大?。?/td> | 83K |
| 代理商： | SP5768 |
1
Preliminary Information
SP5768
SP5768
3.0GHz Low Phase Noise Frequency Synthesiser
Preliminary Information
Description
The SP5768 is a single chip frequency synthesiser
designed for tuning systems up to 3.0GHz and is optimized
for low phase noise with comparison frequencies up to 4
MHz.
The RF programmable divider contains a front end dual
modulus 16/17 functioning over the full operating range
and allows for coarse tuning in the upconverter application
and fine tuning in the downconverter.
Comparison frequencies are obtained either from a crystal
controlled on-chip oscillator or from an external source.
A buffered reference frequency output is also available to
drive a second SP5768.
The device also contains 4 switching ports.
Features
G
Complete 3.0GHz single chip system
G
Optimised for low phase noise, with comparison
frequencies up to 4 MHz
G
No RF prescaler
G
Selectable reference division ratio
G
Reference frequency output
G
Selectable charge pump current
G
Integrated loop amplifier
G
Four switching ports
G
Low power replacement for SP5658 and 5668
G
Downwards software compatible with SP5658
G
ESD protection, (Normal ESD handling procedures
should be observed)
DS5077
Issue no 1.3
October 1999
Applications
G
TV, VCR and Cable tuning systems
G
Communications systems
Ordering Information
SP5768/KG/MP1S (Tubes)
SP5768/KG/MP1T (Tape and Reel)
SP5768/KG/QP1S (Tubes)
SP5768/KG/QP1T (Tape and Reel)
Figure 1 SP5768 block diagram
PORT P1/OC
RF INPUT
16/17
13 BIT
COUNT
4 BIT
COUNT
REFERENCE
DIVIDER
REF
CRYSTAL
CHARGE PUMP
DRIVE
17 BIT LATCH
6 BIT LATCH
DATA
CLOCK
ENABLE
DATA
INTERFACE
5 BIT
LATCH & PORT/
TEST MODE
INTERFACE
PORT P0/OP
PORT P2
PORT P3
CRYSTAL CAP
相關PDF資料 |
PDF描述 |
|---|---|
| SP5769 | 3GHz I2C Bus Synthesiser |
| SP5769A | 3GHz I2C Bus Synthesiser |
| SP5769AKG | 3GHz I2C Bus Synthesiser |
| SP5769AKGMP1S | Circular Connector; No. of Contacts:66; Series:MS27484; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:18; Circular Contact Gender:Pin; Circular Shell Style:Straight Plug; Insert Arrangement:18-35 RoHS Compliant: No |
| SP5769AKGMP1T | Circular Connector; No. of Contacts:9; Series:MS27484; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:18; Circular Contact Gender:Socket; Circular Shell Style:Straight Plug; Insert Arrangement:18-96 RoHS Compliant: No |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| SP5768KG | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:3.0 GHz Low Phase Noise Frequency Synthesiser |
| SP5768MP1S | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:3.0 GHz Low Phase Noise Frequency Synthesiser |
| SP5768MP1T | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:3.0 GHz Low Phase Noise Frequency Synthesiser |
| SP5769 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:3GHz I2C Bus Synthesiser |
| SP5769A | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:3GHz I2C Bus Synthesiser |
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