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參數(shù)資料
| 型號(hào)： | SP5054 |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | 2.6GHz 3-Wire BUS Controlled Synthesiser(2.6GHz 三線總線控制的頻率合成器) |
| 中文描述： | 2.6GHz的3線總線控制合成器（2.6GHz的三線總線控制的頻率合成器） |
| 文件頁數(shù)： | 1/9頁 |
| 文件大小： | 278K |
| 代理商： | SP5054 |
The SP5054 is a single-chip frequency synthesiser designed
for satellite TV tuning systems. It is a programming variant of
the SP5055, allowing the design of one tuner with either I
2
C bus
or 3-wire bus format, depending on which device is inserted.
The SP5054, when used with a satellite varactor tuner, forms
a complete phase locked loop tuning system.
The circuit consists of a divide-by-16 prescaler with its own
preamplifier and a 14/15-bit programmable divider controlled
by a serially-loaded data register. Four independently
programmable open-collector outputs are included. The device
has four modes of operation, selected by the Mode Select
input; these modes are summarised in Table1.
The comparison frequencies are obtained by the division of
the output of a 4MHz crystal controlled on-chip oscillator. The
phase comparator has a charge pump output with an output
amplifier stage around which feedback may be applied. Only
one external transistor is required for varactor line driving.
FEATURES
I
Complete 2·6GHz Single Chip System
I
62·5kHz, 100kHz and 125kHz Step Size
I
Low Power Consumption (325mW Typ.)
I
Programming Compatible with Toshiba TD6380,
TD6381 and TD6382
*
I
Pin Compatible with SP5055
*
I
Low Radiation
I
Varactor Drive Amplifier Disable
I
Charge Pump Disable
I
Single Port 18/19 Bit Serial Data Entry
I
Four Controllable Outputs
I
ESD Protection
*
See notes on pin compatibility
Normal ESD handling precautions should be observed
APPLICATIONS
I
Satellite TV
I
High IF Cable Tuning Systems
ORDERING INFORMATION
SP5054 KG DPAS
(18-lead plastic package)
SP5054S KG MPAS
(16-lead miniature plastic package)
Fig. 1 Pin connections – top view
SP5054
2.6GHz 3-Wire BUS Controlled Synthesiser
DS3048 - 3.4 May 1996
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SP5055S | () |
| SP5055 | 2.6GHz Bidirectional IIC BUS Controlled Synthesiser(2.6GHz 雙向IIC總線控制的頻率合成器) |
| SP5070 | 2.4GHz Fixed Modulus Frequency Synthesiser(2.4GHz固定模數(shù)頻率合成器) |
| SP5502 | 1.3GHz IIC Bus 4-Address Synthesiser(1.3GHz IIC總線的頻率合成器（帶4條可編程IIC總線地址）) |
| SP5510 | 1.3GHz Bidirectional IIC Bus Controlled Synthesiser(1.3GHz 雙向IIC總線控制的頻率合成器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SP5054KGDPAS | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:2.6GHz 3-Wire BUS Controlled Synthesiser |
| SP5054SKGMPAS | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:2.6GHz 3-Wire BUS Controlled Synthesiser |
| SP5055 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:2.6GHz Bidirectional I2C BUS Controlled Synthesiser |
| SP5055SMP | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:2.6GHz Bidirectional I2C BUS Controlled Synthesiser |
| SP505A | 制造商:BLKBOX 功能描述: |
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