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參數(shù)資料
| 型號(hào)： | SKY72301-21 |
| 廠商： | SKYWORKS SOLUTIONS INC |
| 元件分類： | XO, clock |
| 英文描述： | PLL FREQUENCY SYNTHESIZER, 1000 MHz, PDSO28 |
| 封裝： | LEAD FREE, TSSOP-28 |
| 文件頁(yè)數(shù)： | 1/3頁(yè) |
| 文件大?。?/td> | 132K |
| 代理商： | SKY72301-21 |
Skyworks Solutions, Inc. Phone [781] 376-3000 Fax [781] 376-3100 sales@skyworksinc.com www.skyworksinc.com
Skyworks Proprietary Information. Products and product information are subject to change without notice. Spring 2006
829
SYNTHESIZERS/PLLS
SKY72301: Spur-Free, 1 GHz Dual Fractional-N
Frequency Synthesizer
DATA SHEET
Skyworks offers lead (Pb)-free, RoHS (Restriction of
Hazardous Substances)-compliant packaging.
NEW
Applications
●
General-purpose RF systems
●
Low bit rate wireless telemetry
●
Instrumentation
●
Specialized Mobile Radios (SMRs) and Private Mobile
Radios (PMRs)
Features
●
Spur-free operation
●
1.0 GHz maximum operating frequency
●
500 MHz maximum auxiliary synthesizer
●
Ultra-small step size, 100 Hz or less
●
High internal reference frequency enables large loop
bandwidth implementations
●
Very fast switching speed (e.g., below 100 s)
●
Phase noise to -96 dBc/Hz inside the loop filter bandwidth
@ 950 MHz
●
Software programmable power-down modes
●
High-speed serial interface up to 100 Mbps
●
Three-wire programming
●
Programmable division ratios on reference frequency
●
Phase detectors with programmable gain provide a
programmable loop bandwidth
●
Frequency power steering further enhances rapid
acquisition time
●
On-chip crystal oscillator
●
Frequency adjust for temperature compensation
●
Direct digital modulation
●
3 V operation
●
5 V output to loop filter
●
EP-TSSOP (28-pin, 9.7 x 6.4 x 1.1 mm) Pb-free (MSL3, 260 °C
per JEDEC J-STD-020) package
Description
Skyworks SKY72301 direct digital modulation fractional-N fre-
quency synthesizer provides ultrafine frequency resolution, fast
switching speed, and low phase noise performance. This synthe-
sizer is a key building block for high-performance radio system
designs that require low power and fine step size.
The ultrafine step size of less than 100 Hz allows this synthesizer
to be used in very narrow band wireless applications. With proper
temperature sensing or through control channels, the synthe-
sizer's fine step size can compensate for crystal oscillator or
Intermediate Frequency (IF) filter drift. As a result, crystal oscilla-
tors or crystals can replace temperature-compensated or
ovenized crystal oscillators, reducing parts count and associated
component cost. The device's fine step size can also be used for
Doppler shift corrections.
The SKY72301 has a phase noise floor of -95 dBc/Hz up to
1.0 GHz operation as measured inside the loop bandwidth. This is
permitted by the on-chip low noise dividers and low divide ratios
provided by the device's high fractionality.
Reference crystals or oscillators up to 50 MHz can be used with
the SKY72301. The crystal frequency is divided down by indepen-
dent programmable divider ratios of 1 to 32 for the main and
auxiliary synthesizers. The phase detectors can operate at a max-
imum speed of 25 MHz, which allows better phase noise due to
the lower division value. With a high reference frequency, the loop
bandwidths can also be increased. Larger loop bandwidths
improve the settling times and reduce in-band phase noise.
Therefore, typical switching times of less than 100 s can be
achieved. The lower in-band phase noise also permits the use of
lower cost Voltage Controlled Oscillators (VCOs) in customer
applications.
The SKY72301 has a frequency power steering circuit that helps
the loop filter steer the VCO when the frequency is too fast or too
slow, further enhancing acquisition time.
Innovation to Go
TM
Now available for purchase online.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| SKY72301-22 | 功能描述:鎖相環(huán) - PLL 1GHz / 500MHz Syn. Phase noise-96dBc/Hz RoHS:否 制造商:Silicon Labs 類型:PLL Clock Multiplier 電路數(shù)量:1 最大輸入頻率:710 MHz 最小輸入頻率:0.002 MHz 輸出頻率范圍:0.002 MHz to 808 MHz 電源電壓-最大:3.63 V 電源電壓-最小:1.71 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:QFN-36 封裝:Tray |
| SKY72302 | 制造商:SKYWORKS 制造商全稱:SKYWORKS 功能描述:Spur-Free, 6.1 GHz Dual Fractional-N Frequency Synthesizer |
| SKY72302-21 | 功能描述:時(shí)鐘合成器/抖動(dòng)清除器 6.1GHz 400Hz step Freq. Synthesizer RoHS:否 制造商:Skyworks Solutions, Inc. 輸出端數(shù)量: 輸出電平: 最大輸出頻率: 輸入電平: 最大輸入頻率:6.1 GHz 電源電壓-最大:3.3 V 電源電壓-最小:2.7 V 封裝 / 箱體:TSSOP-28 封裝:Reel |
| SKY72310-362 | 功能描述:IC SYNTHESIZER 2.1GHZ 24QFN RoHS:是 類別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 時(shí)鐘發(fā)生器，PLL，頻率合成器 系列:- 產(chǎn)品變化通告:Product Discontinuation 04/May/2011 標(biāo)準(zhǔn)包裝:96 系列:- 類型:時(shí)鐘倍頻器，零延遲緩沖器 PLL:帶旁路 輸入:LVTTL 輸出:LVTTL 電路數(shù):1 比率 - 輸入:輸出:1:8 差分 - 輸入:輸出:無(wú)/無(wú) 頻率 - 最大:133.3MHz 除法器/乘法器:是/無(wú) 電源電壓:3 V ~ 3.6 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:16-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:16-TSSOP 包裝:管件 其它名稱:23S08-5HPGG |
| SKY72310-362LF | 功能描述:IC SYNTHESIZER 2.1GHZ 24-QFN RoHS:是 類別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 時(shí)鐘發(fā)生器，PLL，頻率合成器 系列:- 標(biāo)準(zhǔn)包裝:2,000 系列:- 類型:PLL 頻率合成器 PLL:是 輸入:晶體 輸出:時(shí)鐘 電路數(shù):1 比率 - 輸入:輸出:1:1 差分 - 輸入:輸出:無(wú)/無(wú) 頻率 - 最大:1GHz 除法器/乘法器:是/無(wú) 電源電壓:4.5 V ~ 5.5 V 工作溫度:-20°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-LSSOP（0.175"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:16-SSOP 包裝:帶卷 (TR) 其它名稱:NJW1504V-TE1-NDNJW1504V-TE1TR |
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