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參數資料
| 型號： | SKY72300-21 |
| 廠商： | Skyworks Solutions Inc |
| 文件頁數： | 1/22頁 |
| 文件大小： | 0K |
| 描述： | IC SYNTHESIZER 2.1GHZ 28-EPTSSOP |
| 產品目錄繪圖： | 28-TSSOP |
| 標準包裝： | 1 |
| 類型： | 分數 N 合成器 |
| PLL： | 是 |
| 輸入： | 時鐘，晶體 |
| 輸出： | 時鐘，晶體 |
| 電路數： | 1 |
| 比率 - 輸入:輸出： | 2:2 |
| 差分 - 輸入:輸出： | 是/是 |
| 頻率 - 最大： | 2.1GHz |
| 除法器/乘法器： | 是/無 |
| 電源電壓： | 2.7 V ~ 3.3 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 28-SOIC（0.173"，4.40mm 寬）裸露焊盤 |
| 供應商設備封裝： | 28-TSSOP 裸露焊盤 |
| 包裝： | 標準包裝 |
| 產品目錄頁面： | 587 (CN2011-ZH PDF) |
| 其它名稱： | 863-1076-6 |
Skyworks Solutions, Inc. Phone [781] 376-3000 Fax [781] 376-3100 sales@skyworksinc.com www.skyworksinc.com
101217N Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice September 11, 2009
1
DATA SHEET
SKY72300-21: Spur-Free, 2.1 GHz Dual Fractional-N
Frequency Synthesizer
Applications
General purpose RF systems
2.5G and 3G wireless infrastructure
Broadband wireless access
Low bit rate wireless telemetry
Instrumentation
L-band receivers
Satellite communications
Features
Spur-free operation
2.1 GHz maximum operating frequency
500 MHz maximum auxiliary synthesizer
Ultra-fine 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 –91 dBc/Hz inside the loop filter bandwidth
@ 1800 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 to provide a
programmable loop bandwidth
Frequency power steering further enhances rapid acquisition
time
On-chip crystal oscillator
Frequency adjust for temperature compensation
Skyworks offers lead (Pb)-free RoHS (Restriction of
Hazardous Substances) compliant packaging.
Innovation to GoTM
Now available for purchase online.
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) package (MSL3, 260 C
per JEDEC J-STD-020)
Description
Skyworks SKY72300-21 direct digital modulation fractional-N
frequency synthesizer provides ultra-fine frequency resolution,
fast switching speed, and low phase-noise performance. This
synthesizer is a key building block for high-performance radio
system designs that require low power and fine step size.
The ultra-fine step size of less than 100 Hz allows this synthesizer
to be used in very narrowband wireless applications. With proper
temperature sensing or through control channels, the
synthesizer’s fine step size can compensate for crystal oscillator
or Intermediate Frequency (IF) filter drift. As a result, crystal
oscillators 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 SKY72300-21 has a phase noise floor of –90 dBc/Hz up to
2.1 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 SKY72300-21. The crystal frequency is divided down by
independent programmable dividers (1 to 32) for the main and
auxiliary synthesizers. The phase detectors can operate at a
maximum 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.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| SKY72300-362 | 功能描述:時鐘合成器/抖動清除器 2.1GHz 100Hz step Freq. Synthesizer RoHS:否 制造商:Skyworks Solutions, Inc. 輸出端數量: 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 |
| SKY72301-22 | 功能描述:鎖相環 - PLL 1GHz / 500MHz Syn. Phase noise-96dBc/Hz RoHS:否 制造商:Silicon Labs 類型:PLL Clock Multiplier 電路數量: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:時鐘合成器/抖動清除器 6.1GHz 400Hz step Freq. Synthesizer RoHS:否 制造商:Skyworks Solutions, Inc. 輸出端數量: 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) >> 時鐘/計時 - 時鐘發生器，PLL，頻率合成器 系列:- 產品變化通告:Product Discontinuation 04/May/2011 標準包裝:96 系列:- 類型:時鐘倍頻器，零延遲緩沖器 PLL:帶旁路 輸入:LVTTL 輸出:LVTTL 電路數:1 比率 - 輸入:輸出:1:8 差分 - 輸入:輸出:無/無 頻率 - 最大:133.3MHz 除法器/乘法器:是/無 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） 供應商設備封裝:16-TSSOP 包裝:管件 其它名稱:23S08-5HPGG |
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