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參數(shù)資料
| 型號： | SKY72310-362 |
| 廠商： | Skyworks Solutions Inc |
| 文件頁數(shù)： | 1/19頁 |
| 文件大小： | 0K |
| 描述： | IC SYNTHESIZER 2.1GHZ 24QFN |
| 標準包裝： | 1 |
| 類型： | 分數(shù) N 合成器（RF） |
| PLL： | 是 |
| 輸入： | 時鐘，晶體 |
| 輸出： | 時鐘，晶體 |
| 電路數(shù)： | 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： | -45°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 24-VFQFN 裸露焊盤 |
| 供應商設(shè)備封裝： | 24-QFN 裸露焊盤（4x4） |
| 包裝： | 標準包裝 |
| 其它名稱： | 863-1272-6 |
Skyworks Solutions, Inc. Phone [781] 376-3000 Fax [781] 376-3100 sales@skyworksinc.com www.skyworksinc.com
200705E Skyworks Proprietary and Confidential information Products and Product Information are Subject to Change Without Notice July 30, 2008
1
DATA SHEET
SKY72310: Spur-Free, 2.1 GHz Single 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
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 detector 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
3 V operation
5 V output to loop filter
QFN (24-pin, 4 x 4 mm) Pb-free (MSL3, 260 °C per JEDEC J-
STD-020) package
Skyworks offers lead (Pb)-free, RoHS (Restriction of
Hazardous Substances) compliant packaging.
Description
Skyworks SKY72310 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 SKY72310 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 SKY72310. The crystal frequency is divided down by
independent programmable dividers (1 to 32) for the synthesizer.
The phase detector 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.
The SKY72310 has a frequency power steering circuit that helps
the loop filter to steer the VCO when the frequency is too fast or
too slow, further enhancing acquisition time.
The unit operates with a three-wire, high-speed serial interface. A
combination of large bandwidth, fine resolution, and the three
wire interface allows for direct frequency modulation of the VCO.
This supports any continuous phase, constant envelope
modulation scheme such as Frequency Modulation (FM),
Frequency Shift Keying (FSK), Minimum Shift Keying (MSK), or
Gaussian Minimum Shift Keying (GMSK).
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SKY72310-362LF | 功能描述:IC SYNTHESIZER 2.1GHZ 24-QFN RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘發(fā)生器，PLL，頻率合成器 系列:- 標準包裝:2,000 系列:- 類型:PLL 頻率合成器 PLL:是 輸入:晶體 輸出:時鐘 電路數(shù):1 比率 - 輸入:輸出:1:1 差分 - 輸入:輸出:無/無 頻率 - 最大:1GHz 除法器/乘法器:是/無 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） 供應商設(shè)備封裝:16-SSOP 包裝:帶卷 (TR) 其它名稱:NJW1504V-TE1-NDNJW1504V-TE1TR |
| SKY72310-362LF_EVB_NON SKYWORKS VCO | 制造商:Skyworks Solutions Inc 功能描述:Eval Kit for SKY72310-362LF TW14-D880, Bulk |
| SKY73001 | 制造商:SKYWORKS 制造商全稱:SKYWORKS 功能描述:2 - 3500 MHz Direct Conversion Mixer |
| SKY73001_06 | 制造商:SKYWORKS 制造商全稱:SKYWORKS 功能描述:2 - 3500 MHz Direct Conversion Mixer |
| SKY73001-11 | 制造商:Skyworks Solutions Inc 功能描述:2 MHz - 3500 MHz RF/MICROWAVE DOUBLE BALANCED MIXER |
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