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參數資料
| 型號： | NB2969A |
| 廠商： | ON SEMICONDUCTOR |
| 英文描述： | Low Power, Reduced EMI Clock Synthesizer(低功率,降低EMI時鐘合成器) |
| 中文描述： | 低功耗，降低EMI時鐘合成器（低功率，降低電磁干擾時鐘合成器） |
| 文件頁數： | 1/8頁 |
| 文件大小： | 116K |
| 代理商： | NB2969A |
Semiconductor Components Industries, LLC, 2006
December, 2006
Rev. 3
1
Publication Order Number:
NB2969A/D
NB2969A
Low Power, Reduced EMI
Clock Synthesizer
The NB2969A is a versatile spread spectrum frequency modulator
designed specifically for a wide range of clock frequencies. The
NB2969A reduces ElectroMagnetic Interference (EMI) at the clock
source, allowing system wide reduction of EMI of all clock dependent
signals. The NB2969A allows significant system cost savings by
reducing the number of circuit board layers, ferrite beads and
shielding that are traditionally required to pass EMI regulations.
The NB2969A uses the most efficient and optimized modulation
profile approved by the FCC and is implemented by using a
proprietary all digital method.
The NB2969A modulates the output of a single PLL in order to
“spread” the bandwidth of a synthesized clock, and more importantly,
decreases the peak amplitudes of its harmonics. This results in
significantly lower system EMI compared to the typical narrow band
signal produced by oscillators and most frequency generators.
Lowering EMI by increasing a signal’s bandwidth is called ‘spread
spectrum clock generation’.
The NB2969A is targeted towards all portable devices with very
low power requirements like MP3 players, Notebooks and digital still
cameras.
Features
Generates an EMI Optimized Clocking Signal at the Output
Integrated Loop Filter Components
Operates with a 3.3 V / 2.5 V Supply
Operating Current less than 4.0 mA
Low Power CMOS Design
Input Frequency Range: 6.0 MHz to 12 MHz for 2.5 V
Input Frequency Range: 6.0 MHz to 13 MHz for 3.3 V
Generates a 1X Low EMI Spread Spectrum clock of the Input
Frequency
Frequency Deviation
1% @ 10 MHz
Available in TSOP
6 Package (TSOT
23
6)
Pb
Free Package is Available
MARKING
DIAGRAM*
*For additional marking information, refer to
Application Note AND8002/D.
TSOP
6
(TSOT
23
6)
SN SUFFIX
CASE 318G
See detailed ordering and shipping information in the package
dimensions section on page 7 of this data sheet.
ORDERING INFORMATION
http://onsemi.com
1
6
EOC = Specific Device Code
A
= Assembly Location
Y
= Year
W
= Work Week
= Pb
Free Package
EOCAYW
1
(Note: Microdot may be in either location)
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| NB3N2304NZ | 3.3V 1:4 Clock Fanout Buffer(3.3V 1:4 時鐘輸出緩沖器) |
| NB3N3001 | 3.3 V 106.25 MHz/ 212.5 MHz PureEdge Clock Generator with LVPECL Differential Output(帶LVPECL差分輸出的3.3V 106.25MHz/212.5MHz PureEdge 時鐘生成器) |
| NB3N502 | 14 MHz to 190 MHz PLL Clock Multiplier(14MHz到190MHz PLL時鐘倍頻器) |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| NB2969ASNR2 | 功能描述:鎖相環 - PLL 2.5V/3.3V Low Power 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 |
| NB2969ASNR2G | 功能描述:鎖相環 - PLL HF - EMI REDUCER 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 |
| NB2-E36R3-AC | 制造商:Fuji Electric 功能描述: |
| NB2-E36R3-DC | 制造商:Fuji Electric 功能描述: |
| NB2-E56R3-AC | 制造商:Fuji Electric 功能描述: |
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