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參數(shù)資料
| 型號(hào)： | P2560B |
| 廠商： | Alliance Semiconductor Corporation |
| 英文描述： | Low Frequency EMI Reduction |
| 中文描述： | 減少低頻電磁干擾 |
| 文件頁(yè)數(shù)： | 1/7頁(yè) |
| 文件大?。?/td> | 187K |
| 代理商： | P2560B |
November 2003
rev 1.0
Features
FCC approved method of EMI attenuation
Generates a low EMI spread spectrum and a non-
spread reference signal of the input clock
frequency
Optimized for input frequency range from 20 to 32
MHz
Internal loop filter minimizes external components
and board space
Two selectable spread ranges
Low inherent cycle-to-cycle jitter
3.3 V or 5 V operating voltage
CMOS/TTL compatible inputs and outputs
Ultra low power CMOS design: 5.50 mA @3.3 V
Supports notebook VGA and other LCD timing
controller applications
SSON pin for Spread Spectrum On/Off and
Standby Mode controls
Available in 8-pin SOIC and TSSOP
Product Description
The P2560B is a versatile spread spectrum frequency
modulator designed specifically for a wide range of clock
frequencies. It reduces electromagnetic interference
Block Diagram
P2560B
Alliance Semiconductor
2575, Augustine Drive
Santa Clara, CA
Tel: 408.855.4900
Fax: 408.855.4999
www.alsc.com
Notice: The information in this document is subject to change without notice.
(EMI) at the clock source allowing system-wide reduction
of EMI of downstream clock and data dependent signals.
It allows significant system cost savings by reducing the
number of circuit board layers and shielding traditionally
required to pass EMI regulations.
The P2560B modulates the output of a single PLL in
order to spread the bandwidth of a synthesized clock,
thereby decreasing 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 clock generators. Lowering EMI by increasing
a signal’s bandwidth is called spread spectrum clock
generation.
The P2560B uses the most efficient and optimized
modulation profile approved by the FCC and is
implemented by using a proprietary all-digital method.
Applications
The P2560B is targeted toward the notebook VGA chip
and other displays using an LVDS interface, PC
peripheral devices, and embedded systems
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| P2560BF-08ST | Low Frequency EMI Reduction |
| P2613 | MCU CMOS 44 LD 40MHZ 16K OTP, -40C to +85C, 44-PLCC, T/R |
| P2613-12 | MCU CMOS 68 LD 40MHZ 16K OTP, -40C to +125C, 68-PLCC, TUBE |
| P2613-01 | MCU CMOS 44 LD LOW PWR, -40C to +85C, 44-PLCC, TUBE |
| P2613-02 | MCU CMOS 44 LD LOW PWR, -40C to +85C, 44-TQFP, TRAY |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| P2560B-08ST | 制造商:ALSC 制造商全稱:Alliance Semiconductor Corporation 功能描述:Low Frequency EMI Reduction |
| P2560BF-08SR | 功能描述:時(shí)鐘發(fā)生器及支持產(chǎn)品 20-32MHZ 3.3V GP EMI RoHS:否 制造商:Silicon Labs 類型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數(shù)量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-56 |
| P2560BF-08ST | 制造商:ALSC 制造商全稱:Alliance Semiconductor Corporation 功能描述:Low Frequency EMI Reduction |
| P2560BG-08SR | 制造商:PULSECORE 制造商全稱:PulseCore Semiconductor 功能描述:Low Frequency EMI Reduction |
| P2560BG-08ST | 制造商:PULSECORE 制造商全稱:PulseCore Semiconductor 功能描述:Low Frequency EMI Reduction |
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