- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄381366 > ASM3P2190A (Alliance Semiconductor Corporation) Peak Reducing EMI Solution PDF資料下載
參數(shù)資料
| 型號(hào)： | ASM3P2190A |
| 廠商： | Alliance Semiconductor Corporation |
| 英文描述： | Peak Reducing EMI Solution |
| 中文描述： | 峰值抑制EMI解決方案 |
| 文件頁(yè)數(shù)： | 1/7頁(yè) |
| 文件大小： | 117K |
| 代理商： | ASM3P2190A |
Alliance Semiconductor
2595, Augustine Drive
Santa Clara
CA 95054
Tel 408 855 4900
Fax 408 855 4999
www.alsc.com
November 2003
rev 1.0
ASM3P2190A
Notice: The information in this document is subject to change without notice.
Peak Reducing EMI Solution
Features
Generates an EMI optimized clocking
signal at the output.
Selectable output frequency range.
Single 1.25% or 2.4% down spread
output.
Integrated loop filter components.
Operates with a 3.3V supply.
Low-power CMOS design.
Available in 8-pin SOIC and 8-pin
Product Description
The ASM3P2190A is a versatile spread spectrum
frequency modulator designed specifically for a
wide
range
of
clock
ASM3P2190A
reduces
interference (EMI) at the clock source, allowing
system wide reduction of EMI of down stream
clock
and
data
dependent
ASM3P2190A allows significant system cost
savings by reducing the number of circuit board
layers and shielding that are traditionally required
to pass EMI regulations.
The ASM3P2190A 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
oscillators and most clock generators. Lowering
EMI by increasing a signal’s bandwidth is called
spread spectrum clock generation.
The ASM3P2190A uses the most efficient and
optimized modulation profile approved by the
FCC and is implemented by using a proprietary
all-digital method.
Applications
The ASM3P2190A is targeted towards notebook
LCD displays, other displays using an LVDS
interface, PC peripheral devices and embedded
systems.
frequencies.
electromagnetic
The
signals.
The
signal
produced
by
Key Specifications
Description
Specification
Supply voltages
V
DD
= 3.3V ± 5%
6 MHz
≤
30 MHz
325 ps (typical)
Frequency range
Cycle-to-cycle jitter
Selectable spread percentage
-1.25% or –2.4%
Output duty cycle
40/60% (worst case)
Output rise and fall time
Simplified Block Diagram
Pin Diagram
5ns (maximum)
X1
X2
3.3V
Spread spectrum output
(EMI suppressed)
CLKOUT
NC
VDD
FS1
1
2
3
4
5
6
7
8
CLKIN / X1
NC / X2
GND
SS%
ASM3P2190A
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ASM3P2474AG-06OR | PT 41C 17#16,27#20 PIN PLUG |
| ASM3P2474AF-08ST | Low Power Peak EMI Reducing Solution |
| ASM3P2474AF-08TR | Low Power Peak EMI Reducing Solution |
| ASM3P2474AF-08TT | Low Power Peak EMI Reducing Solution |
| ASM3P2474A | Low Power Peak EMI Reducing Solution |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ASM3P2190A-08SR | 制造商:ALSC 制造商全稱(chēng):Alliance Semiconductor Corporation 功能描述:Peak Reducing EMI Solution |
| ASM3P2190A-08ST | 制造商:ALSC 制造商全稱(chēng):Alliance Semiconductor Corporation 功能描述:Peak Reducing EMI Solution |
| ASM3P2190A-08TR | 制造商:ALSC 制造商全稱(chēng):Alliance Semiconductor Corporation 功能描述:Peak Reducing EMI Solution |
| ASM3P2190A-08TT | 制造商:ALSC 制造商全稱(chēng):Alliance Semiconductor Corporation 功能描述:Peak Reducing EMI Solution |
| ASM3P2274A | 制造商:PULSECORE 制造商全稱(chēng):PulseCore Semiconductor 功能描述:Low Power 4X Multiplier EMI Reduction IC |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。