參數(shù)資料
型號(hào)： ASM3I2760A-06OR
廠商： ALLIANCE SEMICONDUCTOR CORP
元件分類(lèi)： XO, clock
英文描述： Circular Connector; MIL SPEC:MIL-C-26482, Series I, Solder; Body Material:Aluminum; Series:PT06; No. of Contacts:10; Connector Shell Size:12; Connecting Termination:Solder; Circular Shell Style:Straight Plug; Body Style:Straight
中文描述： 13 MHz, OTHER CLOCK GENERATOR, PDSO6
封裝： TSOT-23, 6 PIN
文件頁(yè)數(shù)： 1/12頁(yè)
文件大?。?/td> 179K
代理商： ASM3I2760A-06OR
September 2005
rev 1.8
ASM3P2760A
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.
Low Power Peak EMI Reducing Solution
Features
Generates an EMI optimized clock signal at the
output.
Integrated loop filter components.
Operates with a 3.3V / 2.5V Supply.
Operating current less than 4mA.
Low power CMOS design.
Input frequency range: 6MHz to 12MHz for 2.5V.
: 6MHz to 13MHz for 3.3V.
Generates a 1X low EMI spread spectrum clock of
the input frequency.
Frequency deviation: ±0.65% @ 8MHz
Available in 6 pin TSOT-23, 8 pin SOIC and
8 pin TSSOP Packages.
Product Description
The ASM3P2760A is a versatile spread spectrum
frequency modulator designed specifically for a wide
range of clock frequencies. The ASM3P2760A reduces
electromagnetic interference (EMI) at the clock source,
allowing system wide reduction of EMI of all clock
dependent signals. The ASM3P2760A allows significant
system cost savings by reducing the number of circuit
board layers ferrite beads, shielding that are traditionally
required to pass EMI regulations.
The ASM3P2760A uses the most efficient and optimized
modulation profile approved by the FCC and is
implemented by using a proprietary all digital method.
The ASM3P2760A 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’.
Applications
The ASM3P2760A is targeted towards all portable
devices with very low power requirements like MP3
players and digital still cameras.
Key Specifications
Description
Supply voltages
Specification
VDD = 3.3V / 2.5V
Cycle-to-Cycle Jitter
200pS (Max)
Output Duty Cycle
45/55%
Modulation Rate Equation
F
IN
/256
Frequency Deviation
±0.65% @ 8MHz
Block Diagram
XIN
ModOUT
VSS
Frequency
Divider
Feedback
Divider
Modulation
Phase
Detector
Loop
Filter
VCO
Output
Divider
PLL
VDD
PD
Crystal
Oscillator
XOUT
相關(guān)PDF資料
PDF描述
ASM3P2760AF-08SR 3C COLOR-CODED RIBBON CABLE, .050 PITCH, 3C-1628-007 1731-050 CONNECTOR RoHS Compliant: Yes
ASM3I2760AF-08SR Flat / Ribbon Cable; Number of Conductors:20; Pitch Spacing:0.05"; Conductor Size AWG:28; No. Strands x Strand Size:7 x 36; Approval Bodies:UL
ASM3P2760AF-08ST Low Power Peak EMI Reducing Solution
ASM3I2760AF-08ST Low Power Peak EMI Reducing Solution
ASM3P2760AF-08TR Low Power Peak EMI Reducing Solution
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ASM3I2760A-08SR 制造商:ALSC 制造商全稱(chēng):Alliance Semiconductor Corporation 功能描述:Low Power Peak EMI Reducing Solution
ASM3I2760A-08ST 制造商:ALSC 制造商全稱(chēng):Alliance Semiconductor Corporation 功能描述:Low Power Peak EMI Reducing Solution
ASM3I2760A-08TR 制造商:ALSC 制造商全稱(chēng):Alliance Semiconductor Corporation 功能描述:Low Power Peak EMI Reducing Solution
ASM3I2760A-08TT 制造商:ALSC 制造商全稱(chēng):Alliance Semiconductor Corporation 功能描述:Low Power Peak EMI Reducing Solution
ASM3I2760AF-06OR 制造商:ALSC 制造商全稱(chēng):Alliance Semiconductor Corporation 功能描述:Low Power Peak EMI Reducing Solution
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