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參數資料
| 型號： | IMISM530AYB |
| 廠商： | CYPRESS SEMICONDUCTOR CORP |
| 元件分類： | XO, clock |
| 英文描述： | PROC SPECIFIC CLOCK GENERATOR, PDSO20 |
| 封裝： | SSOP-20 |
| 文件頁數： | 1/16頁 |
| 文件大小： | 164K |
| 代理商： | IMISM530AYB |
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SM530
Approved Product
Low EMI Spectrum Spread Clock
International Microcircuits,Inc.
1/5/99
525 Los Coches St., Milpitas, 95035 408-263-6300, FAX 408-263-6571
Rev. 1.6
http:/www.imicorp.com
Page 1 of 16
FEATURES
Reduces Systemic EMI.
Modulates external source clock.
3 - 5 Volt power supply.
14 to 120 MHz.operating frequency range
Output is multiplied or divided by 1, 2 or 4.
Digitally controlled modulation.
TTL/CMOS compatible outputs.
Center and Down Spread modulation.
Compliant with all major CISC, RISC and
DSP processors.
Low short term jitter.
Synchronous output enable.
Power down mode for low current operation
Available in 20 pin SSOP and TSSOP
packages.
APPLICATIONS
Desktop/Laptop Computer
Modems
Scanners, Printers, Copiers, Fax Machines, MFP’s
Disk and CD-ROM Drives
Automotive and EmbeddedSystems
Networking, LAN/WAN
Digital Cameras, Games
LCD displays
BENEFITS
Time to Market
Lower cost of compliance
Programmable EMI reduction
No degradation in Rise/Fall times
Lower component and PCB layer count
GENERAL DESCRIPTION
The IMI SM530 is a Spectrum Spread Clock Modulator designed for the purpose of reducing the Electro- Magnetic
Interference (EMI) found in today’s high speed digital systems. The SM530 is well suited for a wide range of digital
system applications that require a reduction of radiated energy. This unwanted radiated energy is usually found in
the odd harmonics of digital system clocks. By increasing the bandwidth of the digital clock, measured EMI at the
fundamental and harmonic frequencies is greatly reduced. This reduction in radiated energy can significantly
reduce the cost of complying with regulatory requirements and time to market, without degrading clock and timing
signals.
The IMI SM530 is extremely versatile and flexible in that program control is available for each of the operating
modes. Program control is provided for Input Frequency, Output Frequency Multiplication, Output Bandwidth,
Center/Down Spread of Fout, Modulation ON/OFF and Fout state during Power Down Mode
Depending on the range of operation, the output clock, Fout, can be a multiple (1, 2, 4) or a fraction (1, 1/2, 1/4) of
the input frequency. The SM530 can synchronously stop the modulated output at the low logic level. The power-
down mode adds the flexibility of operating in a completely static mode for reduced standby current and simplified
system board testing.
There are many benefits to using the SM530 Low EMI Clock Modulator. The most important benefit is reducing
the amount of clock related EMI by as much as 12 - 18 dB., depending on the application. Refer to SM532
datasheet for the 16 pin SOIC version, which only supports Center-Spread operation.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| IMISM530AYBT | 制造商:Cypress Semiconductor 功能描述: |
| IMISM532 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Low EMI Spectrum Spread Clock |
| IMISM532AXB | 制造商:Cypress Semiconductor 功能描述:LOW EMI SPREAD SPECTRUM CLOCK |
| IMISM532AXBT | 制造商:Cypress Semiconductor 功能描述: |
| IMISM560BSZ | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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