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ASM3P2508SP Datasheet Clock Synthesizer And Frequency Generator

Manufacturer: Alliance Semiconductor Corporation

Overview: February 2005 .. rev 0.4 ASM3P2508SP Clock Synthesizer and Frequency Generator with Peak EMI.

General Description

The ASM3P2508SP is a versatile Dual PLL based Clock Synthesizer and Frequency Generator optimised and designed specifically for three clock frequencies.

The PCI_CLK output from ASM3P2508SP reduces Key Specifications Description Supply voltages Input Frequency Cycle-to-Cycle Jitter Output Duty Cycle Output Rise and Fall Time SSC Modulation Rate SSC Frequency Deviation Specification VDD = 3.3V ±0.3V 25 MHz 175 pS ( Max) 45/55% 1.1 nS (Max) 30KHz (Typ) -0.5% (Typ) electromagnetic interference (EMI) at the clock source, allowing system wide reduction of EMI of all clock dependent signals.

ASM3P250

Key Features

  • Dual PLL based Architecture Operates with a 3.3V ±0.3V supply. Generates an EMI optimized Spread Spectrum PCI Clock output Generates a high accuracy non Spread T1 clock of ±25ppm accuracy. Generates a non spread system reference clock Low power CMOS design. Input frequency: 25 MHz. Outputs: Sys_ REF_CLK: 20 MHz T1 Clock: 25 MHz (±25 ppm) PCI_CLK: 33.33MHz Spread Spectrum.
  • Frequency deviation: -0.5% (Typ). Available in 8L SOIC Package. The ASM3.

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ASM3P2508SP Distributor