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ASM3P2821B - Low Power EMI Reduction IC

General Description

The ASM3P2821B is a versatile spread spectrum frequency modulator designed specifically for input clock frequencies in the range of 15MHz - 27MHz.

The ASM3P2821B can generate an EMI reduced clock from a ceramic resonator or system clock.

2.5%.

Key Features

  • FCC approved method of EMI attenuation. Generates a 1X low EMI spread spectrum clock of the input frequency. Input frequency range: 15MHz.
  • 27MHz. Internal loop filter minimizes external components and board space. Frequency deviation: -2.5% Low inherent cycle-to-cycle jitter. 3.3V operating voltage. TTL or CMOS compatible inputs and outputs. Ultra-low power CMOS design. o Pinout range. Available in 8-pin SOIC and TSSOP. TBD mA @ 3.3V, 24MHz compatible with Cypress CY25811. The ASM3P282.

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Datasheet Details

Part number ASM3P2821B
Manufacturer Alliance Semiconductor Corporation
File Size 208.91 KB
Description Low Power EMI Reduction IC
Datasheet download datasheet ASM3P2821B Datasheet

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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October 2003 www.DataSheet4U.com ASM3P2821B rev 1.0 Features FCC approved method of EMI attenuation. Generates a 1X low EMI spread spectrum clock of the input frequency. Input frequency range: 15MHz – 27MHz. Internal loop filter minimizes external components and board space. Frequency deviation: -2.5% Low inherent cycle-to-cycle jitter. 3.3V operating voltage. TTL or CMOS compatible inputs and outputs. Ultra-low power CMOS design. o Pinout range. Available in 8-pin SOIC and TSSOP. TBD mA @ 3.3V, 24MHz compatible with Cypress CY25811. The ASM3P2821B reduces electromagnetic interference (EMI) at the clock source, allowing system wide reduction of EMI of down stream clock and data dependent signals.