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W181 - Peak Reducing EMI Solution

General Description

Output Modulated Frequency: Frequency modulated copy of the unmodulated input clock (SSON# asserted).

Crystal Connection or External Reference Frequency Input: This pin has dual functions.

It may either be connected to an external crystal, or to an external reference clock.

Key Features

  • Cypress PREMIS™ family offering.
  • Generates an EMI optimized clocking signal at the output.
  • Selectable input to output frequency.
  • Single 1.25% or 3.75% down or center spread output.
  • Integrated loop filter components.
  • Operates with a 3.3V or 5V supply.
  • Low power CMOS design.
  • Available in 8-pin SOIC (Small Outline Integrated Circuit) or 14-pin TSSOP (Thin Shrink Small Outline Package select options only) Table 1. Modulation Wi.

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Other Datasheets by Cypress (now Infineon)

Part Number Description
W180 Peak Reducing EMI Solution
W182 Full Feature Peak Reducing EMI Solution
W182-5 Full Feature Peak Reducing EMI Solution
W183 Full Feature Peak Reducing EMI Solution
W183-5 Full Feature Peak Reducing EMI Solution

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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W181 Peak Reducing EMI Solution Features • Cypress PREMIS™ family offering • Generates an EMI optimized clocking signal at the output • Selectable input to output frequency • Single 1.25% or 3.75% down or center spread output • Integrated loop filter components • Operates with a 3.3V or 5V supply • Low power CMOS design • Available in 8-pin SOIC (Small Outline Integrated Circuit) or 14-pin TSSOP (Thin Shrink Small Outline Package select options only) Table 1. Modulation Width Selection SS% 0 1 W181-01, 02, 03 Output Fin ≥ Fout ≥ Fin – 1.25% Fin ≥ Fout ≥ Fin – 3.75% W181-51, 52, 53 Output Fin + 0.625% ≥ Fin≥ – 0.625% Fin + 1.875% ≥ Fin≥ –1.875% Table 2.