Overview
Description
The 181-53 generates a low EMI output clock from a clock or crystal input. The device uses IDT's proprietary mix of analog and digital Phase Locked Loop (PLL) technology to spread the frequency spectrum of the output, thereby reducing the frequency amplitude peaks by several dB. The 181-53 offers center spread selection of +/-0.625% and +/-1.875%. Refer to the MK1714-01/02 for the widest selection of input frequencies and multipliers. IDT offers a complete line of EMI reducing clock generators. Consult us when you need to remove crystals and oscillators from your board.
Features
- Pin and function compatible to Cypress W181-53
- Packaged in 8-pin SOIC
- Provides a spread spectrum output clock
- Accepts a clock input and provides same frequency dithered output
- Input frequency of 46 to 75 MHz for Clock input
- Peak reduction by 7dB - 14dB typical on 3rd - 19th odd harmonics
- Spread percentage selection for +/-0.625% and +/-1.875%
- Operating voltage of 3.3 V and 5 V
- Advanced, low-power CMOS process
Comparison
Applications
Documentation
= Featured Documentation
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Type | Title | Date |
Datasheet | PDF 186 KB | |
Product Change Notice | PDF 361 KB | |
Product Change Notice | PDF 223 KB | |
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Design & Development
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.